diff --git a/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/DocumentsClient.java b/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/DocumentsClient.java index 3f7928e6e..0171c0e68 100644 --- a/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/DocumentsClient.java +++ b/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/DocumentsClient.java @@ -615,7 +615,8 @@ public final UnaryCallable createDocumentCalla // AUTO-GENERATED DOCUMENTATION AND METHOD. /** - * Create documents by importing data from external sources. + * Create documents by importing data from external sources. Dialogflow supports up to 350 + * documents in each request. If you try to import more, Dialogflow will return an error. * *

Sample code: * @@ -644,7 +645,8 @@ public final UnaryCallable createDocumentCalla // AUTO-GENERATED DOCUMENTATION AND METHOD. /** - * Create documents by importing data from external sources. + * Create documents by importing data from external sources. Dialogflow supports up to 350 + * documents in each request. If you try to import more, Dialogflow will return an error. * *

Sample code: * @@ -674,7 +676,8 @@ public final UnaryCallable createDocumentCalla // AUTO-GENERATED DOCUMENTATION AND METHOD. /** - * Create documents by importing data from external sources. + * Create documents by importing data from external sources. Dialogflow supports up to 350 + * documents in each request. If you try to import more, Dialogflow will return an error. * *

Sample code: * diff --git a/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/EnvironmentsClient.java b/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/EnvironmentsClient.java index 485c9225b..f9bd000bf 100644 --- a/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/EnvironmentsClient.java +++ b/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/EnvironmentsClient.java @@ -29,6 +29,7 @@ import com.google.cloud.dialogflow.v2beta1.stub.EnvironmentsStub; import com.google.cloud.dialogflow.v2beta1.stub.EnvironmentsStubSettings; import com.google.common.util.concurrent.MoreExecutors; +import com.google.protobuf.Empty; import java.io.IOException; import java.util.List; import java.util.concurrent.TimeUnit; @@ -44,10 +45,12 @@ * * 

{@code
  * try (EnvironmentsClient environmentsClient = EnvironmentsClient.create()) {
- *   AgentName parent = AgentName.ofProjectName("[PROJECT]");
- *   for (Environment element : environmentsClient.listEnvironments(parent).iterateAll()) {
- *     // doThingsWith(element);
- *   }
+ *   GetEnvironmentRequest request =
+ *       GetEnvironmentRequest.newBuilder()
+ *           .setName(
+ *               EnvironmentName.ofProjectEnvironmentName("[PROJECT]", "[ENVIRONMENT]").toString())
+ *           .build();
+ *   Environment response = environmentsClient.getEnvironment(request);
  * }
  * }
* @@ -298,6 +301,316 @@ public final ListEnvironmentsPagedResponse listEnvironments(ListEnvironmentsRequ return stub.listEnvironmentsCallable(); } + // AUTO-GENERATED DOCUMENTATION AND METHOD. + /** + * Retrieves the specified agent environment. + * + *

Sample code: + * + * 

{@code
+   * try (EnvironmentsClient environmentsClient = EnvironmentsClient.create()) {
+   *   GetEnvironmentRequest request =
+   *       GetEnvironmentRequest.newBuilder()
+   *           .setName(
+   *               EnvironmentName.ofProjectEnvironmentName("[PROJECT]", "[ENVIRONMENT]").toString())
+   *           .build();
+   *   Environment response = environmentsClient.getEnvironment(request);
+   * }
+   * }
+ * + * @param request The request object containing all of the parameters for the API call. + * @throws com.google.api.gax.rpc.ApiException if the remote call fails + */ + public final Environment getEnvironment(GetEnvironmentRequest request) { + return getEnvironmentCallable().call(request); + } + + // AUTO-GENERATED DOCUMENTATION AND METHOD. + /** + * Retrieves the specified agent environment. + * + *

Sample code: + * + * 

{@code
+   * try (EnvironmentsClient environmentsClient = EnvironmentsClient.create()) {
+   *   GetEnvironmentRequest request =
+   *       GetEnvironmentRequest.newBuilder()
+   *           .setName(
+   *               EnvironmentName.ofProjectEnvironmentName("[PROJECT]", "[ENVIRONMENT]").toString())
+   *           .build();
+   *   ApiFuture future =
+   *       environmentsClient.getEnvironmentCallable().futureCall(request);
+   *   // Do something.
+   *   Environment response = future.get();
+   * }
+   * }
+ */ + public final UnaryCallable getEnvironmentCallable() { + return stub.getEnvironmentCallable(); + } + + // AUTO-GENERATED DOCUMENTATION AND METHOD. + /** + * Creates an agent environment. + * + *

Sample code: + * + * 

{@code
+   * try (EnvironmentsClient environmentsClient = EnvironmentsClient.create()) {
+   *   CreateEnvironmentRequest request =
+   *       CreateEnvironmentRequest.newBuilder()
+   *           .setParent(
+   *               EnvironmentName.ofProjectEnvironmentName("[PROJECT]", "[ENVIRONMENT]").toString())
+   *           .setEnvironment(Environment.newBuilder().build())
+   *           .setEnvironmentId("environmentId-950205810")
+   *           .build();
+   *   Environment response = environmentsClient.createEnvironment(request);
+   * }
+   * }
+ * + * @param request The request object containing all of the parameters for the API call. + * @throws com.google.api.gax.rpc.ApiException if the remote call fails + */ + public final Environment createEnvironment(CreateEnvironmentRequest request) { + return createEnvironmentCallable().call(request); + } + + // AUTO-GENERATED DOCUMENTATION AND METHOD. + /** + * Creates an agent environment. + * + *

Sample code: + * + * 

{@code
+   * try (EnvironmentsClient environmentsClient = EnvironmentsClient.create()) {
+   *   CreateEnvironmentRequest request =
+   *       CreateEnvironmentRequest.newBuilder()
+   *           .setParent(
+   *               EnvironmentName.ofProjectEnvironmentName("[PROJECT]", "[ENVIRONMENT]").toString())
+   *           .setEnvironment(Environment.newBuilder().build())
+   *           .setEnvironmentId("environmentId-950205810")
+   *           .build();
+   *   ApiFuture future =
+   *       environmentsClient.createEnvironmentCallable().futureCall(request);
+   *   // Do something.
+   *   Environment response = future.get();
+   * }
+   * }
+ */ + public final UnaryCallable createEnvironmentCallable() { + return stub.createEnvironmentCallable(); + } + + // AUTO-GENERATED DOCUMENTATION AND METHOD. + /** + * Updates the specified agent environment. + * + *

This method allows you to deploy new agent versions into the environment. When an + * environment is pointed to a new agent version by setting `environment.agent_version`, the + * environment is temporarily set to the `LOADING` state. During that time, the environment keeps + * on serving the previous version of the agent. After the new agent version is done loading, the + * environment is set back to the `RUNNING` state. You can use "-" as Environment ID in + * environment name to update version in "draft" environment. WARNING: this will negate all recent + * changes to draft and can't be undone. You may want to save the draft to a version before + * calling this function. + * + *

Sample code: + * + * 

{@code
+   * try (EnvironmentsClient environmentsClient = EnvironmentsClient.create()) {
+   *   UpdateEnvironmentRequest request =
+   *       UpdateEnvironmentRequest.newBuilder()
+   *           .setEnvironment(Environment.newBuilder().build())
+   *           .setUpdateMask(FieldMask.newBuilder().build())
+   *           .setAllowLoadToDraftAndDiscardChanges(true)
+   *           .build();
+   *   Environment response = environmentsClient.updateEnvironment(request);
+   * }
+   * }
+ * + * @param request The request object containing all of the parameters for the API call. + * @throws com.google.api.gax.rpc.ApiException if the remote call fails + */ + public final Environment updateEnvironment(UpdateEnvironmentRequest request) { + return updateEnvironmentCallable().call(request); + } + + // AUTO-GENERATED DOCUMENTATION AND METHOD. + /** + * Updates the specified agent environment. + * + *

This method allows you to deploy new agent versions into the environment. When an + * environment is pointed to a new agent version by setting `environment.agent_version`, the + * environment is temporarily set to the `LOADING` state. During that time, the environment keeps + * on serving the previous version of the agent. After the new agent version is done loading, the + * environment is set back to the `RUNNING` state. You can use "-" as Environment ID in + * environment name to update version in "draft" environment. WARNING: this will negate all recent + * changes to draft and can't be undone. You may want to save the draft to a version before + * calling this function. + * + *

Sample code: + * + * 

{@code
+   * try (EnvironmentsClient environmentsClient = EnvironmentsClient.create()) {
+   *   UpdateEnvironmentRequest request =
+   *       UpdateEnvironmentRequest.newBuilder()
+   *           .setEnvironment(Environment.newBuilder().build())
+   *           .setUpdateMask(FieldMask.newBuilder().build())
+   *           .setAllowLoadToDraftAndDiscardChanges(true)
+   *           .build();
+   *   ApiFuture future =
+   *       environmentsClient.updateEnvironmentCallable().futureCall(request);
+   *   // Do something.
+   *   Environment response = future.get();
+   * }
+   * }
+ */ + public final UnaryCallable updateEnvironmentCallable() { + return stub.updateEnvironmentCallable(); + } + + // AUTO-GENERATED DOCUMENTATION AND METHOD. + /** + * Deletes the specified agent environment. + * + *

Sample code: + * + * 

{@code
+   * try (EnvironmentsClient environmentsClient = EnvironmentsClient.create()) {
+   *   DeleteEnvironmentRequest request =
+   *       DeleteEnvironmentRequest.newBuilder()
+   *           .setName(
+   *               EnvironmentName.ofProjectEnvironmentName("[PROJECT]", "[ENVIRONMENT]").toString())
+   *           .build();
+   *   environmentsClient.deleteEnvironment(request);
+   * }
+   * }
+ * + * @param request The request object containing all of the parameters for the API call. + * @throws com.google.api.gax.rpc.ApiException if the remote call fails + */ + public final void deleteEnvironment(DeleteEnvironmentRequest request) { + deleteEnvironmentCallable().call(request); + } + + // AUTO-GENERATED DOCUMENTATION AND METHOD. + /** + * Deletes the specified agent environment. + * + *

Sample code: + * + * 

{@code
+   * try (EnvironmentsClient environmentsClient = EnvironmentsClient.create()) {
+   *   DeleteEnvironmentRequest request =
+   *       DeleteEnvironmentRequest.newBuilder()
+   *           .setName(
+   *               EnvironmentName.ofProjectEnvironmentName("[PROJECT]", "[ENVIRONMENT]").toString())
+   *           .build();
+   *   ApiFuture future = environmentsClient.deleteEnvironmentCallable().futureCall(request);
+   *   // Do something.
+   *   future.get();
+   * }
+   * }
+ */ + public final UnaryCallable deleteEnvironmentCallable() { + return stub.deleteEnvironmentCallable(); + } + + // AUTO-GENERATED DOCUMENTATION AND METHOD. + /** + * Gets the history of the specified environment. + * + *

Sample code: + * + * 

{@code
+   * try (EnvironmentsClient environmentsClient = EnvironmentsClient.create()) {
+   *   GetEnvironmentHistoryRequest request =
+   *       GetEnvironmentHistoryRequest.newBuilder()
+   *           .setParent(
+   *               EnvironmentName.ofProjectEnvironmentName("[PROJECT]", "[ENVIRONMENT]").toString())
+   *           .setPageSize(883849137)
+   *           .setPageToken("pageToken873572522")
+   *           .build();
+   *   for (EnvironmentHistory.Entry element :
+   *       environmentsClient.getEnvironmentHistory(request).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * }
+ * + * @param request The request object containing all of the parameters for the API call. + * @throws com.google.api.gax.rpc.ApiException if the remote call fails + */ + public final GetEnvironmentHistoryPagedResponse getEnvironmentHistory( + GetEnvironmentHistoryRequest request) { + return getEnvironmentHistoryPagedCallable().call(request); + } + + // AUTO-GENERATED DOCUMENTATION AND METHOD. + /** + * Gets the history of the specified environment. + * + *

Sample code: + * + * 

{@code
+   * try (EnvironmentsClient environmentsClient = EnvironmentsClient.create()) {
+   *   GetEnvironmentHistoryRequest request =
+   *       GetEnvironmentHistoryRequest.newBuilder()
+   *           .setParent(
+   *               EnvironmentName.ofProjectEnvironmentName("[PROJECT]", "[ENVIRONMENT]").toString())
+   *           .setPageSize(883849137)
+   *           .setPageToken("pageToken873572522")
+   *           .build();
+   *   ApiFuture future =
+   *       environmentsClient.getEnvironmentHistoryPagedCallable().futureCall(request);
+   *   // Do something.
+   *   for (EnvironmentHistory.Entry element : future.get().iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * }
+ */ + public final UnaryCallable + getEnvironmentHistoryPagedCallable() { + return stub.getEnvironmentHistoryPagedCallable(); + } + + // AUTO-GENERATED DOCUMENTATION AND METHOD. + /** + * Gets the history of the specified environment. + * + *

Sample code: + * + * 

{@code
+   * try (EnvironmentsClient environmentsClient = EnvironmentsClient.create()) {
+   *   GetEnvironmentHistoryRequest request =
+   *       GetEnvironmentHistoryRequest.newBuilder()
+   *           .setParent(
+   *               EnvironmentName.ofProjectEnvironmentName("[PROJECT]", "[ENVIRONMENT]").toString())
+   *           .setPageSize(883849137)
+   *           .setPageToken("pageToken873572522")
+   *           .build();
+   *   while (true) {
+   *     EnvironmentHistory response =
+   *         environmentsClient.getEnvironmentHistoryCallable().call(request);
+   *     for (EnvironmentHistory.Entry element : response.getResponsesList()) {
+   *       // doThingsWith(element);
+   *     }
+   *     String nextPageToken = response.getNextPageToken();
+   *     if (!Strings.isNullOrEmpty(nextPageToken)) {
+   *       request = request.toBuilder().setPageToken(nextPageToken).build();
+   *     } else {
+   *       break;
+   *     }
+   *   }
+   * }
+   * }
+ */ + public final UnaryCallable + getEnvironmentHistoryCallable() { + return stub.getEnvironmentHistoryCallable(); + } + @Override public final void close() { stub.close(); @@ -409,4 +722,93 @@ protected ListEnvironmentsFixedSizeCollection createCollection( return new ListEnvironmentsFixedSizeCollection(pages, collectionSize); } } + + public static class GetEnvironmentHistoryPagedResponse + extends AbstractPagedListResponse< + GetEnvironmentHistoryRequest, + EnvironmentHistory, + EnvironmentHistory.Entry, + GetEnvironmentHistoryPage, + GetEnvironmentHistoryFixedSizeCollection> { + + public static ApiFuture createAsync( + PageContext + context, + ApiFuture futureResponse) { + ApiFuture futurePage = + GetEnvironmentHistoryPage.createEmptyPage().createPageAsync(context, futureResponse); + return ApiFutures.transform( + futurePage, + new ApiFunction() { + @Override + public GetEnvironmentHistoryPagedResponse apply(GetEnvironmentHistoryPage input) { + return new GetEnvironmentHistoryPagedResponse(input); + } + }, + MoreExecutors.directExecutor()); + } + + private GetEnvironmentHistoryPagedResponse(GetEnvironmentHistoryPage page) { + super(page, GetEnvironmentHistoryFixedSizeCollection.createEmptyCollection()); + } + } + + public static class GetEnvironmentHistoryPage + extends AbstractPage< + GetEnvironmentHistoryRequest, + EnvironmentHistory, + EnvironmentHistory.Entry, + GetEnvironmentHistoryPage> { + + private GetEnvironmentHistoryPage( + PageContext + context, + EnvironmentHistory response) { + super(context, response); + } + + private static GetEnvironmentHistoryPage createEmptyPage() { + return new GetEnvironmentHistoryPage(null, null); + } + + @Override + protected GetEnvironmentHistoryPage createPage( + PageContext + context, + EnvironmentHistory response) { + return new GetEnvironmentHistoryPage(context, response); + } + + @Override + public ApiFuture createPageAsync( + PageContext + context, + ApiFuture futureResponse) { + return super.createPageAsync(context, futureResponse); + } + } + + public static class GetEnvironmentHistoryFixedSizeCollection + extends AbstractFixedSizeCollection< + GetEnvironmentHistoryRequest, + EnvironmentHistory, + EnvironmentHistory.Entry, + GetEnvironmentHistoryPage, + GetEnvironmentHistoryFixedSizeCollection> { + + private GetEnvironmentHistoryFixedSizeCollection( + List pages, int collectionSize) { + super(pages, collectionSize); + } + + private static GetEnvironmentHistoryFixedSizeCollection createEmptyCollection() { + return new GetEnvironmentHistoryFixedSizeCollection(null, 0); + } + + @Override + protected GetEnvironmentHistoryFixedSizeCollection createCollection( + List pages, int collectionSize) { + return new GetEnvironmentHistoryFixedSizeCollection(pages, collectionSize); + } + } } diff --git a/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/EnvironmentsSettings.java b/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/EnvironmentsSettings.java index 64e61c0f3..c0f1d6b10 100644 --- a/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/EnvironmentsSettings.java +++ b/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/EnvironmentsSettings.java @@ -16,6 +16,7 @@ package com.google.cloud.dialogflow.v2beta1; +import static com.google.cloud.dialogflow.v2beta1.EnvironmentsClient.GetEnvironmentHistoryPagedResponse; import static com.google.cloud.dialogflow.v2beta1.EnvironmentsClient.ListEnvironmentsPagedResponse; import com.google.api.core.ApiFunction; @@ -30,6 +31,7 @@ import com.google.api.gax.rpc.TransportChannelProvider; import com.google.api.gax.rpc.UnaryCallSettings; import com.google.cloud.dialogflow.v2beta1.stub.EnvironmentsStubSettings; +import com.google.protobuf.Empty; import java.io.IOException; import java.util.List; import javax.annotation.Generated; @@ -49,15 +51,15 @@ *

The builder of this class is recursive, so contained classes are themselves builders. When * build() is called, the tree of builders is called to create the complete settings object. * - *

For example, to set the total timeout of listEnvironments to 30 seconds: + *

For example, to set the total timeout of getEnvironment to 30 seconds: * * 

{@code
  * EnvironmentsSettings.Builder environmentsSettingsBuilder = EnvironmentsSettings.newBuilder();
  * environmentsSettingsBuilder
- *     .listEnvironmentsSettings()
+ *     .getEnvironmentSettings()
  *     .setRetrySettings(
  *         environmentsSettingsBuilder
- *             .listEnvironmentsSettings()
+ *             .getEnvironmentSettings()
  *             .getRetrySettings()
  *             .toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
@@ -76,6 +78,33 @@ public class EnvironmentsSettings extends ClientSettings {
     return ((EnvironmentsStubSettings) getStubSettings()).listEnvironmentsSettings();
   }
 
+  /** Returns the object with the settings used for calls to getEnvironment. */
+  public UnaryCallSettings getEnvironmentSettings() {
+    return ((EnvironmentsStubSettings) getStubSettings()).getEnvironmentSettings();
+  }
+
+  /** Returns the object with the settings used for calls to createEnvironment. */
+  public UnaryCallSettings createEnvironmentSettings() {
+    return ((EnvironmentsStubSettings) getStubSettings()).createEnvironmentSettings();
+  }
+
+  /** Returns the object with the settings used for calls to updateEnvironment. */
+  public UnaryCallSettings updateEnvironmentSettings() {
+    return ((EnvironmentsStubSettings) getStubSettings()).updateEnvironmentSettings();
+  }
+
+  /** Returns the object with the settings used for calls to deleteEnvironment. */
+  public UnaryCallSettings deleteEnvironmentSettings() {
+    return ((EnvironmentsStubSettings) getStubSettings()).deleteEnvironmentSettings();
+  }
+
+  /** Returns the object with the settings used for calls to getEnvironmentHistory. */
+  public PagedCallSettings<
+          GetEnvironmentHistoryRequest, EnvironmentHistory, GetEnvironmentHistoryPagedResponse>
+      getEnvironmentHistorySettings() {
+    return ((EnvironmentsStubSettings) getStubSettings()).getEnvironmentHistorySettings();
+  }
+
   public static final EnvironmentsSettings create(EnvironmentsStubSettings stub)
       throws IOException {
     return new EnvironmentsSettings.Builder(stub.toBuilder()).build();
@@ -181,6 +210,35 @@ public Builder applyToAllUnaryMethods(
       return getStubSettingsBuilder().listEnvironmentsSettings();
     }
 
+    /** Returns the builder for the settings used for calls to getEnvironment. */
+    public UnaryCallSettings.Builder getEnvironmentSettings() {
+      return getStubSettingsBuilder().getEnvironmentSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to createEnvironment. */
+    public UnaryCallSettings.Builder
+        createEnvironmentSettings() {
+      return getStubSettingsBuilder().createEnvironmentSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to updateEnvironment. */
+    public UnaryCallSettings.Builder
+        updateEnvironmentSettings() {
+      return getStubSettingsBuilder().updateEnvironmentSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to deleteEnvironment. */
+    public UnaryCallSettings.Builder deleteEnvironmentSettings() {
+      return getStubSettingsBuilder().deleteEnvironmentSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to getEnvironmentHistory. */
+    public PagedCallSettings.Builder<
+            GetEnvironmentHistoryRequest, EnvironmentHistory, GetEnvironmentHistoryPagedResponse>
+        getEnvironmentHistorySettings() {
+      return getStubSettingsBuilder().getEnvironmentHistorySettings();
+    }
+
     @Override
     public EnvironmentsSettings build() throws IOException {
       return new EnvironmentsSettings(this);
diff --git a/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/FulfillmentsClient.java b/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/FulfillmentsClient.java
new file mode 100644
index 000000000..63aa60db4
--- /dev/null
+++ b/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/FulfillmentsClient.java
@@ -0,0 +1,341 @@
+/*
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.dialogflow.v2beta1;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.BackgroundResource;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.v2beta1.stub.FulfillmentsStub;
+import com.google.cloud.dialogflow.v2beta1.stub.FulfillmentsStubSettings;
+import com.google.protobuf.FieldMask;
+import java.io.IOException;
+import java.util.concurrent.TimeUnit;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS.
+/**
+ * Service Description: Service for managing
+ * [Fulfillments][google.cloud.dialogflow.v2beta1.Fulfillment].
+ *
+ * 
This class provides the ability to make remote calls to the backing service through method
+ * calls that map to API methods. Sample code to get started:
+ *
+ * 
{@code
+ * try (FulfillmentsClient fulfillmentsClient = FulfillmentsClient.create()) {
+ *   FulfillmentName name = FulfillmentName.ofProjectName("[PROJECT]");
+ *   Fulfillment response = fulfillmentsClient.getFulfillment(name);
+ * }
+ * }

+ *
+ * 
Note: close() needs to be called on the FulfillmentsClient object to clean up resources such
+ * as threads. In the example above, try-with-resources is used, which automatically calls close().
+ *
+ * 
The surface of this class includes several types of Java methods for each of the API's
+ * methods:
+ *
+ * 
    
+ *   
  1. A "flattened" method. With this type of method, the fields of the request type have been
+ *       converted into function parameters. It may be the case that not all fields are available as
+ *       parameters, and not every API method will have a flattened method entry point.
+ *   
  2. A "request object" method. This type of method only takes one parameter, a request object,
+ *       which must be constructed before the call. Not every API method will have a request object
+ *       method.
+ *   
  3. A "callable" method. This type of method takes no parameters and returns an immutable API
+ *       callable object, which can be used to initiate calls to the service.
+ * 

+ *
+ * 
See the individual methods for example code.
+ *
+ * 
Many parameters require resource names to be formatted in a particular way. To assist with
+ * these names, this class includes a format method for each type of name, and additionally a parse
+ * method to extract the individual identifiers contained within names that are returned.
+ *
+ * 
This class can be customized by passing in a custom instance of FulfillmentsSettings to
+ * create(). For example:
+ *
+ * 
To customize credentials:
+ *
+ * 
{@code
+ * FulfillmentsSettings fulfillmentsSettings =
+ *     FulfillmentsSettings.newBuilder()
+ *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
+ *         .build();
+ * FulfillmentsClient fulfillmentsClient = FulfillmentsClient.create(fulfillmentsSettings);
+ * }

+ *
+ * 
To customize the endpoint:
+ *
+ * 
{@code
+ * FulfillmentsSettings fulfillmentsSettings =
+ *     FulfillmentsSettings.newBuilder().setEndpoint(myEndpoint).build();
+ * FulfillmentsClient fulfillmentsClient = FulfillmentsClient.create(fulfillmentsSettings);
+ * }

+ *
+ * 
Please refer to the GitHub repository's samples for more quickstart code snippets.
+ */
+@BetaApi
+@Generated("by gapic-generator-java")
+public class FulfillmentsClient implements BackgroundResource {
+  private final FulfillmentsSettings settings;
+  private final FulfillmentsStub stub;
+
+  /** Constructs an instance of FulfillmentsClient with default settings. */
+  public static final FulfillmentsClient create() throws IOException {
+    return create(FulfillmentsSettings.newBuilder().build());
+  }
+
+  /**
+   * Constructs an instance of FulfillmentsClient, using the given settings. The channels are
+   * created based on the settings passed in, or defaults for any settings that are not set.
+   */
+  public static final FulfillmentsClient create(FulfillmentsSettings settings) throws IOException {
+    return new FulfillmentsClient(settings);
+  }
+
+  /**
+   * Constructs an instance of FulfillmentsClient, using the given stub for making calls. This is
+   * for advanced usage - prefer using create(FulfillmentsSettings).
+   */
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  public static final FulfillmentsClient create(FulfillmentsStub stub) {
+    return new FulfillmentsClient(stub);
+  }
+
+  /**
+   * Constructs an instance of FulfillmentsClient, using the given settings. This is protected so
+   * that it is easy to make a subclass, but otherwise, the static factory methods should be
+   * preferred.
+   */
+  protected FulfillmentsClient(FulfillmentsSettings settings) throws IOException {
+    this.settings = settings;
+    this.stub = ((FulfillmentsStubSettings) settings.getStubSettings()).createStub();
+  }
+
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  protected FulfillmentsClient(FulfillmentsStub stub) {
+    this.settings = null;
+    this.stub = stub;
+  }
+
+  public final FulfillmentsSettings getSettings() {
+    return settings;
+  }
+
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  public FulfillmentsStub getStub() {
+    return stub;
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Retrieves the fulfillment.
+   *
+   * 
Sample code:
+   *
+   * 
{@code
+   * try (FulfillmentsClient fulfillmentsClient = FulfillmentsClient.create()) {
+   *   FulfillmentName name = FulfillmentName.ofProjectName("[PROJECT]");
+   *   Fulfillment response = fulfillmentsClient.getFulfillment(name);
+   * }
+   * }

+   *
+   * @param name Required. The name of the fulfillment. Supported formats: - `projects/<Project
+   *     ID>/agent/fulfillment` - `projects/<Project ID>/locations/<Location
+   *     ID>/agent/fulfillment`
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Fulfillment getFulfillment(FulfillmentName name) {
+    GetFulfillmentRequest request =
+        GetFulfillmentRequest.newBuilder().setName(name == null ? null : name.toString()).build();
+    return getFulfillment(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Retrieves the fulfillment.
+   *
+   * 
Sample code:
+   *
+   * 
{@code
+   * try (FulfillmentsClient fulfillmentsClient = FulfillmentsClient.create()) {
+   *   String name = FulfillmentName.ofProjectName("[PROJECT]").toString();
+   *   Fulfillment response = fulfillmentsClient.getFulfillment(name);
+   * }
+   * }

+   *
+   * @param name Required. The name of the fulfillment. Supported formats: - `projects/<Project
+   *     ID>/agent/fulfillment` - `projects/<Project ID>/locations/<Location
+   *     ID>/agent/fulfillment`
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Fulfillment getFulfillment(String name) {
+    GetFulfillmentRequest request = GetFulfillmentRequest.newBuilder().setName(name).build();
+    return getFulfillment(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Retrieves the fulfillment.
+   *
+   * 
Sample code:
+   *
+   * 
{@code
+   * try (FulfillmentsClient fulfillmentsClient = FulfillmentsClient.create()) {
+   *   GetFulfillmentRequest request =
+   *       GetFulfillmentRequest.newBuilder()
+   *           .setName(FulfillmentName.ofProjectName("[PROJECT]").toString())
+   *           .build();
+   *   Fulfillment response = fulfillmentsClient.getFulfillment(request);
+   * }
+   * }

+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Fulfillment getFulfillment(GetFulfillmentRequest request) {
+    return getFulfillmentCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Retrieves the fulfillment.
+   *
+   * 
Sample code:
+   *
+   * 
{@code
+   * try (FulfillmentsClient fulfillmentsClient = FulfillmentsClient.create()) {
+   *   GetFulfillmentRequest request =
+   *       GetFulfillmentRequest.newBuilder()
+   *           .setName(FulfillmentName.ofProjectName("[PROJECT]").toString())
+   *           .build();
+   *   ApiFuture future =
+   *       fulfillmentsClient.getFulfillmentCallable().futureCall(request);
+   *   // Do something.
+   *   Fulfillment response = future.get();
+   * }
+   * }

+   */
+  public final UnaryCallable getFulfillmentCallable() {
+    return stub.getFulfillmentCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Updates the fulfillment.
+   *
+   * 
Sample code:
+   *
+   * 
{@code
+   * try (FulfillmentsClient fulfillmentsClient = FulfillmentsClient.create()) {
+   *   Fulfillment fulfillment = Fulfillment.newBuilder().build();
+   *   FieldMask updateMask = FieldMask.newBuilder().build();
+   *   Fulfillment response = fulfillmentsClient.updateFulfillment(fulfillment, updateMask);
+   * }
+   * }

+   *
+   * @param fulfillment Required. The fulfillment to update.
+   * @param updateMask Required. The mask to control which fields get updated. If the mask is not
+   *     present, all fields will be updated.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Fulfillment updateFulfillment(Fulfillment fulfillment, FieldMask updateMask) {
+    UpdateFulfillmentRequest request =
+        UpdateFulfillmentRequest.newBuilder()
+            .setFulfillment(fulfillment)
+            .setUpdateMask(updateMask)
+            .build();
+    return updateFulfillment(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Updates the fulfillment.
+   *
+   * 
Sample code:
+   *
+   * 
{@code
+   * try (FulfillmentsClient fulfillmentsClient = FulfillmentsClient.create()) {
+   *   UpdateFulfillmentRequest request =
+   *       UpdateFulfillmentRequest.newBuilder()
+   *           .setFulfillment(Fulfillment.newBuilder().build())
+   *           .setUpdateMask(FieldMask.newBuilder().build())
+   *           .build();
+   *   Fulfillment response = fulfillmentsClient.updateFulfillment(request);
+   * }
+   * }

+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Fulfillment updateFulfillment(UpdateFulfillmentRequest request) {
+    return updateFulfillmentCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Updates the fulfillment.
+   *
+   * 
Sample code:
+   *
+   * 
{@code
+   * try (FulfillmentsClient fulfillmentsClient = FulfillmentsClient.create()) {
+   *   UpdateFulfillmentRequest request =
+   *       UpdateFulfillmentRequest.newBuilder()
+   *           .setFulfillment(Fulfillment.newBuilder().build())
+   *           .setUpdateMask(FieldMask.newBuilder().build())
+   *           .build();
+   *   ApiFuture future =
+   *       fulfillmentsClient.updateFulfillmentCallable().futureCall(request);
+   *   // Do something.
+   *   Fulfillment response = future.get();
+   * }
+   * }

+   */
+  public final UnaryCallable updateFulfillmentCallable() {
+    return stub.updateFulfillmentCallable();
+  }
+
+  @Override
+  public final void close() {
+    stub.close();
+  }
+
+  @Override
+  public void shutdown() {
+    stub.shutdown();
+  }
+
+  @Override
+  public boolean isShutdown() {
+    return stub.isShutdown();
+  }
+
+  @Override
+  public boolean isTerminated() {
+    return stub.isTerminated();
+  }
+
+  @Override
+  public void shutdownNow() {
+    stub.shutdownNow();
+  }
+
+  @Override
+  public boolean awaitTermination(long duration, TimeUnit unit) throws InterruptedException {
+    return stub.awaitTermination(duration, unit);
+  }
+}
diff --git a/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/FulfillmentsSettings.java b/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/FulfillmentsSettings.java
new file mode 100644
index 000000000..2cc966cc8
--- /dev/null
+++ b/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/FulfillmentsSettings.java
@@ -0,0 +1,193 @@
+/*
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.dialogflow.v2beta1;
+
+import com.google.api.core.ApiFunction;
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.GoogleCredentialsProvider;
+import com.google.api.gax.core.InstantiatingExecutorProvider;
+import com.google.api.gax.grpc.InstantiatingGrpcChannelProvider;
+import com.google.api.gax.rpc.ApiClientHeaderProvider;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.ClientSettings;
+import com.google.api.gax.rpc.TransportChannelProvider;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.cloud.dialogflow.v2beta1.stub.FulfillmentsStubSettings;
+import java.io.IOException;
+import java.util.List;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS.
+/**
+ * Settings class to configure an instance of {@link FulfillmentsClient}.
+ *
+ * 
The default instance has everything set to sensible defaults:
+ *
+ * 
    
+ *   
  • The default service address (dialogflow.googleapis.com) and default port (443) are used.
+ *   
  • Credentials are acquired automatically through Application Default Credentials.
+ *   
  • Retries are configured for idempotent methods but not for non-idempotent methods.
+ * 

+ *
+ * 
The builder of this class is recursive, so contained classes are themselves builders. When
+ * build() is called, the tree of builders is called to create the complete settings object.
+ *
+ * 
For example, to set the total timeout of getFulfillment to 30 seconds:
+ *
+ * 
{@code
+ * FulfillmentsSettings.Builder fulfillmentsSettingsBuilder = FulfillmentsSettings.newBuilder();
+ * fulfillmentsSettingsBuilder
+ *     .getFulfillmentSettings()
+ *     .setRetrySettings(
+ *         fulfillmentsSettingsBuilder
+ *             .getFulfillmentSettings()
+ *             .getRetrySettings()
+ *             .toBuilder()
+ *             .setTotalTimeout(Duration.ofSeconds(30))
+ *             .build());
+ * FulfillmentsSettings fulfillmentsSettings = fulfillmentsSettingsBuilder.build();
+ * }

+ */
+@BetaApi
+@Generated("by gapic-generator-java")
+public class FulfillmentsSettings extends ClientSettings {
+
+  /** Returns the object with the settings used for calls to getFulfillment. */
+  public UnaryCallSettings getFulfillmentSettings() {
+    return ((FulfillmentsStubSettings) getStubSettings()).getFulfillmentSettings();
+  }
+
+  /** Returns the object with the settings used for calls to updateFulfillment. */
+  public UnaryCallSettings updateFulfillmentSettings() {
+    return ((FulfillmentsStubSettings) getStubSettings()).updateFulfillmentSettings();
+  }
+
+  public static final FulfillmentsSettings create(FulfillmentsStubSettings stub)
+      throws IOException {
+    return new FulfillmentsSettings.Builder(stub.toBuilder()).build();
+  }
+
+  /** Returns a builder for the default ExecutorProvider for this service. */
+  public static InstantiatingExecutorProvider.Builder defaultExecutorProviderBuilder() {
+    return FulfillmentsStubSettings.defaultExecutorProviderBuilder();
+  }
+
+  /** Returns the default service endpoint. */
+  public static String getDefaultEndpoint() {
+    return FulfillmentsStubSettings.getDefaultEndpoint();
+  }
+
+  /** Returns the default service scopes. */
+  public static List getDefaultServiceScopes() {
+    return FulfillmentsStubSettings.getDefaultServiceScopes();
+  }
+
+  /** Returns a builder for the default credentials for this service. */
+  public static GoogleCredentialsProvider.Builder defaultCredentialsProviderBuilder() {
+    return FulfillmentsStubSettings.defaultCredentialsProviderBuilder();
+  }
+
+  /** Returns a builder for the default ChannelProvider for this service. */
+  public static InstantiatingGrpcChannelProvider.Builder defaultGrpcTransportProviderBuilder() {
+    return FulfillmentsStubSettings.defaultGrpcTransportProviderBuilder();
+  }
+
+  public static TransportChannelProvider defaultTransportChannelProvider() {
+    return FulfillmentsStubSettings.defaultTransportChannelProvider();
+  }
+
+  @BetaApi("The surface for customizing headers is not stable yet and may change in the future.")
+  public static ApiClientHeaderProvider.Builder defaultApiClientHeaderProviderBuilder() {
+    return FulfillmentsStubSettings.defaultApiClientHeaderProviderBuilder();
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder() {
+    return Builder.createDefault();
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder(ClientContext clientContext) {
+    return new Builder(clientContext);
+  }
+
+  /** Returns a builder containing all the values of this settings class. */
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  protected FulfillmentsSettings(Builder settingsBuilder) throws IOException {
+    super(settingsBuilder);
+  }
+
+  /** Builder for FulfillmentsSettings. */
+  public static class Builder extends ClientSettings.Builder {
+
+    protected Builder() throws IOException {
+      this(((ClientContext) null));
+    }
+
+    protected Builder(ClientContext clientContext) {
+      super(FulfillmentsStubSettings.newBuilder(clientContext));
+    }
+
+    protected Builder(FulfillmentsSettings settings) {
+      super(settings.getStubSettings().toBuilder());
+    }
+
+    protected Builder(FulfillmentsStubSettings.Builder stubSettings) {
+      super(stubSettings);
+    }
+
+    private static Builder createDefault() {
+      return new Builder(FulfillmentsStubSettings.newBuilder());
+    }
+
+    public FulfillmentsStubSettings.Builder getStubSettingsBuilder() {
+      return ((FulfillmentsStubSettings.Builder) getStubSettings());
+    }
+
+    // NEXT_MAJOR_VER: remove 'throws Exception'.
+    /**
+     * Applies the given settings updater function to all of the unary API methods in this service.
+     *
+     * 
Note: This method does not support applying settings to streaming methods.
+     */
+    public Builder applyToAllUnaryMethods(
+        ApiFunction, Void> settingsUpdater) throws Exception {
+      super.applyToAllUnaryMethods(
+          getStubSettingsBuilder().unaryMethodSettingsBuilders(), settingsUpdater);
+      return this;
+    }
+
+    /** Returns the builder for the settings used for calls to getFulfillment. */
+    public UnaryCallSettings.Builder getFulfillmentSettings() {
+      return getStubSettingsBuilder().getFulfillmentSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to updateFulfillment. */
+    public UnaryCallSettings.Builder
+        updateFulfillmentSettings() {
+      return getStubSettingsBuilder().updateFulfillmentSettings();
+    }
+
+    @Override
+    public FulfillmentsSettings build() throws IOException {
+      return new FulfillmentsSettings(this);
+    }
+  }
+}
diff --git a/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/ParticipantsClient.java b/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/ParticipantsClient.java
index 8aef6bfd5..344a33015 100644
--- a/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/ParticipantsClient.java
+++ b/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/ParticipantsClient.java
@@ -606,7 +606,7 @@ public final UnaryCallable updateParticip
    * participant into the conversation.
    *
    * 
Note: Always use agent versions for production traffic sent to virtual agents. See [Versions
-   * and environments(https://cloud.google.com/dialogflow/es/docs/agents-versions).
+   * and environments](https://cloud.google.com/dialogflow/es/docs/agents-versions).
    *
    * 
Sample code:
    *
@@ -642,7 +642,7 @@ public final AnalyzeContentResponse analyzeContent(
    * participant into the conversation.
    *
    * 
Note: Always use agent versions for production traffic sent to virtual agents. See [Versions
-   * and environments(https://cloud.google.com/dialogflow/es/docs/agents-versions).
+   * and environments](https://cloud.google.com/dialogflow/es/docs/agents-versions).
    *
    * 
Sample code:
    *
@@ -678,7 +678,7 @@ public final AnalyzeContentResponse analyzeContent(
    * participant into the conversation.
    *
    * 
Note: Always use agent versions for production traffic sent to virtual agents. See [Versions
-   * and environments(https://cloud.google.com/dialogflow/es/docs/agents-versions).
+   * and environments](https://cloud.google.com/dialogflow/es/docs/agents-versions).
    *
    * 
Sample code:
    *
@@ -714,7 +714,7 @@ public final AnalyzeContentResponse analyzeContent(String participant, EventInpu
    * participant into the conversation.
    *
    * 
Note: Always use agent versions for production traffic sent to virtual agents. See [Versions
-   * and environments(https://cloud.google.com/dialogflow/es/docs/agents-versions).
+   * and environments](https://cloud.google.com/dialogflow/es/docs/agents-versions).
    *
    * 
Sample code:
    *
@@ -750,7 +750,7 @@ public final AnalyzeContentResponse analyzeContent(String participant, TextInput
    * participant into the conversation.
    *
    * 
Note: Always use agent versions for production traffic sent to virtual agents. See [Versions
-   * and environments(https://cloud.google.com/dialogflow/es/docs/agents-versions).
+   * and environments](https://cloud.google.com/dialogflow/es/docs/agents-versions).
    *
    * 
Sample code:
    *
@@ -784,7 +784,7 @@ public final AnalyzeContentResponse analyzeContent(AnalyzeContentRequest request
    * participant into the conversation.
    *
    * 
Note: Always use agent versions for production traffic sent to virtual agents. See [Versions
-   * and environments(https://cloud.google.com/dialogflow/es/docs/agents-versions).
+   * and environments](https://cloud.google.com/dialogflow/es/docs/agents-versions).
    *
    * 
Sample code:
    *
@@ -1199,12 +1199,12 @@ public final SuggestSmartRepliesResponse suggestSmartReplies(SuggestSmartReplies
    * 
This method should be used by human agent client software to fetch auto generated
    * suggestions in real-time, while the conversation with an end user is in progress. The
    * functionality is implemented in terms of the [list
-   * pagination](https://cloud.google.com/apis/design/design_patterns#list_pagination) design
-   * pattern. The client app should use the `next_page_token` field to fetch the next batch of
-   * suggestions. `suggestions` are sorted by `create_time` in descending order. To fetch latest
-   * suggestion, just set `page_size` to 1. To fetch new suggestions without duplication, send
-   * request with filter `create_time_epoch_microseconds > [first item's create_time of previous
-   * request]` and empty page_token.
+   * pagination](/apis/design/design_patterns#list_pagination) design pattern. The client app should
+   * use the `next_page_token` field to fetch the next batch of suggestions. `suggestions` are
+   * sorted by `create_time` in descending order. To fetch latest suggestion, just set `page_size`
+   * to 1. To fetch new suggestions without duplication, send request with filter
+   * `create_time_epoch_microseconds > [first item's create_time of previous request]` and empty
+   * page_token.
    *
    * 
Sample code:
    *
@@ -1243,12 +1243,12 @@ public final ListSuggestionsPagedResponse listSuggestions(ListSuggestionsRequest
    * 
This method should be used by human agent client software to fetch auto generated
    * suggestions in real-time, while the conversation with an end user is in progress. The
    * functionality is implemented in terms of the [list
-   * pagination](https://cloud.google.com/apis/design/design_patterns#list_pagination) design
-   * pattern. The client app should use the `next_page_token` field to fetch the next batch of
-   * suggestions. `suggestions` are sorted by `create_time` in descending order. To fetch latest
-   * suggestion, just set `page_size` to 1. To fetch new suggestions without duplication, send
-   * request with filter `create_time_epoch_microseconds > [first item's create_time of previous
-   * request]` and empty page_token.
+   * pagination](/apis/design/design_patterns#list_pagination) design pattern. The client app should
+   * use the `next_page_token` field to fetch the next batch of suggestions. `suggestions` are
+   * sorted by `create_time` in descending order. To fetch latest suggestion, just set `page_size`
+   * to 1. To fetch new suggestions without duplication, send request with filter
+   * `create_time_epoch_microseconds > [first item's create_time of previous request]` and empty
+   * page_token.
    *
    * 
Sample code:
    *
@@ -1289,12 +1289,12 @@ public final ListSuggestionsPagedResponse listSuggestions(ListSuggestionsRequest
    * 
This method should be used by human agent client software to fetch auto generated
    * suggestions in real-time, while the conversation with an end user is in progress. The
    * functionality is implemented in terms of the [list
-   * pagination](https://cloud.google.com/apis/design/design_patterns#list_pagination) design
-   * pattern. The client app should use the `next_page_token` field to fetch the next batch of
-   * suggestions. `suggestions` are sorted by `create_time` in descending order. To fetch latest
-   * suggestion, just set `page_size` to 1. To fetch new suggestions without duplication, send
-   * request with filter `create_time_epoch_microseconds > [first item's create_time of previous
-   * request]` and empty page_token.
+   * pagination](/apis/design/design_patterns#list_pagination) design pattern. The client app should
+   * use the `next_page_token` field to fetch the next batch of suggestions. `suggestions` are
+   * sorted by `create_time` in descending order. To fetch latest suggestion, just set `page_size`
+   * to 1. To fetch new suggestions without duplication, send request with filter
+   * `create_time_epoch_microseconds > [first item's create_time of previous request]` and empty
+   * page_token.
    *
    * 
Sample code:
    *
diff --git a/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/VersionsClient.java b/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/VersionsClient.java
new file mode 100644
index 000000000..e6fcec793
--- /dev/null
+++ b/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/VersionsClient.java
@@ -0,0 +1,776 @@
+/*
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.dialogflow.v2beta1;
+
+import com.google.api.core.ApiFunction;
+import com.google.api.core.ApiFuture;
+import com.google.api.core.ApiFutures;
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.BackgroundResource;
+import com.google.api.gax.paging.AbstractFixedSizeCollection;
+import com.google.api.gax.paging.AbstractPage;
+import com.google.api.gax.paging.AbstractPagedListResponse;
+import com.google.api.gax.rpc.PageContext;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.v2beta1.stub.VersionsStub;
+import com.google.cloud.dialogflow.v2beta1.stub.VersionsStubSettings;
+import com.google.common.util.concurrent.MoreExecutors;
+import com.google.protobuf.Empty;
+import com.google.protobuf.FieldMask;
+import java.io.IOException;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS.
+/**
+ * Service Description: Service for managing [Versions][google.cloud.dialogflow.v2beta1.Version].
+ *
+ * 
This class provides the ability to make remote calls to the backing service through method
+ * calls that map to API methods. Sample code to get started:
+ *
+ * 
{@code
+ * try (VersionsClient versionsClient = VersionsClient.create()) {
+ *   VersionName name = VersionName.ofProjectVersionName("[PROJECT]", "[VERSION]");
+ *   Version response = versionsClient.getVersion(name);
+ * }
+ * }

+ *
+ * 
Note: close() needs to be called on the VersionsClient object to clean up resources such as
+ * threads. In the example above, try-with-resources is used, which automatically calls close().
+ *
+ * 
The surface of this class includes several types of Java methods for each of the API's
+ * methods:
+ *
+ * 
    
+ *   
  1. A "flattened" method. With this type of method, the fields of the request type have been
+ *       converted into function parameters. It may be the case that not all fields are available as
+ *       parameters, and not every API method will have a flattened method entry point.
+ *   
  2. A "request object" method. This type of method only takes one parameter, a request object,
+ *       which must be constructed before the call. Not every API method will have a request object
+ *       method.
+ *   
  3. A "callable" method. This type of method takes no parameters and returns an immutable API
+ *       callable object, which can be used to initiate calls to the service.
+ * 

+ *
+ * 
See the individual methods for example code.
+ *
+ * 
Many parameters require resource names to be formatted in a particular way. To assist with
+ * these names, this class includes a format method for each type of name, and additionally a parse
+ * method to extract the individual identifiers contained within names that are returned.
+ *
+ * 
This class can be customized by passing in a custom instance of VersionsSettings to create().
+ * For example:
+ *
+ * 
To customize credentials:
+ *
+ * 
{@code
+ * VersionsSettings versionsSettings =
+ *     VersionsSettings.newBuilder()
+ *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
+ *         .build();
+ * VersionsClient versionsClient = VersionsClient.create(versionsSettings);
+ * }

+ *
+ * 
To customize the endpoint:
+ *
+ * 
{@code
+ * VersionsSettings versionsSettings =
+ *     VersionsSettings.newBuilder().setEndpoint(myEndpoint).build();
+ * VersionsClient versionsClient = VersionsClient.create(versionsSettings);
+ * }

+ *
+ * 
Please refer to the GitHub repository's samples for more quickstart code snippets.
+ */
+@BetaApi
+@Generated("by gapic-generator-java")
+public class VersionsClient implements BackgroundResource {
+  private final VersionsSettings settings;
+  private final VersionsStub stub;
+
+  /** Constructs an instance of VersionsClient with default settings. */
+  public static final VersionsClient create() throws IOException {
+    return create(VersionsSettings.newBuilder().build());
+  }
+
+  /**
+   * Constructs an instance of VersionsClient, using the given settings. The channels are created
+   * based on the settings passed in, or defaults for any settings that are not set.
+   */
+  public static final VersionsClient create(VersionsSettings settings) throws IOException {
+    return new VersionsClient(settings);
+  }
+
+  /**
+   * Constructs an instance of VersionsClient, using the given stub for making calls. This is for
+   * advanced usage - prefer using create(VersionsSettings).
+   */
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  public static final VersionsClient create(VersionsStub stub) {
+    return new VersionsClient(stub);
+  }
+
+  /**
+   * Constructs an instance of VersionsClient, using the given settings. This is protected so that
+   * it is easy to make a subclass, but otherwise, the static factory methods should be preferred.
+   */
+  protected VersionsClient(VersionsSettings settings) throws IOException {
+    this.settings = settings;
+    this.stub = ((VersionsStubSettings) settings.getStubSettings()).createStub();
+  }
+
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  protected VersionsClient(VersionsStub stub) {
+    this.settings = null;
+    this.stub = stub;
+  }
+
+  public final VersionsSettings getSettings() {
+    return settings;
+  }
+
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  public VersionsStub getStub() {
+    return stub;
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Returns the list of all versions of the specified agent.
+   *
+   * 
Sample code:
+   *
+   * 
{@code
+   * try (VersionsClient versionsClient = VersionsClient.create()) {
+   *   AgentName parent = AgentName.ofProjectName("[PROJECT]");
+   *   for (Version element : versionsClient.listVersions(parent).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * }

+   *
+   * @param parent Required. The agent to list all versions from. Supported formats: -
+   *     `projects/<Project ID>/agent` - `projects/<Project ID>/locations/<Location
+   *     ID>/agent`
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListVersionsPagedResponse listVersions(AgentName parent) {
+    ListVersionsRequest request =
+        ListVersionsRequest.newBuilder()
+            .setParent(parent == null ? null : parent.toString())
+            .build();
+    return listVersions(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Returns the list of all versions of the specified agent.
+   *
+   * 
Sample code:
+   *
+   * 
{@code
+   * try (VersionsClient versionsClient = VersionsClient.create()) {
+   *   String parent = VersionName.ofProjectVersionName("[PROJECT]", "[VERSION]").toString();
+   *   for (Version element : versionsClient.listVersions(parent).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * }

+   *
+   * @param parent Required. The agent to list all versions from. Supported formats: -
+   *     `projects/<Project ID>/agent` - `projects/<Project ID>/locations/<Location
+   *     ID>/agent`
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListVersionsPagedResponse listVersions(String parent) {
+    ListVersionsRequest request = ListVersionsRequest.newBuilder().setParent(parent).build();
+    return listVersions(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Returns the list of all versions of the specified agent.
+   *
+   * 
Sample code:
+   *
+   * 
{@code
+   * try (VersionsClient versionsClient = VersionsClient.create()) {
+   *   ListVersionsRequest request =
+   *       ListVersionsRequest.newBuilder()
+   *           .setParent(VersionName.ofProjectVersionName("[PROJECT]", "[VERSION]").toString())
+   *           .setPageSize(883849137)
+   *           .setPageToken("pageToken873572522")
+   *           .build();
+   *   for (Version element : versionsClient.listVersions(request).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * }

+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListVersionsPagedResponse listVersions(ListVersionsRequest request) {
+    return listVersionsPagedCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Returns the list of all versions of the specified agent.
+   *
+   * 
Sample code:
+   *
+   * 
{@code
+   * try (VersionsClient versionsClient = VersionsClient.create()) {
+   *   ListVersionsRequest request =
+   *       ListVersionsRequest.newBuilder()
+   *           .setParent(VersionName.ofProjectVersionName("[PROJECT]", "[VERSION]").toString())
+   *           .setPageSize(883849137)
+   *           .setPageToken("pageToken873572522")
+   *           .build();
+   *   ApiFuture future = versionsClient.listVersionsPagedCallable().futureCall(request);
+   *   // Do something.
+   *   for (Version element : future.get().iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * }

+   */
+  public final UnaryCallable
+      listVersionsPagedCallable() {
+    return stub.listVersionsPagedCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Returns the list of all versions of the specified agent.
+   *
+   * 
Sample code:
+   *
+   * 
{@code
+   * try (VersionsClient versionsClient = VersionsClient.create()) {
+   *   ListVersionsRequest request =
+   *       ListVersionsRequest.newBuilder()
+   *           .setParent(VersionName.ofProjectVersionName("[PROJECT]", "[VERSION]").toString())
+   *           .setPageSize(883849137)
+   *           .setPageToken("pageToken873572522")
+   *           .build();
+   *   while (true) {
+   *     ListVersionsResponse response = versionsClient.listVersionsCallable().call(request);
+   *     for (Version element : response.getResponsesList()) {
+   *       // doThingsWith(element);
+   *     }
+   *     String nextPageToken = response.getNextPageToken();
+   *     if (!Strings.isNullOrEmpty(nextPageToken)) {
+   *       request = request.toBuilder().setPageToken(nextPageToken).build();
+   *     } else {
+   *       break;
+   *     }
+   *   }
+   * }
+   * }

+   */
+  public final UnaryCallable listVersionsCallable() {
+    return stub.listVersionsCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Retrieves the specified agent version.
+   *
+   * 
Sample code:
+   *
+   * 
{@code
+   * try (VersionsClient versionsClient = VersionsClient.create()) {
+   *   VersionName name = VersionName.ofProjectVersionName("[PROJECT]", "[VERSION]");
+   *   Version response = versionsClient.getVersion(name);
+   * }
+   * }

+   *
+   * @param name Required. The name of the version. Supported formats: - `projects/<Project
+   *     ID>/agent/versions/<Version ID>` - `projects/<Project
+   *     ID>/locations/<Location ID>/agent/versions/<Version ID>`
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Version getVersion(VersionName name) {
+    GetVersionRequest request =
+        GetVersionRequest.newBuilder().setName(name == null ? null : name.toString()).build();
+    return getVersion(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Retrieves the specified agent version.
+   *
+   * 
Sample code:
+   *
+   * 
{@code
+   * try (VersionsClient versionsClient = VersionsClient.create()) {
+   *   String name = VersionName.ofProjectVersionName("[PROJECT]", "[VERSION]").toString();
+   *   Version response = versionsClient.getVersion(name);
+   * }
+   * }

+   *
+   * @param name Required. The name of the version. Supported formats: - `projects/<Project
+   *     ID>/agent/versions/<Version ID>` - `projects/<Project
+   *     ID>/locations/<Location ID>/agent/versions/<Version ID>`
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Version getVersion(String name) {
+    GetVersionRequest request = GetVersionRequest.newBuilder().setName(name).build();
+    return getVersion(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Retrieves the specified agent version.
+   *
+   * 
Sample code:
+   *
+   * 
{@code
+   * try (VersionsClient versionsClient = VersionsClient.create()) {
+   *   GetVersionRequest request =
+   *       GetVersionRequest.newBuilder()
+   *           .setName(VersionName.ofProjectVersionName("[PROJECT]", "[VERSION]").toString())
+   *           .build();
+   *   Version response = versionsClient.getVersion(request);
+   * }
+   * }

+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Version getVersion(GetVersionRequest request) {
+    return getVersionCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Retrieves the specified agent version.
+   *
+   * 
Sample code:
+   *
+   * 
{@code
+   * try (VersionsClient versionsClient = VersionsClient.create()) {
+   *   GetVersionRequest request =
+   *       GetVersionRequest.newBuilder()
+   *           .setName(VersionName.ofProjectVersionName("[PROJECT]", "[VERSION]").toString())
+   *           .build();
+   *   ApiFuture future = versionsClient.getVersionCallable().futureCall(request);
+   *   // Do something.
+   *   Version response = future.get();
+   * }
+   * }

+   */
+  public final UnaryCallable getVersionCallable() {
+    return stub.getVersionCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Creates an agent version.
+   *
+   * 
The new version points to the agent instance in the "default" environment.
+   *
+   * 
Sample code:
+   *
+   * 
{@code
+   * try (VersionsClient versionsClient = VersionsClient.create()) {
+   *   AgentName parent = AgentName.ofProjectName("[PROJECT]");
+   *   Version version = Version.newBuilder().build();
+   *   Version response = versionsClient.createVersion(parent, version);
+   * }
+   * }

+   *
+   * @param parent Required. The agent to create a version for. Supported formats: -
+   *     `projects/<Project ID>/agent` - `projects/<Project ID>/locations/<Location
+   *     ID>/agent`
+   * @param version Required. The version to create.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Version createVersion(AgentName parent, Version version) {
+    CreateVersionRequest request =
+        CreateVersionRequest.newBuilder()
+            .setParent(parent == null ? null : parent.toString())
+            .setVersion(version)
+            .build();
+    return createVersion(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Creates an agent version.
+   *
+   * 
The new version points to the agent instance in the "default" environment.
+   *
+   * 
Sample code:
+   *
+   * 
{@code
+   * try (VersionsClient versionsClient = VersionsClient.create()) {
+   *   String parent = VersionName.ofProjectVersionName("[PROJECT]", "[VERSION]").toString();
+   *   Version version = Version.newBuilder().build();
+   *   Version response = versionsClient.createVersion(parent, version);
+   * }
+   * }

+   *
+   * @param parent Required. The agent to create a version for. Supported formats: -
+   *     `projects/<Project ID>/agent` - `projects/<Project ID>/locations/<Location
+   *     ID>/agent`
+   * @param version Required. The version to create.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Version createVersion(String parent, Version version) {
+    CreateVersionRequest request =
+        CreateVersionRequest.newBuilder().setParent(parent).setVersion(version).build();
+    return createVersion(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Creates an agent version.
+   *
+   * 
The new version points to the agent instance in the "default" environment.
+   *
+   * 
Sample code:
+   *
+   * 
{@code
+   * try (VersionsClient versionsClient = VersionsClient.create()) {
+   *   CreateVersionRequest request =
+   *       CreateVersionRequest.newBuilder()
+   *           .setParent(VersionName.ofProjectVersionName("[PROJECT]", "[VERSION]").toString())
+   *           .setVersion(Version.newBuilder().build())
+   *           .build();
+   *   Version response = versionsClient.createVersion(request);
+   * }
+   * }

+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Version createVersion(CreateVersionRequest request) {
+    return createVersionCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Creates an agent version.
+   *
+   * 
The new version points to the agent instance in the "default" environment.
+   *
+   * 
Sample code:
+   *
+   * 
{@code
+   * try (VersionsClient versionsClient = VersionsClient.create()) {
+   *   CreateVersionRequest request =
+   *       CreateVersionRequest.newBuilder()
+   *           .setParent(VersionName.ofProjectVersionName("[PROJECT]", "[VERSION]").toString())
+   *           .setVersion(Version.newBuilder().build())
+   *           .build();
+   *   ApiFuture future = versionsClient.createVersionCallable().futureCall(request);
+   *   // Do something.
+   *   Version response = future.get();
+   * }
+   * }

+   */
+  public final UnaryCallable createVersionCallable() {
+    return stub.createVersionCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Updates the specified agent version.
+   *
+   * 
Note that this method does not allow you to update the state of the agent the given version
+   * points to. It allows you to update only mutable properties of the version resource.
+   *
+   * 
Sample code:
+   *
+   * 
{@code
+   * try (VersionsClient versionsClient = VersionsClient.create()) {
+   *   Version version = Version.newBuilder().build();
+   *   FieldMask updateMask = FieldMask.newBuilder().build();
+   *   Version response = versionsClient.updateVersion(version, updateMask);
+   * }
+   * }

+   *
+   * @param version Required. The version to update. Supported formats: - `projects/<Project
+   *     ID>/agent/versions/<Version ID>` - `projects/<Project
+   *     ID>/locations/<Location ID>/agent/versions/<Version ID>`
+   * @param updateMask Required. The mask to control which fields get updated.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Version updateVersion(Version version, FieldMask updateMask) {
+    UpdateVersionRequest request =
+        UpdateVersionRequest.newBuilder().setVersion(version).setUpdateMask(updateMask).build();
+    return updateVersion(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Updates the specified agent version.
+   *
+   * 
Note that this method does not allow you to update the state of the agent the given version
+   * points to. It allows you to update only mutable properties of the version resource.
+   *
+   * 
Sample code:
+   *
+   * 
{@code
+   * try (VersionsClient versionsClient = VersionsClient.create()) {
+   *   UpdateVersionRequest request =
+   *       UpdateVersionRequest.newBuilder()
+   *           .setVersion(Version.newBuilder().build())
+   *           .setUpdateMask(FieldMask.newBuilder().build())
+   *           .build();
+   *   Version response = versionsClient.updateVersion(request);
+   * }
+   * }

+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Version updateVersion(UpdateVersionRequest request) {
+    return updateVersionCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Updates the specified agent version.
+   *
+   * 
Note that this method does not allow you to update the state of the agent the given version
+   * points to. It allows you to update only mutable properties of the version resource.
+   *
+   * 
Sample code:
+   *
+   * 
{@code
+   * try (VersionsClient versionsClient = VersionsClient.create()) {
+   *   UpdateVersionRequest request =
+   *       UpdateVersionRequest.newBuilder()
+   *           .setVersion(Version.newBuilder().build())
+   *           .setUpdateMask(FieldMask.newBuilder().build())
+   *           .build();
+   *   ApiFuture future = versionsClient.updateVersionCallable().futureCall(request);
+   *   // Do something.
+   *   Version response = future.get();
+   * }
+   * }

+   */
+  public final UnaryCallable updateVersionCallable() {
+    return stub.updateVersionCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Delete the specified agent version.
+   *
+   * 
Sample code:
+   *
+   * 
{@code
+   * try (VersionsClient versionsClient = VersionsClient.create()) {
+   *   VersionName name = VersionName.ofProjectVersionName("[PROJECT]", "[VERSION]");
+   *   versionsClient.deleteVersion(name);
+   * }
+   * }

+   *
+   * @param name Required. The name of the version to delete. Supported formats: -
+   *     `projects/<Project ID>/agent/versions/<Version ID>` - `projects/<Project
+   *     ID>/locations/<Location ID>/agent/versions/<Version ID>`
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final void deleteVersion(VersionName name) {
+    DeleteVersionRequest request =
+        DeleteVersionRequest.newBuilder().setName(name == null ? null : name.toString()).build();
+    deleteVersion(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Delete the specified agent version.
+   *
+   * 
Sample code:
+   *
+   * 
{@code
+   * try (VersionsClient versionsClient = VersionsClient.create()) {
+   *   String name = VersionName.ofProjectVersionName("[PROJECT]", "[VERSION]").toString();
+   *   versionsClient.deleteVersion(name);
+   * }
+   * }

+   *
+   * @param name Required. The name of the version to delete. Supported formats: -
+   *     `projects/<Project ID>/agent/versions/<Version ID>` - `projects/<Project
+   *     ID>/locations/<Location ID>/agent/versions/<Version ID>`
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final void deleteVersion(String name) {
+    DeleteVersionRequest request = DeleteVersionRequest.newBuilder().setName(name).build();
+    deleteVersion(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Delete the specified agent version.
+   *
+   * 
Sample code:
+   *
+   * 
{@code
+   * try (VersionsClient versionsClient = VersionsClient.create()) {
+   *   DeleteVersionRequest request =
+   *       DeleteVersionRequest.newBuilder()
+   *           .setName(VersionName.ofProjectVersionName("[PROJECT]", "[VERSION]").toString())
+   *           .build();
+   *   versionsClient.deleteVersion(request);
+   * }
+   * }

+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final void deleteVersion(DeleteVersionRequest request) {
+    deleteVersionCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Delete the specified agent version.
+   *
+   * 
Sample code:
+   *
+   * 
{@code
+   * try (VersionsClient versionsClient = VersionsClient.create()) {
+   *   DeleteVersionRequest request =
+   *       DeleteVersionRequest.newBuilder()
+   *           .setName(VersionName.ofProjectVersionName("[PROJECT]", "[VERSION]").toString())
+   *           .build();
+   *   ApiFuture future = versionsClient.deleteVersionCallable().futureCall(request);
+   *   // Do something.
+   *   future.get();
+   * }
+   * }

+   */
+  public final UnaryCallable deleteVersionCallable() {
+    return stub.deleteVersionCallable();
+  }
+
+  @Override
+  public final void close() {
+    stub.close();
+  }
+
+  @Override
+  public void shutdown() {
+    stub.shutdown();
+  }
+
+  @Override
+  public boolean isShutdown() {
+    return stub.isShutdown();
+  }
+
+  @Override
+  public boolean isTerminated() {
+    return stub.isTerminated();
+  }
+
+  @Override
+  public void shutdownNow() {
+    stub.shutdownNow();
+  }
+
+  @Override
+  public boolean awaitTermination(long duration, TimeUnit unit) throws InterruptedException {
+    return stub.awaitTermination(duration, unit);
+  }
+
+  public static class ListVersionsPagedResponse
+      extends AbstractPagedListResponse<
+          ListVersionsRequest,
+          ListVersionsResponse,
+          Version,
+          ListVersionsPage,
+          ListVersionsFixedSizeCollection> {
+
+    public static ApiFuture createAsync(
+        PageContext context,
+        ApiFuture futureResponse) {
+      ApiFuture futurePage =
+          ListVersionsPage.createEmptyPage().createPageAsync(context, futureResponse);
+      return ApiFutures.transform(
+          futurePage,
+          new ApiFunction() {
+            @Override
+            public ListVersionsPagedResponse apply(ListVersionsPage input) {
+              return new ListVersionsPagedResponse(input);
+            }
+          },
+          MoreExecutors.directExecutor());
+    }
+
+    private ListVersionsPagedResponse(ListVersionsPage page) {
+      super(page, ListVersionsFixedSizeCollection.createEmptyCollection());
+    }
+  }
+
+  public static class ListVersionsPage
+      extends AbstractPage {
+
+    private ListVersionsPage(
+        PageContext context,
+        ListVersionsResponse response) {
+      super(context, response);
+    }
+
+    private static ListVersionsPage createEmptyPage() {
+      return new ListVersionsPage(null, null);
+    }
+
+    @Override
+    protected ListVersionsPage createPage(
+        PageContext context,
+        ListVersionsResponse response) {
+      return new ListVersionsPage(context, response);
+    }
+
+    @Override
+    public ApiFuture createPageAsync(
+        PageContext context,
+        ApiFuture futureResponse) {
+      return super.createPageAsync(context, futureResponse);
+    }
+  }
+
+  public static class ListVersionsFixedSizeCollection
+      extends AbstractFixedSizeCollection<
+          ListVersionsRequest,
+          ListVersionsResponse,
+          Version,
+          ListVersionsPage,
+          ListVersionsFixedSizeCollection> {
+
+    private ListVersionsFixedSizeCollection(List pages, int collectionSize) {
+      super(pages, collectionSize);
+    }
+
+    private static ListVersionsFixedSizeCollection createEmptyCollection() {
+      return new ListVersionsFixedSizeCollection(null, 0);
+    }
+
+    @Override
+    protected ListVersionsFixedSizeCollection createCollection(
+        List pages, int collectionSize) {
+      return new ListVersionsFixedSizeCollection(pages, collectionSize);
+    }
+  }
+}
diff --git a/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/VersionsSettings.java b/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/VersionsSettings.java
new file mode 100644
index 000000000..73548bb27
--- /dev/null
+++ b/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/VersionsSettings.java
@@ -0,0 +1,228 @@
+/*
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.dialogflow.v2beta1;
+
+import static com.google.cloud.dialogflow.v2beta1.VersionsClient.ListVersionsPagedResponse;
+
+import com.google.api.core.ApiFunction;
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.GoogleCredentialsProvider;
+import com.google.api.gax.core.InstantiatingExecutorProvider;
+import com.google.api.gax.grpc.InstantiatingGrpcChannelProvider;
+import com.google.api.gax.rpc.ApiClientHeaderProvider;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.ClientSettings;
+import com.google.api.gax.rpc.PagedCallSettings;
+import com.google.api.gax.rpc.TransportChannelProvider;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.cloud.dialogflow.v2beta1.stub.VersionsStubSettings;
+import com.google.protobuf.Empty;
+import java.io.IOException;
+import java.util.List;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS.
+/**
+ * Settings class to configure an instance of {@link VersionsClient}.
+ *
+ * 
The default instance has everything set to sensible defaults:
+ *
+ * 
    
+ *   
  • The default service address (dialogflow.googleapis.com) and default port (443) are used.
+ *   
  • Credentials are acquired automatically through Application Default Credentials.
+ *   
  • Retries are configured for idempotent methods but not for non-idempotent methods.
+ * 

+ *
+ * 
The builder of this class is recursive, so contained classes are themselves builders. When
+ * build() is called, the tree of builders is called to create the complete settings object.
+ *
+ * 
For example, to set the total timeout of getVersion to 30 seconds:
+ *
+ * 
{@code
+ * VersionsSettings.Builder versionsSettingsBuilder = VersionsSettings.newBuilder();
+ * versionsSettingsBuilder
+ *     .getVersionSettings()
+ *     .setRetrySettings(
+ *         versionsSettingsBuilder
+ *             .getVersionSettings()
+ *             .getRetrySettings()
+ *             .toBuilder()
+ *             .setTotalTimeout(Duration.ofSeconds(30))
+ *             .build());
+ * VersionsSettings versionsSettings = versionsSettingsBuilder.build();
+ * }

+ */
+@BetaApi
+@Generated("by gapic-generator-java")
+public class VersionsSettings extends ClientSettings {
+
+  /** Returns the object with the settings used for calls to listVersions. */
+  public PagedCallSettings
+      listVersionsSettings() {
+    return ((VersionsStubSettings) getStubSettings()).listVersionsSettings();
+  }
+
+  /** Returns the object with the settings used for calls to getVersion. */
+  public UnaryCallSettings getVersionSettings() {
+    return ((VersionsStubSettings) getStubSettings()).getVersionSettings();
+  }
+
+  /** Returns the object with the settings used for calls to createVersion. */
+  public UnaryCallSettings createVersionSettings() {
+    return ((VersionsStubSettings) getStubSettings()).createVersionSettings();
+  }
+
+  /** Returns the object with the settings used for calls to updateVersion. */
+  public UnaryCallSettings updateVersionSettings() {
+    return ((VersionsStubSettings) getStubSettings()).updateVersionSettings();
+  }
+
+  /** Returns the object with the settings used for calls to deleteVersion. */
+  public UnaryCallSettings deleteVersionSettings() {
+    return ((VersionsStubSettings) getStubSettings()).deleteVersionSettings();
+  }
+
+  public static final VersionsSettings create(VersionsStubSettings stub) throws IOException {
+    return new VersionsSettings.Builder(stub.toBuilder()).build();
+  }
+
+  /** Returns a builder for the default ExecutorProvider for this service. */
+  public static InstantiatingExecutorProvider.Builder defaultExecutorProviderBuilder() {
+    return VersionsStubSettings.defaultExecutorProviderBuilder();
+  }
+
+  /** Returns the default service endpoint. */
+  public static String getDefaultEndpoint() {
+    return VersionsStubSettings.getDefaultEndpoint();
+  }
+
+  /** Returns the default service scopes. */
+  public static List getDefaultServiceScopes() {
+    return VersionsStubSettings.getDefaultServiceScopes();
+  }
+
+  /** Returns a builder for the default credentials for this service. */
+  public static GoogleCredentialsProvider.Builder defaultCredentialsProviderBuilder() {
+    return VersionsStubSettings.defaultCredentialsProviderBuilder();
+  }
+
+  /** Returns a builder for the default ChannelProvider for this service. */
+  public static InstantiatingGrpcChannelProvider.Builder defaultGrpcTransportProviderBuilder() {
+    return VersionsStubSettings.defaultGrpcTransportProviderBuilder();
+  }
+
+  public static TransportChannelProvider defaultTransportChannelProvider() {
+    return VersionsStubSettings.defaultTransportChannelProvider();
+  }
+
+  @BetaApi("The surface for customizing headers is not stable yet and may change in the future.")
+  public static ApiClientHeaderProvider.Builder defaultApiClientHeaderProviderBuilder() {
+    return VersionsStubSettings.defaultApiClientHeaderProviderBuilder();
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder() {
+    return Builder.createDefault();
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder(ClientContext clientContext) {
+    return new Builder(clientContext);
+  }
+
+  /** Returns a builder containing all the values of this settings class. */
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  protected VersionsSettings(Builder settingsBuilder) throws IOException {
+    super(settingsBuilder);
+  }
+
+  /** Builder for VersionsSettings. */
+  public static class Builder extends ClientSettings.Builder {
+
+    protected Builder() throws IOException {
+      this(((ClientContext) null));
+    }
+
+    protected Builder(ClientContext clientContext) {
+      super(VersionsStubSettings.newBuilder(clientContext));
+    }
+
+    protected Builder(VersionsSettings settings) {
+      super(settings.getStubSettings().toBuilder());
+    }
+
+    protected Builder(VersionsStubSettings.Builder stubSettings) {
+      super(stubSettings);
+    }
+
+    private static Builder createDefault() {
+      return new Builder(VersionsStubSettings.newBuilder());
+    }
+
+    public VersionsStubSettings.Builder getStubSettingsBuilder() {
+      return ((VersionsStubSettings.Builder) getStubSettings());
+    }
+
+    // NEXT_MAJOR_VER: remove 'throws Exception'.
+    /**
+     * Applies the given settings updater function to all of the unary API methods in this service.
+     *
+     * 
Note: This method does not support applying settings to streaming methods.
+     */
+    public Builder applyToAllUnaryMethods(
+        ApiFunction, Void> settingsUpdater) throws Exception {
+      super.applyToAllUnaryMethods(
+          getStubSettingsBuilder().unaryMethodSettingsBuilders(), settingsUpdater);
+      return this;
+    }
+
+    /** Returns the builder for the settings used for calls to listVersions. */
+    public PagedCallSettings.Builder<
+            ListVersionsRequest, ListVersionsResponse, ListVersionsPagedResponse>
+        listVersionsSettings() {
+      return getStubSettingsBuilder().listVersionsSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to getVersion. */
+    public UnaryCallSettings.Builder getVersionSettings() {
+      return getStubSettingsBuilder().getVersionSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to createVersion. */
+    public UnaryCallSettings.Builder createVersionSettings() {
+      return getStubSettingsBuilder().createVersionSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to updateVersion. */
+    public UnaryCallSettings.Builder updateVersionSettings() {
+      return getStubSettingsBuilder().updateVersionSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to deleteVersion. */
+    public UnaryCallSettings.Builder deleteVersionSettings() {
+      return getStubSettingsBuilder().deleteVersionSettings();
+    }
+
+    @Override
+    public VersionsSettings build() throws IOException {
+      return new VersionsSettings(this);
+    }
+  }
+}
diff --git a/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/gapic_metadata.json b/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/gapic_metadata.json
index d08ec7742..6a4db898e 100644
--- a/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/gapic_metadata.json
+++ b/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/gapic_metadata.json
@@ -211,8 +211,38 @@
         "grpc": {
           "libraryClient": "EnvironmentsClient",
           "rpcs": {
+            "CreateEnvironment": {
+              "methods": ["createEnvironment", "createEnvironmentCallable"]
+            },
+            "DeleteEnvironment": {
+              "methods": ["deleteEnvironment", "deleteEnvironmentCallable"]
+            },
+            "GetEnvironment": {
+              "methods": ["getEnvironment", "getEnvironmentCallable"]
+            },
+            "GetEnvironmentHistory": {
+              "methods": ["getEnvironmentHistory", "getEnvironmentHistoryPagedCallable", "getEnvironmentHistoryCallable"]
+            },
             "ListEnvironments": {
               "methods": ["listEnvironments", "listEnvironments", "listEnvironments", "listEnvironmentsPagedCallable", "listEnvironmentsCallable"]
+            },
+            "UpdateEnvironment": {
+              "methods": ["updateEnvironment", "updateEnvironmentCallable"]
+            }
+          }
+        }
+      }
+    },
+    "Fulfillments": {
+      "clients": {
+        "grpc": {
+          "libraryClient": "FulfillmentsClient",
+          "rpcs": {
+            "GetFulfillment": {
+              "methods": ["getFulfillment", "getFulfillment", "getFulfillment", "getFulfillmentCallable"]
+            },
+            "UpdateFulfillment": {
+              "methods": ["updateFulfillment", "updateFulfillment", "updateFulfillmentCallable"]
             }
           }
         }
@@ -349,6 +379,30 @@
           }
         }
       }
+    },
+    "Versions": {
+      "clients": {
+        "grpc": {
+          "libraryClient": "VersionsClient",
+          "rpcs": {
+            "CreateVersion": {
+              "methods": ["createVersion", "createVersion", "createVersion", "createVersionCallable"]
+            },
+            "DeleteVersion": {
+              "methods": ["deleteVersion", "deleteVersion", "deleteVersion", "deleteVersionCallable"]
+            },
+            "GetVersion": {
+              "methods": ["getVersion", "getVersion", "getVersion", "getVersionCallable"]
+            },
+            "ListVersions": {
+              "methods": ["listVersions", "listVersions", "listVersions", "listVersionsPagedCallable", "listVersionsCallable"]
+            },
+            "UpdateVersion": {
+              "methods": ["updateVersion", "updateVersion", "updateVersionCallable"]
+            }
+          }
+        }
+      }
     }
   }
 }
\ No newline at end of file
diff --git a/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/package-info.java b/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/package-info.java
index 4788f47d4..fdcee7c16 100644
--- a/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/package-info.java
+++ b/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/package-info.java
@@ -130,10 +130,26 @@
  *
  * 
{@code
  * try (EnvironmentsClient environmentsClient = EnvironmentsClient.create()) {
- *   AgentName parent = AgentName.ofProjectName("[PROJECT]");
- *   for (Environment element : environmentsClient.listEnvironments(parent).iterateAll()) {
- *     // doThingsWith(element);
- *   }
+ *   GetEnvironmentRequest request =
+ *       GetEnvironmentRequest.newBuilder()
+ *           .setName(
+ *               EnvironmentName.ofProjectEnvironmentName("[PROJECT]", "[ENVIRONMENT]").toString())
+ *           .build();
+ *   Environment response = environmentsClient.getEnvironment(request);
+ * }
+ * }

+ *
+ * 
======================= FulfillmentsClient =======================
+ *
+ * 
Service Description: Service for managing
+ * [Fulfillments][google.cloud.dialogflow.v2beta1.Fulfillment].
+ *
+ * 
Sample for FulfillmentsClient:
+ *
+ * 
{@code
+ * try (FulfillmentsClient fulfillmentsClient = FulfillmentsClient.create()) {
+ *   FulfillmentName name = FulfillmentName.ofProjectName("[PROJECT]");
+ *   Fulfillment response = fulfillmentsClient.getFulfillment(name);
  * }
  * }

  *
@@ -213,6 +229,19 @@
  *   SessionEntityType response = sessionEntityTypesClient.getSessionEntityType(name);
  * }
  * }
+ * + *

======================= VersionsClient ======================= + * + *

Service Description: Service for managing [Versions][google.cloud.dialogflow.v2beta1.Version]. + * + *

Sample for VersionsClient: + * + * 

{@code
+ * try (VersionsClient versionsClient = VersionsClient.create()) {
+ *   VersionName name = VersionName.ofProjectVersionName("[PROJECT]", "[VERSION]");
+ *   Version response = versionsClient.getVersion(name);
+ * }
+ * }
*/ @Generated("by gapic-generator-java") package com.google.cloud.dialogflow.v2beta1; diff --git a/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/EnvironmentsStub.java b/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/EnvironmentsStub.java index 216b671a6..59b1dd082 100644 --- a/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/EnvironmentsStub.java +++ b/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/EnvironmentsStub.java @@ -16,13 +16,22 @@ package com.google.cloud.dialogflow.v2beta1.stub; +import static com.google.cloud.dialogflow.v2beta1.EnvironmentsClient.GetEnvironmentHistoryPagedResponse; import static com.google.cloud.dialogflow.v2beta1.EnvironmentsClient.ListEnvironmentsPagedResponse; import com.google.api.core.BetaApi; import com.google.api.gax.core.BackgroundResource; import com.google.api.gax.rpc.UnaryCallable; +import com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest; +import com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest; +import com.google.cloud.dialogflow.v2beta1.Environment; +import com.google.cloud.dialogflow.v2beta1.EnvironmentHistory; +import com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest; +import com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest; import com.google.cloud.dialogflow.v2beta1.ListEnvironmentsRequest; import com.google.cloud.dialogflow.v2beta1.ListEnvironmentsResponse; +import com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest; +import com.google.protobuf.Empty; import javax.annotation.Generated; // AUTO-GENERATED DOCUMENTATION AND CLASS. @@ -45,6 +54,33 @@ public abstract class EnvironmentsStub implements BackgroundResource { throw new UnsupportedOperationException("Not implemented: listEnvironmentsCallable()"); } + public UnaryCallable getEnvironmentCallable() { + throw new UnsupportedOperationException("Not implemented: getEnvironmentCallable()"); + } + + public UnaryCallable createEnvironmentCallable() { + throw new UnsupportedOperationException("Not implemented: createEnvironmentCallable()"); + } + + public UnaryCallable updateEnvironmentCallable() { + throw new UnsupportedOperationException("Not implemented: updateEnvironmentCallable()"); + } + + public UnaryCallable deleteEnvironmentCallable() { + throw new UnsupportedOperationException("Not implemented: deleteEnvironmentCallable()"); + } + + public UnaryCallable + getEnvironmentHistoryPagedCallable() { + throw new UnsupportedOperationException( + "Not implemented: getEnvironmentHistoryPagedCallable()"); + } + + public UnaryCallable + getEnvironmentHistoryCallable() { + throw new UnsupportedOperationException("Not implemented: getEnvironmentHistoryCallable()"); + } + @Override public abstract void close(); } diff --git a/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/EnvironmentsStubSettings.java b/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/EnvironmentsStubSettings.java index 659651a3f..ee436bd0d 100644 --- a/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/EnvironmentsStubSettings.java +++ b/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/EnvironmentsStubSettings.java @@ -16,6 +16,7 @@ package com.google.cloud.dialogflow.v2beta1.stub; +import static com.google.cloud.dialogflow.v2beta1.EnvironmentsClient.GetEnvironmentHistoryPagedResponse; import static com.google.cloud.dialogflow.v2beta1.EnvironmentsClient.ListEnvironmentsPagedResponse; import com.google.api.core.ApiFunction; @@ -40,13 +41,20 @@ import com.google.api.gax.rpc.TransportChannelProvider; import com.google.api.gax.rpc.UnaryCallSettings; import com.google.api.gax.rpc.UnaryCallable; +import com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest; +import com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest; import com.google.cloud.dialogflow.v2beta1.Environment; +import com.google.cloud.dialogflow.v2beta1.EnvironmentHistory; +import com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest; +import com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest; import com.google.cloud.dialogflow.v2beta1.ListEnvironmentsRequest; import com.google.cloud.dialogflow.v2beta1.ListEnvironmentsResponse; +import com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest; import com.google.common.collect.ImmutableList; import com.google.common.collect.ImmutableMap; import com.google.common.collect.ImmutableSet; import com.google.common.collect.Lists; +import com.google.protobuf.Empty; import java.io.IOException; import java.util.List; import javax.annotation.Generated; @@ -67,16 +75,16 @@ *

The builder of this class is recursive, so contained classes are themselves builders. When * build() is called, the tree of builders is called to create the complete settings object. * - *

For example, to set the total timeout of listEnvironments to 30 seconds: + *

For example, to set the total timeout of getEnvironment to 30 seconds: * * 

{@code
  * EnvironmentsStubSettings.Builder environmentsSettingsBuilder =
  *     EnvironmentsStubSettings.newBuilder();
  * environmentsSettingsBuilder
- *     .listEnvironmentsSettings()
+ *     .getEnvironmentSettings()
  *     .setRetrySettings(
  *         environmentsSettingsBuilder
- *             .listEnvironmentsSettings()
+ *             .getEnvironmentSettings()
  *             .getRetrySettings()
  *             .toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
@@ -97,6 +105,13 @@ public class EnvironmentsStubSettings extends StubSettings
       listEnvironmentsSettings;
+  private final UnaryCallSettings getEnvironmentSettings;
+  private final UnaryCallSettings createEnvironmentSettings;
+  private final UnaryCallSettings updateEnvironmentSettings;
+  private final UnaryCallSettings deleteEnvironmentSettings;
+  private final PagedCallSettings<
+          GetEnvironmentHistoryRequest, EnvironmentHistory, GetEnvironmentHistoryPagedResponse>
+      getEnvironmentHistorySettings;
 
   private static final PagedListDescriptor<
           ListEnvironmentsRequest, ListEnvironmentsResponse, Environment>
@@ -138,6 +153,46 @@ public Iterable extractResources(ListEnvironmentsResponse payload)
             }
           };
 
+  private static final PagedListDescriptor<
+          GetEnvironmentHistoryRequest, EnvironmentHistory, EnvironmentHistory.Entry>
+      GET_ENVIRONMENT_HISTORY_PAGE_STR_DESC =
+          new PagedListDescriptor<
+              GetEnvironmentHistoryRequest, EnvironmentHistory, EnvironmentHistory.Entry>() {
+            @Override
+            public String emptyToken() {
+              return "";
+            }
+
+            @Override
+            public GetEnvironmentHistoryRequest injectToken(
+                GetEnvironmentHistoryRequest payload, String token) {
+              return GetEnvironmentHistoryRequest.newBuilder(payload).setPageToken(token).build();
+            }
+
+            @Override
+            public GetEnvironmentHistoryRequest injectPageSize(
+                GetEnvironmentHistoryRequest payload, int pageSize) {
+              return GetEnvironmentHistoryRequest.newBuilder(payload).setPageSize(pageSize).build();
+            }
+
+            @Override
+            public Integer extractPageSize(GetEnvironmentHistoryRequest payload) {
+              return payload.getPageSize();
+            }
+
+            @Override
+            public String extractNextToken(EnvironmentHistory payload) {
+              return payload.getNextPageToken();
+            }
+
+            @Override
+            public Iterable extractResources(EnvironmentHistory payload) {
+              return payload.getEntriesList() == null
+                  ? ImmutableList.of()
+                  : payload.getEntriesList();
+            }
+          };
+
   private static final PagedListResponseFactory<
           ListEnvironmentsRequest, ListEnvironmentsResponse, ListEnvironmentsPagedResponse>
       LIST_ENVIRONMENTS_PAGE_STR_FACT =
@@ -157,6 +212,28 @@ public ApiFuture getFuturePagedResponse(
             }
           };
 
+  private static final PagedListResponseFactory<
+          GetEnvironmentHistoryRequest, EnvironmentHistory, GetEnvironmentHistoryPagedResponse>
+      GET_ENVIRONMENT_HISTORY_PAGE_STR_FACT =
+          new PagedListResponseFactory<
+              GetEnvironmentHistoryRequest,
+              EnvironmentHistory,
+              GetEnvironmentHistoryPagedResponse>() {
+            @Override
+            public ApiFuture getFuturePagedResponse(
+                UnaryCallable callable,
+                GetEnvironmentHistoryRequest request,
+                ApiCallContext context,
+                ApiFuture futureResponse) {
+              PageContext<
+                      GetEnvironmentHistoryRequest, EnvironmentHistory, EnvironmentHistory.Entry>
+                  pageContext =
+                      PageContext.create(
+                          callable, GET_ENVIRONMENT_HISTORY_PAGE_STR_DESC, request, context);
+              return GetEnvironmentHistoryPagedResponse.createAsync(pageContext, futureResponse);
+            }
+          };
+
   /** Returns the object with the settings used for calls to listEnvironments. */
   public PagedCallSettings<
           ListEnvironmentsRequest, ListEnvironmentsResponse, ListEnvironmentsPagedResponse>
@@ -164,6 +241,33 @@ public ApiFuture getFuturePagedResponse(
     return listEnvironmentsSettings;
   }
 
+  /** Returns the object with the settings used for calls to getEnvironment. */
+  public UnaryCallSettings getEnvironmentSettings() {
+    return getEnvironmentSettings;
+  }
+
+  /** Returns the object with the settings used for calls to createEnvironment. */
+  public UnaryCallSettings createEnvironmentSettings() {
+    return createEnvironmentSettings;
+  }
+
+  /** Returns the object with the settings used for calls to updateEnvironment. */
+  public UnaryCallSettings updateEnvironmentSettings() {
+    return updateEnvironmentSettings;
+  }
+
+  /** Returns the object with the settings used for calls to deleteEnvironment. */
+  public UnaryCallSettings deleteEnvironmentSettings() {
+    return deleteEnvironmentSettings;
+  }
+
+  /** Returns the object with the settings used for calls to getEnvironmentHistory. */
+  public PagedCallSettings<
+          GetEnvironmentHistoryRequest, EnvironmentHistory, GetEnvironmentHistoryPagedResponse>
+      getEnvironmentHistorySettings() {
+    return getEnvironmentHistorySettings;
+  }
+
   @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
   public EnvironmentsStub createStub() throws IOException {
     if (getTransportChannelProvider()
@@ -234,6 +338,11 @@ protected EnvironmentsStubSettings(Builder settingsBuilder) throws IOException {
     super(settingsBuilder);
 
     listEnvironmentsSettings = settingsBuilder.listEnvironmentsSettings().build();
+    getEnvironmentSettings = settingsBuilder.getEnvironmentSettings().build();
+    createEnvironmentSettings = settingsBuilder.createEnvironmentSettings().build();
+    updateEnvironmentSettings = settingsBuilder.updateEnvironmentSettings().build();
+    deleteEnvironmentSettings = settingsBuilder.deleteEnvironmentSettings().build();
+    getEnvironmentHistorySettings = settingsBuilder.getEnvironmentHistorySettings().build();
   }
 
   /** Builder for EnvironmentsStubSettings. */
@@ -242,6 +351,17 @@ public static class Builder extends StubSettings.Builder
         listEnvironmentsSettings;
+    private final UnaryCallSettings.Builder
+        getEnvironmentSettings;
+    private final UnaryCallSettings.Builder
+        createEnvironmentSettings;
+    private final UnaryCallSettings.Builder
+        updateEnvironmentSettings;
+    private final UnaryCallSettings.Builder
+        deleteEnvironmentSettings;
+    private final PagedCallSettings.Builder<
+            GetEnvironmentHistoryRequest, EnvironmentHistory, GetEnvironmentHistoryPagedResponse>
+        getEnvironmentHistorySettings;
     private static final ImmutableMap>
         RETRYABLE_CODE_DEFINITIONS;
 
@@ -281,9 +401,21 @@ protected Builder(ClientContext clientContext) {
       super(clientContext);
 
       listEnvironmentsSettings = PagedCallSettings.newBuilder(LIST_ENVIRONMENTS_PAGE_STR_FACT);
+      getEnvironmentSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+      createEnvironmentSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+      updateEnvironmentSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+      deleteEnvironmentSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+      getEnvironmentHistorySettings =
+          PagedCallSettings.newBuilder(GET_ENVIRONMENT_HISTORY_PAGE_STR_FACT);
 
       unaryMethodSettingsBuilders =
-          ImmutableList.>of(listEnvironmentsSettings);
+          ImmutableList.>of(
+              listEnvironmentsSettings,
+              getEnvironmentSettings,
+              createEnvironmentSettings,
+              updateEnvironmentSettings,
+              deleteEnvironmentSettings,
+              getEnvironmentHistorySettings);
       initDefaults(this);
     }
 
@@ -291,9 +423,20 @@ protected Builder(EnvironmentsStubSettings settings) {
       super(settings);
 
       listEnvironmentsSettings = settings.listEnvironmentsSettings.toBuilder();
+      getEnvironmentSettings = settings.getEnvironmentSettings.toBuilder();
+      createEnvironmentSettings = settings.createEnvironmentSettings.toBuilder();
+      updateEnvironmentSettings = settings.updateEnvironmentSettings.toBuilder();
+      deleteEnvironmentSettings = settings.deleteEnvironmentSettings.toBuilder();
+      getEnvironmentHistorySettings = settings.getEnvironmentHistorySettings.toBuilder();
 
       unaryMethodSettingsBuilders =
-          ImmutableList.>of(listEnvironmentsSettings);
+          ImmutableList.>of(
+              listEnvironmentsSettings,
+              getEnvironmentSettings,
+              createEnvironmentSettings,
+              updateEnvironmentSettings,
+              deleteEnvironmentSettings,
+              getEnvironmentHistorySettings);
     }
 
     private static Builder createDefault() {
@@ -313,6 +456,31 @@ private static Builder initDefaults(Builder builder) {
           .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_0_codes"))
           .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_0_params"));
 
+      builder
+          .getEnvironmentSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_0_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_0_params"));
+
+      builder
+          .createEnvironmentSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_0_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_0_params"));
+
+      builder
+          .updateEnvironmentSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_0_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_0_params"));
+
+      builder
+          .deleteEnvironmentSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_0_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_0_params"));
+
+      builder
+          .getEnvironmentHistorySettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_0_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_0_params"));
+
       return builder;
     }
 
@@ -339,6 +507,35 @@ public Builder applyToAllUnaryMethods(
       return listEnvironmentsSettings;
     }
 
+    /** Returns the builder for the settings used for calls to getEnvironment. */
+    public UnaryCallSettings.Builder getEnvironmentSettings() {
+      return getEnvironmentSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to createEnvironment. */
+    public UnaryCallSettings.Builder
+        createEnvironmentSettings() {
+      return createEnvironmentSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to updateEnvironment. */
+    public UnaryCallSettings.Builder
+        updateEnvironmentSettings() {
+      return updateEnvironmentSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to deleteEnvironment. */
+    public UnaryCallSettings.Builder deleteEnvironmentSettings() {
+      return deleteEnvironmentSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to getEnvironmentHistory. */
+    public PagedCallSettings.Builder<
+            GetEnvironmentHistoryRequest, EnvironmentHistory, GetEnvironmentHistoryPagedResponse>
+        getEnvironmentHistorySettings() {
+      return getEnvironmentHistorySettings;
+    }
+
     @Override
     public EnvironmentsStubSettings build() throws IOException {
       return new EnvironmentsStubSettings(this);
diff --git a/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/FulfillmentsStub.java b/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/FulfillmentsStub.java
new file mode 100644
index 000000000..bb8672b6d
--- /dev/null
+++ b/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/FulfillmentsStub.java
@@ -0,0 +1,47 @@
+/*
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.dialogflow.v2beta1.stub;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.BackgroundResource;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.v2beta1.Fulfillment;
+import com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest;
+import com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS.
+/**
+ * Base stub class for the Fulfillments service API.
+ *
+ * 
This class is for advanced usage and reflects the underlying API directly.
+ */
+@BetaApi
+@Generated("by gapic-generator-java")
+public abstract class FulfillmentsStub implements BackgroundResource {
+
+  public UnaryCallable getFulfillmentCallable() {
+    throw new UnsupportedOperationException("Not implemented: getFulfillmentCallable()");
+  }
+
+  public UnaryCallable updateFulfillmentCallable() {
+    throw new UnsupportedOperationException("Not implemented: updateFulfillmentCallable()");
+  }
+
+  @Override
+  public abstract void close();
+}
diff --git a/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/FulfillmentsStubSettings.java b/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/FulfillmentsStubSettings.java
new file mode 100644
index 000000000..3483f6bf3
--- /dev/null
+++ b/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/FulfillmentsStubSettings.java
@@ -0,0 +1,296 @@
+/*
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.dialogflow.v2beta1.stub;
+
+import com.google.api.core.ApiFunction;
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.GaxProperties;
+import com.google.api.gax.core.GoogleCredentialsProvider;
+import com.google.api.gax.core.InstantiatingExecutorProvider;
+import com.google.api.gax.grpc.GaxGrpcProperties;
+import com.google.api.gax.grpc.GrpcTransportChannel;
+import com.google.api.gax.grpc.InstantiatingGrpcChannelProvider;
+import com.google.api.gax.retrying.RetrySettings;
+import com.google.api.gax.rpc.ApiClientHeaderProvider;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.StatusCode;
+import com.google.api.gax.rpc.StubSettings;
+import com.google.api.gax.rpc.TransportChannelProvider;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.cloud.dialogflow.v2beta1.Fulfillment;
+import com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest;
+import com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest;
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.ImmutableMap;
+import com.google.common.collect.ImmutableSet;
+import com.google.common.collect.Lists;
+import java.io.IOException;
+import java.util.List;
+import javax.annotation.Generated;
+import org.threeten.bp.Duration;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS.
+/**
+ * Settings class to configure an instance of {@link FulfillmentsStub}.
+ *
+ * 
The default instance has everything set to sensible defaults:
+ *
+ * 
    
+ *   
  • The default service address (dialogflow.googleapis.com) and default port (443) are used.
+ *   
  • Credentials are acquired automatically through Application Default Credentials.
+ *   
  • Retries are configured for idempotent methods but not for non-idempotent methods.
+ * 

+ *
+ * 
The builder of this class is recursive, so contained classes are themselves builders. When
+ * build() is called, the tree of builders is called to create the complete settings object.
+ *
+ * 
For example, to set the total timeout of getFulfillment to 30 seconds:
+ *
+ * 
{@code
+ * FulfillmentsStubSettings.Builder fulfillmentsSettingsBuilder =
+ *     FulfillmentsStubSettings.newBuilder();
+ * fulfillmentsSettingsBuilder
+ *     .getFulfillmentSettings()
+ *     .setRetrySettings(
+ *         fulfillmentsSettingsBuilder
+ *             .getFulfillmentSettings()
+ *             .getRetrySettings()
+ *             .toBuilder()
+ *             .setTotalTimeout(Duration.ofSeconds(30))
+ *             .build());
+ * FulfillmentsStubSettings fulfillmentsSettings = fulfillmentsSettingsBuilder.build();
+ * }

+ */
+@BetaApi
+@Generated("by gapic-generator-java")
+public class FulfillmentsStubSettings extends StubSettings {
+  /** The default scopes of the service. */
+  private static final ImmutableList DEFAULT_SERVICE_SCOPES =
+      ImmutableList.builder()
+          .add("https://www.googleapis.com/auth/cloud-platform")
+          .add("https://www.googleapis.com/auth/dialogflow")
+          .build();
+
+  private final UnaryCallSettings getFulfillmentSettings;
+  private final UnaryCallSettings updateFulfillmentSettings;
+
+  /** Returns the object with the settings used for calls to getFulfillment. */
+  public UnaryCallSettings getFulfillmentSettings() {
+    return getFulfillmentSettings;
+  }
+
+  /** Returns the object with the settings used for calls to updateFulfillment. */
+  public UnaryCallSettings updateFulfillmentSettings() {
+    return updateFulfillmentSettings;
+  }
+
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  public FulfillmentsStub createStub() throws IOException {
+    if (getTransportChannelProvider()
+        .getTransportName()
+        .equals(GrpcTransportChannel.getGrpcTransportName())) {
+      return GrpcFulfillmentsStub.create(this);
+    }
+    throw new UnsupportedOperationException(
+        String.format(
+            "Transport not supported: %s", getTransportChannelProvider().getTransportName()));
+  }
+
+  /** Returns a builder for the default ExecutorProvider for this service. */
+  public static InstantiatingExecutorProvider.Builder defaultExecutorProviderBuilder() {
+    return InstantiatingExecutorProvider.newBuilder();
+  }
+
+  /** Returns the default service endpoint. */
+  public static String getDefaultEndpoint() {
+    return "dialogflow.googleapis.com:443";
+  }
+
+  /** Returns the default service scopes. */
+  public static List getDefaultServiceScopes() {
+    return DEFAULT_SERVICE_SCOPES;
+  }
+
+  /** Returns a builder for the default credentials for this service. */
+  public static GoogleCredentialsProvider.Builder defaultCredentialsProviderBuilder() {
+    return GoogleCredentialsProvider.newBuilder().setScopesToApply(DEFAULT_SERVICE_SCOPES);
+  }
+
+  /** Returns a builder for the default ChannelProvider for this service. */
+  public static InstantiatingGrpcChannelProvider.Builder defaultGrpcTransportProviderBuilder() {
+    return InstantiatingGrpcChannelProvider.newBuilder()
+        .setMaxInboundMessageSize(Integer.MAX_VALUE);
+  }
+
+  public static TransportChannelProvider defaultTransportChannelProvider() {
+    return defaultGrpcTransportProviderBuilder().build();
+  }
+
+  @BetaApi("The surface for customizing headers is not stable yet and may change in the future.")
+  public static ApiClientHeaderProvider.Builder defaultApiClientHeaderProviderBuilder() {
+    return ApiClientHeaderProvider.newBuilder()
+        .setGeneratedLibToken(
+            "gapic", GaxProperties.getLibraryVersion(FulfillmentsStubSettings.class))
+        .setTransportToken(
+            GaxGrpcProperties.getGrpcTokenName(), GaxGrpcProperties.getGrpcVersion());
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder() {
+    return Builder.createDefault();
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder(ClientContext clientContext) {
+    return new Builder(clientContext);
+  }
+
+  /** Returns a builder containing all the values of this settings class. */
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  protected FulfillmentsStubSettings(Builder settingsBuilder) throws IOException {
+    super(settingsBuilder);
+
+    getFulfillmentSettings = settingsBuilder.getFulfillmentSettings().build();
+    updateFulfillmentSettings = settingsBuilder.updateFulfillmentSettings().build();
+  }
+
+  /** Builder for FulfillmentsStubSettings. */
+  public static class Builder extends StubSettings.Builder {
+    private final ImmutableList> unaryMethodSettingsBuilders;
+    private final UnaryCallSettings.Builder
+        getFulfillmentSettings;
+    private final UnaryCallSettings.Builder
+        updateFulfillmentSettings;
+    private static final ImmutableMap>
+        RETRYABLE_CODE_DEFINITIONS;
+
+    static {
+      ImmutableMap.Builder> definitions =
+          ImmutableMap.builder();
+      definitions.put(
+          "retry_policy_0_codes",
+          ImmutableSet.copyOf(Lists.newArrayList(StatusCode.Code.UNAVAILABLE)));
+      RETRYABLE_CODE_DEFINITIONS = definitions.build();
+    }
+
+    private static final ImmutableMap RETRY_PARAM_DEFINITIONS;
+
+    static {
+      ImmutableMap.Builder definitions = ImmutableMap.builder();
+      RetrySettings settings = null;
+      settings =
+          RetrySettings.newBuilder()
+              .setInitialRetryDelay(Duration.ofMillis(100L))
+              .setRetryDelayMultiplier(1.3)
+              .setMaxRetryDelay(Duration.ofMillis(60000L))
+              .setInitialRpcTimeout(Duration.ofMillis(60000L))
+              .setRpcTimeoutMultiplier(1.0)
+              .setMaxRpcTimeout(Duration.ofMillis(60000L))
+              .setTotalTimeout(Duration.ofMillis(60000L))
+              .build();
+      definitions.put("retry_policy_0_params", settings);
+      RETRY_PARAM_DEFINITIONS = definitions.build();
+    }
+
+    protected Builder() {
+      this(((ClientContext) null));
+    }
+
+    protected Builder(ClientContext clientContext) {
+      super(clientContext);
+
+      getFulfillmentSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+      updateFulfillmentSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      unaryMethodSettingsBuilders =
+          ImmutableList.>of(
+              getFulfillmentSettings, updateFulfillmentSettings);
+      initDefaults(this);
+    }
+
+    protected Builder(FulfillmentsStubSettings settings) {
+      super(settings);
+
+      getFulfillmentSettings = settings.getFulfillmentSettings.toBuilder();
+      updateFulfillmentSettings = settings.updateFulfillmentSettings.toBuilder();
+
+      unaryMethodSettingsBuilders =
+          ImmutableList.>of(
+              getFulfillmentSettings, updateFulfillmentSettings);
+    }
+
+    private static Builder createDefault() {
+      Builder builder = new Builder(((ClientContext) null));
+
+      builder.setTransportChannelProvider(defaultTransportChannelProvider());
+      builder.setCredentialsProvider(defaultCredentialsProviderBuilder().build());
+      builder.setInternalHeaderProvider(defaultApiClientHeaderProviderBuilder().build());
+      builder.setEndpoint(getDefaultEndpoint());
+
+      return initDefaults(builder);
+    }
+
+    private static Builder initDefaults(Builder builder) {
+      builder
+          .getFulfillmentSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_0_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_0_params"));
+
+      builder
+          .updateFulfillmentSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_0_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_0_params"));
+
+      return builder;
+    }
+
+    // NEXT_MAJOR_VER: remove 'throws Exception'.
+    /**
+     * Applies the given settings updater function to all of the unary API methods in this service.
+     *
+     * 
Note: This method does not support applying settings to streaming methods.
+     */
+    public Builder applyToAllUnaryMethods(
+        ApiFunction, Void> settingsUpdater) throws Exception {
+      super.applyToAllUnaryMethods(unaryMethodSettingsBuilders, settingsUpdater);
+      return this;
+    }
+
+    public ImmutableList> unaryMethodSettingsBuilders() {
+      return unaryMethodSettingsBuilders;
+    }
+
+    /** Returns the builder for the settings used for calls to getFulfillment. */
+    public UnaryCallSettings.Builder getFulfillmentSettings() {
+      return getFulfillmentSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to updateFulfillment. */
+    public UnaryCallSettings.Builder
+        updateFulfillmentSettings() {
+      return updateFulfillmentSettings;
+    }
+
+    @Override
+    public FulfillmentsStubSettings build() throws IOException {
+      return new FulfillmentsStubSettings(this);
+    }
+  }
+}
diff --git a/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/GrpcEnvironmentsStub.java b/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/GrpcEnvironmentsStub.java
index 31f380836..963024778 100644
--- a/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/GrpcEnvironmentsStub.java
+++ b/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/GrpcEnvironmentsStub.java
@@ -16,6 +16,7 @@
 
 package com.google.cloud.dialogflow.v2beta1.stub;
 
+import static com.google.cloud.dialogflow.v2beta1.EnvironmentsClient.GetEnvironmentHistoryPagedResponse;
 import static com.google.cloud.dialogflow.v2beta1.EnvironmentsClient.ListEnvironmentsPagedResponse;
 
 import com.google.api.core.BetaApi;
@@ -26,10 +27,18 @@
 import com.google.api.gax.rpc.ClientContext;
 import com.google.api.gax.rpc.RequestParamsExtractor;
 import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest;
+import com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest;
+import com.google.cloud.dialogflow.v2beta1.Environment;
+import com.google.cloud.dialogflow.v2beta1.EnvironmentHistory;
+import com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest;
+import com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest;
 import com.google.cloud.dialogflow.v2beta1.ListEnvironmentsRequest;
 import com.google.cloud.dialogflow.v2beta1.ListEnvironmentsResponse;
+import com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest;
 import com.google.common.collect.ImmutableMap;
 import com.google.longrunning.stub.GrpcOperationsStub;
+import com.google.protobuf.Empty;
 import io.grpc.MethodDescriptor;
 import io.grpc.protobuf.ProtoUtils;
 import java.io.IOException;
@@ -57,10 +66,69 @@ public class GrpcEnvironmentsStub extends EnvironmentsStub {
                   ProtoUtils.marshaller(ListEnvironmentsResponse.getDefaultInstance()))
               .build();
 
+  private static final MethodDescriptor
+      getEnvironmentMethodDescriptor =
+          MethodDescriptor.newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName("google.cloud.dialogflow.v2beta1.Environments/GetEnvironment")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(GetEnvironmentRequest.getDefaultInstance()))
+              .setResponseMarshaller(ProtoUtils.marshaller(Environment.getDefaultInstance()))
+              .build();
+
+  private static final MethodDescriptor
+      createEnvironmentMethodDescriptor =
+          MethodDescriptor.newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName("google.cloud.dialogflow.v2beta1.Environments/CreateEnvironment")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(CreateEnvironmentRequest.getDefaultInstance()))
+              .setResponseMarshaller(ProtoUtils.marshaller(Environment.getDefaultInstance()))
+              .build();
+
+  private static final MethodDescriptor
+      updateEnvironmentMethodDescriptor =
+          MethodDescriptor.newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName("google.cloud.dialogflow.v2beta1.Environments/UpdateEnvironment")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(UpdateEnvironmentRequest.getDefaultInstance()))
+              .setResponseMarshaller(ProtoUtils.marshaller(Environment.getDefaultInstance()))
+              .build();
+
+  private static final MethodDescriptor
+      deleteEnvironmentMethodDescriptor =
+          MethodDescriptor.newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName("google.cloud.dialogflow.v2beta1.Environments/DeleteEnvironment")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(DeleteEnvironmentRequest.getDefaultInstance()))
+              .setResponseMarshaller(ProtoUtils.marshaller(Empty.getDefaultInstance()))
+              .build();
+
+  private static final MethodDescriptor
+      getEnvironmentHistoryMethodDescriptor =
+          MethodDescriptor.newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(
+                  "google.cloud.dialogflow.v2beta1.Environments/GetEnvironmentHistory")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(GetEnvironmentHistoryRequest.getDefaultInstance()))
+              .setResponseMarshaller(ProtoUtils.marshaller(EnvironmentHistory.getDefaultInstance()))
+              .build();
+
   private final UnaryCallable
       listEnvironmentsCallable;
   private final UnaryCallable
       listEnvironmentsPagedCallable;
+  private final UnaryCallable getEnvironmentCallable;
+  private final UnaryCallable createEnvironmentCallable;
+  private final UnaryCallable updateEnvironmentCallable;
+  private final UnaryCallable deleteEnvironmentCallable;
+  private final UnaryCallable
+      getEnvironmentHistoryCallable;
+  private final UnaryCallable
+      getEnvironmentHistoryPagedCallable;
 
   private final BackgroundResource backgroundResources;
   private final GrpcOperationsStub operationsStub;
@@ -118,6 +186,73 @@ public Map extract(ListEnvironmentsRequest request) {
                       }
                     })
                 .build();
+    GrpcCallSettings getEnvironmentTransportSettings =
+        GrpcCallSettings.newBuilder()
+            .setMethodDescriptor(getEnvironmentMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor() {
+                  @Override
+                  public Map extract(GetEnvironmentRequest request) {
+                    ImmutableMap.Builder params = ImmutableMap.builder();
+                    params.put("name", String.valueOf(request.getName()));
+                    return params.build();
+                  }
+                })
+            .build();
+    GrpcCallSettings createEnvironmentTransportSettings =
+        GrpcCallSettings.newBuilder()
+            .setMethodDescriptor(createEnvironmentMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor() {
+                  @Override
+                  public Map extract(CreateEnvironmentRequest request) {
+                    ImmutableMap.Builder params = ImmutableMap.builder();
+                    params.put("parent", String.valueOf(request.getParent()));
+                    return params.build();
+                  }
+                })
+            .build();
+    GrpcCallSettings updateEnvironmentTransportSettings =
+        GrpcCallSettings.newBuilder()
+            .setMethodDescriptor(updateEnvironmentMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor() {
+                  @Override
+                  public Map extract(UpdateEnvironmentRequest request) {
+                    ImmutableMap.Builder params = ImmutableMap.builder();
+                    params.put(
+                        "environment.name", String.valueOf(request.getEnvironment().getName()));
+                    return params.build();
+                  }
+                })
+            .build();
+    GrpcCallSettings deleteEnvironmentTransportSettings =
+        GrpcCallSettings.newBuilder()
+            .setMethodDescriptor(deleteEnvironmentMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor() {
+                  @Override
+                  public Map extract(DeleteEnvironmentRequest request) {
+                    ImmutableMap.Builder params = ImmutableMap.builder();
+                    params.put("name", String.valueOf(request.getName()));
+                    return params.build();
+                  }
+                })
+            .build();
+    GrpcCallSettings
+        getEnvironmentHistoryTransportSettings =
+            GrpcCallSettings.newBuilder()
+                .setMethodDescriptor(getEnvironmentHistoryMethodDescriptor)
+                .setParamsExtractor(
+                    new RequestParamsExtractor() {
+                      @Override
+                      public Map extract(GetEnvironmentHistoryRequest request) {
+                        ImmutableMap.Builder params = ImmutableMap.builder();
+                        params.put("parent", String.valueOf(request.getParent()));
+                        return params.build();
+                      }
+                    })
+                .build();
 
     this.listEnvironmentsCallable =
         callableFactory.createUnaryCallable(
@@ -125,6 +260,34 @@ public Map extract(ListEnvironmentsRequest request) {
     this.listEnvironmentsPagedCallable =
         callableFactory.createPagedCallable(
             listEnvironmentsTransportSettings, settings.listEnvironmentsSettings(), clientContext);
+    this.getEnvironmentCallable =
+        callableFactory.createUnaryCallable(
+            getEnvironmentTransportSettings, settings.getEnvironmentSettings(), clientContext);
+    this.createEnvironmentCallable =
+        callableFactory.createUnaryCallable(
+            createEnvironmentTransportSettings,
+            settings.createEnvironmentSettings(),
+            clientContext);
+    this.updateEnvironmentCallable =
+        callableFactory.createUnaryCallable(
+            updateEnvironmentTransportSettings,
+            settings.updateEnvironmentSettings(),
+            clientContext);
+    this.deleteEnvironmentCallable =
+        callableFactory.createUnaryCallable(
+            deleteEnvironmentTransportSettings,
+            settings.deleteEnvironmentSettings(),
+            clientContext);
+    this.getEnvironmentHistoryCallable =
+        callableFactory.createUnaryCallable(
+            getEnvironmentHistoryTransportSettings,
+            settings.getEnvironmentHistorySettings(),
+            clientContext);
+    this.getEnvironmentHistoryPagedCallable =
+        callableFactory.createPagedCallable(
+            getEnvironmentHistoryTransportSettings,
+            settings.getEnvironmentHistorySettings(),
+            clientContext);
 
     this.backgroundResources =
         new BackgroundResourceAggregation(clientContext.getBackgroundResources());
@@ -146,6 +309,38 @@ public GrpcOperationsStub getOperationsStub() {
     return listEnvironmentsPagedCallable;
   }
 
+  @Override
+  public UnaryCallable getEnvironmentCallable() {
+    return getEnvironmentCallable;
+  }
+
+  @Override
+  public UnaryCallable createEnvironmentCallable() {
+    return createEnvironmentCallable;
+  }
+
+  @Override
+  public UnaryCallable updateEnvironmentCallable() {
+    return updateEnvironmentCallable;
+  }
+
+  @Override
+  public UnaryCallable deleteEnvironmentCallable() {
+    return deleteEnvironmentCallable;
+  }
+
+  @Override
+  public UnaryCallable
+      getEnvironmentHistoryCallable() {
+    return getEnvironmentHistoryCallable;
+  }
+
+  @Override
+  public UnaryCallable
+      getEnvironmentHistoryPagedCallable() {
+    return getEnvironmentHistoryPagedCallable;
+  }
+
   @Override
   public final void close() {
     shutdown();
diff --git a/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/GrpcFulfillmentsCallableFactory.java b/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/GrpcFulfillmentsCallableFactory.java
new file mode 100644
index 000000000..aa1523f05
--- /dev/null
+++ b/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/GrpcFulfillmentsCallableFactory.java
@@ -0,0 +1,115 @@
+/*
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.dialogflow.v2beta1.stub;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.grpc.GrpcCallSettings;
+import com.google.api.gax.grpc.GrpcCallableFactory;
+import com.google.api.gax.grpc.GrpcStubCallableFactory;
+import com.google.api.gax.rpc.BatchingCallSettings;
+import com.google.api.gax.rpc.BidiStreamingCallable;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.ClientStreamingCallable;
+import com.google.api.gax.rpc.OperationCallSettings;
+import com.google.api.gax.rpc.OperationCallable;
+import com.google.api.gax.rpc.PagedCallSettings;
+import com.google.api.gax.rpc.ServerStreamingCallSettings;
+import com.google.api.gax.rpc.ServerStreamingCallable;
+import com.google.api.gax.rpc.StreamingCallSettings;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.longrunning.Operation;
+import com.google.longrunning.stub.OperationsStub;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS.
+/**
+ * gRPC callable factory implementation for the Fulfillments service API.
+ *
+ * 
This class is for advanced usage.
+ */
+@BetaApi
+@Generated("by gapic-generator-java")
+public class GrpcFulfillmentsCallableFactory implements GrpcStubCallableFactory {
+
+  @Override
+  public  UnaryCallable createUnaryCallable(
+      GrpcCallSettings grpcCallSettings,
+      UnaryCallSettings callSettings,
+      ClientContext clientContext) {
+    return GrpcCallableFactory.createUnaryCallable(grpcCallSettings, callSettings, clientContext);
+  }
+
+  @Override
+  public 
+      UnaryCallable createPagedCallable(
+          GrpcCallSettings grpcCallSettings,
+          PagedCallSettings callSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createPagedCallable(grpcCallSettings, callSettings, clientContext);
+  }
+
+  @Override
+  public  UnaryCallable createBatchingCallable(
+      GrpcCallSettings grpcCallSettings,
+      BatchingCallSettings callSettings,
+      ClientContext clientContext) {
+    return GrpcCallableFactory.createBatchingCallable(
+        grpcCallSettings, callSettings, clientContext);
+  }
+
+  @Override
+  public 
+      OperationCallable createOperationCallable(
+          GrpcCallSettings grpcCallSettings,
+          OperationCallSettings callSettings,
+          ClientContext clientContext,
+          OperationsStub operationsStub) {
+    return GrpcCallableFactory.createOperationCallable(
+        grpcCallSettings, callSettings, clientContext, operationsStub);
+  }
+
+  @Override
+  public 
+      BidiStreamingCallable createBidiStreamingCallable(
+          GrpcCallSettings grpcCallSettings,
+          StreamingCallSettings callSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createBidiStreamingCallable(
+        grpcCallSettings, callSettings, clientContext);
+  }
+
+  @Override
+  public 
+      ServerStreamingCallable createServerStreamingCallable(
+          GrpcCallSettings grpcCallSettings,
+          ServerStreamingCallSettings callSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createServerStreamingCallable(
+        grpcCallSettings, callSettings, clientContext);
+  }
+
+  @Override
+  public 
+      ClientStreamingCallable createClientStreamingCallable(
+          GrpcCallSettings grpcCallSettings,
+          StreamingCallSettings callSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createClientStreamingCallable(
+        grpcCallSettings, callSettings, clientContext);
+  }
+}
diff --git a/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/GrpcFulfillmentsStub.java b/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/GrpcFulfillmentsStub.java
new file mode 100644
index 000000000..f6f48c207
--- /dev/null
+++ b/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/GrpcFulfillmentsStub.java
@@ -0,0 +1,197 @@
+/*
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.dialogflow.v2beta1.stub;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.BackgroundResource;
+import com.google.api.gax.core.BackgroundResourceAggregation;
+import com.google.api.gax.grpc.GrpcCallSettings;
+import com.google.api.gax.grpc.GrpcStubCallableFactory;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.RequestParamsExtractor;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.v2beta1.Fulfillment;
+import com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest;
+import com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest;
+import com.google.common.collect.ImmutableMap;
+import com.google.longrunning.stub.GrpcOperationsStub;
+import io.grpc.MethodDescriptor;
+import io.grpc.protobuf.ProtoUtils;
+import java.io.IOException;
+import java.util.Map;
+import java.util.concurrent.TimeUnit;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS.
+/**
+ * gRPC stub implementation for the Fulfillments service API.
+ *
+ * 
This class is for advanced usage and reflects the underlying API directly.
+ */
+@BetaApi
+@Generated("by gapic-generator-java")
+public class GrpcFulfillmentsStub extends FulfillmentsStub {
+  private static final MethodDescriptor
+      getFulfillmentMethodDescriptor =
+          MethodDescriptor.newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName("google.cloud.dialogflow.v2beta1.Fulfillments/GetFulfillment")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(GetFulfillmentRequest.getDefaultInstance()))
+              .setResponseMarshaller(ProtoUtils.marshaller(Fulfillment.getDefaultInstance()))
+              .build();
+
+  private static final MethodDescriptor
+      updateFulfillmentMethodDescriptor =
+          MethodDescriptor.newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName("google.cloud.dialogflow.v2beta1.Fulfillments/UpdateFulfillment")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(UpdateFulfillmentRequest.getDefaultInstance()))
+              .setResponseMarshaller(ProtoUtils.marshaller(Fulfillment.getDefaultInstance()))
+              .build();
+
+  private final UnaryCallable getFulfillmentCallable;
+  private final UnaryCallable updateFulfillmentCallable;
+
+  private final BackgroundResource backgroundResources;
+  private final GrpcOperationsStub operationsStub;
+  private final GrpcStubCallableFactory callableFactory;
+
+  public static final GrpcFulfillmentsStub create(FulfillmentsStubSettings settings)
+      throws IOException {
+    return new GrpcFulfillmentsStub(settings, ClientContext.create(settings));
+  }
+
+  public static final GrpcFulfillmentsStub create(ClientContext clientContext) throws IOException {
+    return new GrpcFulfillmentsStub(FulfillmentsStubSettings.newBuilder().build(), clientContext);
+  }
+
+  public static final GrpcFulfillmentsStub create(
+      ClientContext clientContext, GrpcStubCallableFactory callableFactory) throws IOException {
+    return new GrpcFulfillmentsStub(
+        FulfillmentsStubSettings.newBuilder().build(), clientContext, callableFactory);
+  }
+
+  /**
+   * Constructs an instance of GrpcFulfillmentsStub, using the given settings. This is protected so
+   * that it is easy to make a subclass, but otherwise, the static factory methods should be
+   * preferred.
+   */
+  protected GrpcFulfillmentsStub(FulfillmentsStubSettings settings, ClientContext clientContext)
+      throws IOException {
+    this(settings, clientContext, new GrpcFulfillmentsCallableFactory());
+  }
+
+  /**
+   * Constructs an instance of GrpcFulfillmentsStub, using the given settings. This is protected so
+   * that it is easy to make a subclass, but otherwise, the static factory methods should be
+   * preferred.
+   */
+  protected GrpcFulfillmentsStub(
+      FulfillmentsStubSettings settings,
+      ClientContext clientContext,
+      GrpcStubCallableFactory callableFactory)
+      throws IOException {
+    this.callableFactory = callableFactory;
+    this.operationsStub = GrpcOperationsStub.create(clientContext, callableFactory);
+
+    GrpcCallSettings getFulfillmentTransportSettings =
+        GrpcCallSettings.newBuilder()
+            .setMethodDescriptor(getFulfillmentMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor() {
+                  @Override
+                  public Map extract(GetFulfillmentRequest request) {
+                    ImmutableMap.Builder params = ImmutableMap.builder();
+                    params.put("name", String.valueOf(request.getName()));
+                    return params.build();
+                  }
+                })
+            .build();
+    GrpcCallSettings updateFulfillmentTransportSettings =
+        GrpcCallSettings.newBuilder()
+            .setMethodDescriptor(updateFulfillmentMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor() {
+                  @Override
+                  public Map extract(UpdateFulfillmentRequest request) {
+                    ImmutableMap.Builder params = ImmutableMap.builder();
+                    params.put(
+                        "fulfillment.name", String.valueOf(request.getFulfillment().getName()));
+                    return params.build();
+                  }
+                })
+            .build();
+
+    this.getFulfillmentCallable =
+        callableFactory.createUnaryCallable(
+            getFulfillmentTransportSettings, settings.getFulfillmentSettings(), clientContext);
+    this.updateFulfillmentCallable =
+        callableFactory.createUnaryCallable(
+            updateFulfillmentTransportSettings,
+            settings.updateFulfillmentSettings(),
+            clientContext);
+
+    this.backgroundResources =
+        new BackgroundResourceAggregation(clientContext.getBackgroundResources());
+  }
+
+  public GrpcOperationsStub getOperationsStub() {
+    return operationsStub;
+  }
+
+  @Override
+  public UnaryCallable getFulfillmentCallable() {
+    return getFulfillmentCallable;
+  }
+
+  @Override
+  public UnaryCallable updateFulfillmentCallable() {
+    return updateFulfillmentCallable;
+  }
+
+  @Override
+  public final void close() {
+    shutdown();
+  }
+
+  @Override
+  public void shutdown() {
+    backgroundResources.shutdown();
+  }
+
+  @Override
+  public boolean isShutdown() {
+    return backgroundResources.isShutdown();
+  }
+
+  @Override
+  public boolean isTerminated() {
+    return backgroundResources.isTerminated();
+  }
+
+  @Override
+  public void shutdownNow() {
+    backgroundResources.shutdownNow();
+  }
+
+  @Override
+  public boolean awaitTermination(long duration, TimeUnit unit) throws InterruptedException {
+    return backgroundResources.awaitTermination(duration, unit);
+  }
+}
diff --git a/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/GrpcVersionsCallableFactory.java b/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/GrpcVersionsCallableFactory.java
new file mode 100644
index 000000000..21dd2db85
--- /dev/null
+++ b/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/GrpcVersionsCallableFactory.java
@@ -0,0 +1,115 @@
+/*
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.dialogflow.v2beta1.stub;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.grpc.GrpcCallSettings;
+import com.google.api.gax.grpc.GrpcCallableFactory;
+import com.google.api.gax.grpc.GrpcStubCallableFactory;
+import com.google.api.gax.rpc.BatchingCallSettings;
+import com.google.api.gax.rpc.BidiStreamingCallable;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.ClientStreamingCallable;
+import com.google.api.gax.rpc.OperationCallSettings;
+import com.google.api.gax.rpc.OperationCallable;
+import com.google.api.gax.rpc.PagedCallSettings;
+import com.google.api.gax.rpc.ServerStreamingCallSettings;
+import com.google.api.gax.rpc.ServerStreamingCallable;
+import com.google.api.gax.rpc.StreamingCallSettings;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.longrunning.Operation;
+import com.google.longrunning.stub.OperationsStub;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS.
+/**
+ * gRPC callable factory implementation for the Versions service API.
+ *
+ * 
This class is for advanced usage.
+ */
+@BetaApi
+@Generated("by gapic-generator-java")
+public class GrpcVersionsCallableFactory implements GrpcStubCallableFactory {
+
+  @Override
+  public  UnaryCallable createUnaryCallable(
+      GrpcCallSettings grpcCallSettings,
+      UnaryCallSettings callSettings,
+      ClientContext clientContext) {
+    return GrpcCallableFactory.createUnaryCallable(grpcCallSettings, callSettings, clientContext);
+  }
+
+  @Override
+  public 
+      UnaryCallable createPagedCallable(
+          GrpcCallSettings grpcCallSettings,
+          PagedCallSettings callSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createPagedCallable(grpcCallSettings, callSettings, clientContext);
+  }
+
+  @Override
+  public  UnaryCallable createBatchingCallable(
+      GrpcCallSettings grpcCallSettings,
+      BatchingCallSettings callSettings,
+      ClientContext clientContext) {
+    return GrpcCallableFactory.createBatchingCallable(
+        grpcCallSettings, callSettings, clientContext);
+  }
+
+  @Override
+  public 
+      OperationCallable createOperationCallable(
+          GrpcCallSettings grpcCallSettings,
+          OperationCallSettings callSettings,
+          ClientContext clientContext,
+          OperationsStub operationsStub) {
+    return GrpcCallableFactory.createOperationCallable(
+        grpcCallSettings, callSettings, clientContext, operationsStub);
+  }
+
+  @Override
+  public 
+      BidiStreamingCallable createBidiStreamingCallable(
+          GrpcCallSettings grpcCallSettings,
+          StreamingCallSettings callSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createBidiStreamingCallable(
+        grpcCallSettings, callSettings, clientContext);
+  }
+
+  @Override
+  public 
+      ServerStreamingCallable createServerStreamingCallable(
+          GrpcCallSettings grpcCallSettings,
+          ServerStreamingCallSettings callSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createServerStreamingCallable(
+        grpcCallSettings, callSettings, clientContext);
+  }
+
+  @Override
+  public 
+      ClientStreamingCallable createClientStreamingCallable(
+          GrpcCallSettings grpcCallSettings,
+          StreamingCallSettings callSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createClientStreamingCallable(
+        grpcCallSettings, callSettings, clientContext);
+  }
+}
diff --git a/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/GrpcVersionsStub.java b/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/GrpcVersionsStub.java
new file mode 100644
index 000000000..c854bbcad
--- /dev/null
+++ b/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/GrpcVersionsStub.java
@@ -0,0 +1,300 @@
+/*
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.dialogflow.v2beta1.stub;
+
+import static com.google.cloud.dialogflow.v2beta1.VersionsClient.ListVersionsPagedResponse;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.BackgroundResource;
+import com.google.api.gax.core.BackgroundResourceAggregation;
+import com.google.api.gax.grpc.GrpcCallSettings;
+import com.google.api.gax.grpc.GrpcStubCallableFactory;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.RequestParamsExtractor;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.v2beta1.CreateVersionRequest;
+import com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest;
+import com.google.cloud.dialogflow.v2beta1.GetVersionRequest;
+import com.google.cloud.dialogflow.v2beta1.ListVersionsRequest;
+import com.google.cloud.dialogflow.v2beta1.ListVersionsResponse;
+import com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest;
+import com.google.cloud.dialogflow.v2beta1.Version;
+import com.google.common.collect.ImmutableMap;
+import com.google.longrunning.stub.GrpcOperationsStub;
+import com.google.protobuf.Empty;
+import io.grpc.MethodDescriptor;
+import io.grpc.protobuf.ProtoUtils;
+import java.io.IOException;
+import java.util.Map;
+import java.util.concurrent.TimeUnit;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS.
+/**
+ * gRPC stub implementation for the Versions service API.
+ *
+ * 
This class is for advanced usage and reflects the underlying API directly.
+ */
+@BetaApi
+@Generated("by gapic-generator-java")
+public class GrpcVersionsStub extends VersionsStub {
+  private static final MethodDescriptor
+      listVersionsMethodDescriptor =
+          MethodDescriptor.newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName("google.cloud.dialogflow.v2beta1.Versions/ListVersions")
+              .setRequestMarshaller(ProtoUtils.marshaller(ListVersionsRequest.getDefaultInstance()))
+              .setResponseMarshaller(
+                  ProtoUtils.marshaller(ListVersionsResponse.getDefaultInstance()))
+              .build();
+
+  private static final MethodDescriptor getVersionMethodDescriptor =
+      MethodDescriptor.newBuilder()
+          .setType(MethodDescriptor.MethodType.UNARY)
+          .setFullMethodName("google.cloud.dialogflow.v2beta1.Versions/GetVersion")
+          .setRequestMarshaller(ProtoUtils.marshaller(GetVersionRequest.getDefaultInstance()))
+          .setResponseMarshaller(ProtoUtils.marshaller(Version.getDefaultInstance()))
+          .build();
+
+  private static final MethodDescriptor
+      createVersionMethodDescriptor =
+          MethodDescriptor.newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName("google.cloud.dialogflow.v2beta1.Versions/CreateVersion")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(CreateVersionRequest.getDefaultInstance()))
+              .setResponseMarshaller(ProtoUtils.marshaller(Version.getDefaultInstance()))
+              .build();
+
+  private static final MethodDescriptor
+      updateVersionMethodDescriptor =
+          MethodDescriptor.newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName("google.cloud.dialogflow.v2beta1.Versions/UpdateVersion")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(UpdateVersionRequest.getDefaultInstance()))
+              .setResponseMarshaller(ProtoUtils.marshaller(Version.getDefaultInstance()))
+              .build();
+
+  private static final MethodDescriptor deleteVersionMethodDescriptor =
+      MethodDescriptor.newBuilder()
+          .setType(MethodDescriptor.MethodType.UNARY)
+          .setFullMethodName("google.cloud.dialogflow.v2beta1.Versions/DeleteVersion")
+          .setRequestMarshaller(ProtoUtils.marshaller(DeleteVersionRequest.getDefaultInstance()))
+          .setResponseMarshaller(ProtoUtils.marshaller(Empty.getDefaultInstance()))
+          .build();
+
+  private final UnaryCallable listVersionsCallable;
+  private final UnaryCallable
+      listVersionsPagedCallable;
+  private final UnaryCallable getVersionCallable;
+  private final UnaryCallable createVersionCallable;
+  private final UnaryCallable updateVersionCallable;
+  private final UnaryCallable deleteVersionCallable;
+
+  private final BackgroundResource backgroundResources;
+  private final GrpcOperationsStub operationsStub;
+  private final GrpcStubCallableFactory callableFactory;
+
+  public static final GrpcVersionsStub create(VersionsStubSettings settings) throws IOException {
+    return new GrpcVersionsStub(settings, ClientContext.create(settings));
+  }
+
+  public static final GrpcVersionsStub create(ClientContext clientContext) throws IOException {
+    return new GrpcVersionsStub(VersionsStubSettings.newBuilder().build(), clientContext);
+  }
+
+  public static final GrpcVersionsStub create(
+      ClientContext clientContext, GrpcStubCallableFactory callableFactory) throws IOException {
+    return new GrpcVersionsStub(
+        VersionsStubSettings.newBuilder().build(), clientContext, callableFactory);
+  }
+
+  /**
+   * Constructs an instance of GrpcVersionsStub, using the given settings. This is protected so that
+   * it is easy to make a subclass, but otherwise, the static factory methods should be preferred.
+   */
+  protected GrpcVersionsStub(VersionsStubSettings settings, ClientContext clientContext)
+      throws IOException {
+    this(settings, clientContext, new GrpcVersionsCallableFactory());
+  }
+
+  /**
+   * Constructs an instance of GrpcVersionsStub, using the given settings. This is protected so that
+   * it is easy to make a subclass, but otherwise, the static factory methods should be preferred.
+   */
+  protected GrpcVersionsStub(
+      VersionsStubSettings settings,
+      ClientContext clientContext,
+      GrpcStubCallableFactory callableFactory)
+      throws IOException {
+    this.callableFactory = callableFactory;
+    this.operationsStub = GrpcOperationsStub.create(clientContext, callableFactory);
+
+    GrpcCallSettings listVersionsTransportSettings =
+        GrpcCallSettings.newBuilder()
+            .setMethodDescriptor(listVersionsMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor() {
+                  @Override
+                  public Map extract(ListVersionsRequest request) {
+                    ImmutableMap.Builder params = ImmutableMap.builder();
+                    params.put("parent", String.valueOf(request.getParent()));
+                    return params.build();
+                  }
+                })
+            .build();
+    GrpcCallSettings getVersionTransportSettings =
+        GrpcCallSettings.newBuilder()
+            .setMethodDescriptor(getVersionMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor() {
+                  @Override
+                  public Map extract(GetVersionRequest request) {
+                    ImmutableMap.Builder params = ImmutableMap.builder();
+                    params.put("name", String.valueOf(request.getName()));
+                    return params.build();
+                  }
+                })
+            .build();
+    GrpcCallSettings createVersionTransportSettings =
+        GrpcCallSettings.newBuilder()
+            .setMethodDescriptor(createVersionMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor() {
+                  @Override
+                  public Map extract(CreateVersionRequest request) {
+                    ImmutableMap.Builder params = ImmutableMap.builder();
+                    params.put("parent", String.valueOf(request.getParent()));
+                    return params.build();
+                  }
+                })
+            .build();
+    GrpcCallSettings updateVersionTransportSettings =
+        GrpcCallSettings.newBuilder()
+            .setMethodDescriptor(updateVersionMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor() {
+                  @Override
+                  public Map extract(UpdateVersionRequest request) {
+                    ImmutableMap.Builder params = ImmutableMap.builder();
+                    params.put("version.name", String.valueOf(request.getVersion().getName()));
+                    return params.build();
+                  }
+                })
+            .build();
+    GrpcCallSettings deleteVersionTransportSettings =
+        GrpcCallSettings.newBuilder()
+            .setMethodDescriptor(deleteVersionMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor() {
+                  @Override
+                  public Map extract(DeleteVersionRequest request) {
+                    ImmutableMap.Builder params = ImmutableMap.builder();
+                    params.put("name", String.valueOf(request.getName()));
+                    return params.build();
+                  }
+                })
+            .build();
+
+    this.listVersionsCallable =
+        callableFactory.createUnaryCallable(
+            listVersionsTransportSettings, settings.listVersionsSettings(), clientContext);
+    this.listVersionsPagedCallable =
+        callableFactory.createPagedCallable(
+            listVersionsTransportSettings, settings.listVersionsSettings(), clientContext);
+    this.getVersionCallable =
+        callableFactory.createUnaryCallable(
+            getVersionTransportSettings, settings.getVersionSettings(), clientContext);
+    this.createVersionCallable =
+        callableFactory.createUnaryCallable(
+            createVersionTransportSettings, settings.createVersionSettings(), clientContext);
+    this.updateVersionCallable =
+        callableFactory.createUnaryCallable(
+            updateVersionTransportSettings, settings.updateVersionSettings(), clientContext);
+    this.deleteVersionCallable =
+        callableFactory.createUnaryCallable(
+            deleteVersionTransportSettings, settings.deleteVersionSettings(), clientContext);
+
+    this.backgroundResources =
+        new BackgroundResourceAggregation(clientContext.getBackgroundResources());
+  }
+
+  public GrpcOperationsStub getOperationsStub() {
+    return operationsStub;
+  }
+
+  @Override
+  public UnaryCallable listVersionsCallable() {
+    return listVersionsCallable;
+  }
+
+  @Override
+  public UnaryCallable listVersionsPagedCallable() {
+    return listVersionsPagedCallable;
+  }
+
+  @Override
+  public UnaryCallable getVersionCallable() {
+    return getVersionCallable;
+  }
+
+  @Override
+  public UnaryCallable createVersionCallable() {
+    return createVersionCallable;
+  }
+
+  @Override
+  public UnaryCallable updateVersionCallable() {
+    return updateVersionCallable;
+  }
+
+  @Override
+  public UnaryCallable deleteVersionCallable() {
+    return deleteVersionCallable;
+  }
+
+  @Override
+  public final void close() {
+    shutdown();
+  }
+
+  @Override
+  public void shutdown() {
+    backgroundResources.shutdown();
+  }
+
+  @Override
+  public boolean isShutdown() {
+    return backgroundResources.isShutdown();
+  }
+
+  @Override
+  public boolean isTerminated() {
+    return backgroundResources.isTerminated();
+  }
+
+  @Override
+  public void shutdownNow() {
+    backgroundResources.shutdownNow();
+  }
+
+  @Override
+  public boolean awaitTermination(long duration, TimeUnit unit) throws InterruptedException {
+    return backgroundResources.awaitTermination(duration, unit);
+  }
+}
diff --git a/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/VersionsStub.java b/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/VersionsStub.java
new file mode 100644
index 000000000..d909921bd
--- /dev/null
+++ b/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/VersionsStub.java
@@ -0,0 +1,70 @@
+/*
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.dialogflow.v2beta1.stub;
+
+import static com.google.cloud.dialogflow.v2beta1.VersionsClient.ListVersionsPagedResponse;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.BackgroundResource;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.v2beta1.CreateVersionRequest;
+import com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest;
+import com.google.cloud.dialogflow.v2beta1.GetVersionRequest;
+import com.google.cloud.dialogflow.v2beta1.ListVersionsRequest;
+import com.google.cloud.dialogflow.v2beta1.ListVersionsResponse;
+import com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest;
+import com.google.cloud.dialogflow.v2beta1.Version;
+import com.google.protobuf.Empty;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS.
+/**
+ * Base stub class for the Versions service API.
+ *
+ * 
This class is for advanced usage and reflects the underlying API directly.
+ */
+@BetaApi
+@Generated("by gapic-generator-java")
+public abstract class VersionsStub implements BackgroundResource {
+
+  public UnaryCallable listVersionsPagedCallable() {
+    throw new UnsupportedOperationException("Not implemented: listVersionsPagedCallable()");
+  }
+
+  public UnaryCallable listVersionsCallable() {
+    throw new UnsupportedOperationException("Not implemented: listVersionsCallable()");
+  }
+
+  public UnaryCallable getVersionCallable() {
+    throw new UnsupportedOperationException("Not implemented: getVersionCallable()");
+  }
+
+  public UnaryCallable createVersionCallable() {
+    throw new UnsupportedOperationException("Not implemented: createVersionCallable()");
+  }
+
+  public UnaryCallable updateVersionCallable() {
+    throw new UnsupportedOperationException("Not implemented: updateVersionCallable()");
+  }
+
+  public UnaryCallable deleteVersionCallable() {
+    throw new UnsupportedOperationException("Not implemented: deleteVersionCallable()");
+  }
+
+  @Override
+  public abstract void close();
+}
diff --git a/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/VersionsStubSettings.java b/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/VersionsStubSettings.java
new file mode 100644
index 000000000..ff7ad1b0b
--- /dev/null
+++ b/google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/VersionsStubSettings.java
@@ -0,0 +1,433 @@
+/*
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.dialogflow.v2beta1.stub;
+
+import static com.google.cloud.dialogflow.v2beta1.VersionsClient.ListVersionsPagedResponse;
+
+import com.google.api.core.ApiFunction;
+import com.google.api.core.ApiFuture;
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.GaxProperties;
+import com.google.api.gax.core.GoogleCredentialsProvider;
+import com.google.api.gax.core.InstantiatingExecutorProvider;
+import com.google.api.gax.grpc.GaxGrpcProperties;
+import com.google.api.gax.grpc.GrpcTransportChannel;
+import com.google.api.gax.grpc.InstantiatingGrpcChannelProvider;
+import com.google.api.gax.retrying.RetrySettings;
+import com.google.api.gax.rpc.ApiCallContext;
+import com.google.api.gax.rpc.ApiClientHeaderProvider;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.PageContext;
+import com.google.api.gax.rpc.PagedCallSettings;
+import com.google.api.gax.rpc.PagedListDescriptor;
+import com.google.api.gax.rpc.PagedListResponseFactory;
+import com.google.api.gax.rpc.StatusCode;
+import com.google.api.gax.rpc.StubSettings;
+import com.google.api.gax.rpc.TransportChannelProvider;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.dialogflow.v2beta1.CreateVersionRequest;
+import com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest;
+import com.google.cloud.dialogflow.v2beta1.GetVersionRequest;
+import com.google.cloud.dialogflow.v2beta1.ListVersionsRequest;
+import com.google.cloud.dialogflow.v2beta1.ListVersionsResponse;
+import com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest;
+import com.google.cloud.dialogflow.v2beta1.Version;
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.ImmutableMap;
+import com.google.common.collect.ImmutableSet;
+import com.google.common.collect.Lists;
+import com.google.protobuf.Empty;
+import java.io.IOException;
+import java.util.List;
+import javax.annotation.Generated;
+import org.threeten.bp.Duration;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS.
+/**
+ * Settings class to configure an instance of {@link VersionsStub}.
+ *
+ * 
The default instance has everything set to sensible defaults:
+ *
+ * 
    
+ *   
  • The default service address (dialogflow.googleapis.com) and default port (443) are used.
+ *   
  • Credentials are acquired automatically through Application Default Credentials.
+ *   
  • Retries are configured for idempotent methods but not for non-idempotent methods.
+ * 

+ *
+ * 
The builder of this class is recursive, so contained classes are themselves builders. When
+ * build() is called, the tree of builders is called to create the complete settings object.
+ *
+ * 
For example, to set the total timeout of getVersion to 30 seconds:
+ *
+ * 
{@code
+ * VersionsStubSettings.Builder versionsSettingsBuilder = VersionsStubSettings.newBuilder();
+ * versionsSettingsBuilder
+ *     .getVersionSettings()
+ *     .setRetrySettings(
+ *         versionsSettingsBuilder
+ *             .getVersionSettings()
+ *             .getRetrySettings()
+ *             .toBuilder()
+ *             .setTotalTimeout(Duration.ofSeconds(30))
+ *             .build());
+ * VersionsStubSettings versionsSettings = versionsSettingsBuilder.build();
+ * }

+ */
+@BetaApi
+@Generated("by gapic-generator-java")
+public class VersionsStubSettings extends StubSettings {
+  /** The default scopes of the service. */
+  private static final ImmutableList DEFAULT_SERVICE_SCOPES =
+      ImmutableList.builder()
+          .add("https://www.googleapis.com/auth/cloud-platform")
+          .add("https://www.googleapis.com/auth/dialogflow")
+          .build();
+
+  private final PagedCallSettings<
+          ListVersionsRequest, ListVersionsResponse, ListVersionsPagedResponse>
+      listVersionsSettings;
+  private final UnaryCallSettings getVersionSettings;
+  private final UnaryCallSettings createVersionSettings;
+  private final UnaryCallSettings updateVersionSettings;
+  private final UnaryCallSettings deleteVersionSettings;
+
+  private static final PagedListDescriptor
+      LIST_VERSIONS_PAGE_STR_DESC =
+          new PagedListDescriptor() {
+            @Override
+            public String emptyToken() {
+              return "";
+            }
+
+            @Override
+            public ListVersionsRequest injectToken(ListVersionsRequest payload, String token) {
+              return ListVersionsRequest.newBuilder(payload).setPageToken(token).build();
+            }
+
+            @Override
+            public ListVersionsRequest injectPageSize(ListVersionsRequest payload, int pageSize) {
+              return ListVersionsRequest.newBuilder(payload).setPageSize(pageSize).build();
+            }
+
+            @Override
+            public Integer extractPageSize(ListVersionsRequest payload) {
+              return payload.getPageSize();
+            }
+
+            @Override
+            public String extractNextToken(ListVersionsResponse payload) {
+              return payload.getNextPageToken();
+            }
+
+            @Override
+            public Iterable extractResources(ListVersionsResponse payload) {
+              return payload.getVersionsList() == null
+                  ? ImmutableList.of()
+                  : payload.getVersionsList();
+            }
+          };
+
+  private static final PagedListResponseFactory<
+          ListVersionsRequest, ListVersionsResponse, ListVersionsPagedResponse>
+      LIST_VERSIONS_PAGE_STR_FACT =
+          new PagedListResponseFactory<
+              ListVersionsRequest, ListVersionsResponse, ListVersionsPagedResponse>() {
+            @Override
+            public ApiFuture getFuturePagedResponse(
+                UnaryCallable callable,
+                ListVersionsRequest request,
+                ApiCallContext context,
+                ApiFuture futureResponse) {
+              PageContext pageContext =
+                  PageContext.create(callable, LIST_VERSIONS_PAGE_STR_DESC, request, context);
+              return ListVersionsPagedResponse.createAsync(pageContext, futureResponse);
+            }
+          };
+
+  /** Returns the object with the settings used for calls to listVersions. */
+  public PagedCallSettings
+      listVersionsSettings() {
+    return listVersionsSettings;
+  }
+
+  /** Returns the object with the settings used for calls to getVersion. */
+  public UnaryCallSettings getVersionSettings() {
+    return getVersionSettings;
+  }
+
+  /** Returns the object with the settings used for calls to createVersion. */
+  public UnaryCallSettings createVersionSettings() {
+    return createVersionSettings;
+  }
+
+  /** Returns the object with the settings used for calls to updateVersion. */
+  public UnaryCallSettings updateVersionSettings() {
+    return updateVersionSettings;
+  }
+
+  /** Returns the object with the settings used for calls to deleteVersion. */
+  public UnaryCallSettings deleteVersionSettings() {
+    return deleteVersionSettings;
+  }
+
+  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
+  public VersionsStub createStub() throws IOException {
+    if (getTransportChannelProvider()
+        .getTransportName()
+        .equals(GrpcTransportChannel.getGrpcTransportName())) {
+      return GrpcVersionsStub.create(this);
+    }
+    throw new UnsupportedOperationException(
+        String.format(
+            "Transport not supported: %s", getTransportChannelProvider().getTransportName()));
+  }
+
+  /** Returns a builder for the default ExecutorProvider for this service. */
+  public static InstantiatingExecutorProvider.Builder defaultExecutorProviderBuilder() {
+    return InstantiatingExecutorProvider.newBuilder();
+  }
+
+  /** Returns the default service endpoint. */
+  public static String getDefaultEndpoint() {
+    return "dialogflow.googleapis.com:443";
+  }
+
+  /** Returns the default service scopes. */
+  public static List getDefaultServiceScopes() {
+    return DEFAULT_SERVICE_SCOPES;
+  }
+
+  /** Returns a builder for the default credentials for this service. */
+  public static GoogleCredentialsProvider.Builder defaultCredentialsProviderBuilder() {
+    return GoogleCredentialsProvider.newBuilder().setScopesToApply(DEFAULT_SERVICE_SCOPES);
+  }
+
+  /** Returns a builder for the default ChannelProvider for this service. */
+  public static InstantiatingGrpcChannelProvider.Builder defaultGrpcTransportProviderBuilder() {
+    return InstantiatingGrpcChannelProvider.newBuilder()
+        .setMaxInboundMessageSize(Integer.MAX_VALUE);
+  }
+
+  public static TransportChannelProvider defaultTransportChannelProvider() {
+    return defaultGrpcTransportProviderBuilder().build();
+  }
+
+  @BetaApi("The surface for customizing headers is not stable yet and may change in the future.")
+  public static ApiClientHeaderProvider.Builder defaultApiClientHeaderProviderBuilder() {
+    return ApiClientHeaderProvider.newBuilder()
+        .setGeneratedLibToken("gapic", GaxProperties.getLibraryVersion(VersionsStubSettings.class))
+        .setTransportToken(
+            GaxGrpcProperties.getGrpcTokenName(), GaxGrpcProperties.getGrpcVersion());
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder() {
+    return Builder.createDefault();
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder(ClientContext clientContext) {
+    return new Builder(clientContext);
+  }
+
+  /** Returns a builder containing all the values of this settings class. */
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  protected VersionsStubSettings(Builder settingsBuilder) throws IOException {
+    super(settingsBuilder);
+
+    listVersionsSettings = settingsBuilder.listVersionsSettings().build();
+    getVersionSettings = settingsBuilder.getVersionSettings().build();
+    createVersionSettings = settingsBuilder.createVersionSettings().build();
+    updateVersionSettings = settingsBuilder.updateVersionSettings().build();
+    deleteVersionSettings = settingsBuilder.deleteVersionSettings().build();
+  }
+
+  /** Builder for VersionsStubSettings. */
+  public static class Builder extends StubSettings.Builder {
+    private final ImmutableList> unaryMethodSettingsBuilders;
+    private final PagedCallSettings.Builder<
+            ListVersionsRequest, ListVersionsResponse, ListVersionsPagedResponse>
+        listVersionsSettings;
+    private final UnaryCallSettings.Builder getVersionSettings;
+    private final UnaryCallSettings.Builder createVersionSettings;
+    private final UnaryCallSettings.Builder updateVersionSettings;
+    private final UnaryCallSettings.Builder deleteVersionSettings;
+    private static final ImmutableMap>
+        RETRYABLE_CODE_DEFINITIONS;
+
+    static {
+      ImmutableMap.Builder> definitions =
+          ImmutableMap.builder();
+      definitions.put(
+          "retry_policy_0_codes",
+          ImmutableSet.copyOf(Lists.newArrayList(StatusCode.Code.UNAVAILABLE)));
+      RETRYABLE_CODE_DEFINITIONS = definitions.build();
+    }
+
+    private static final ImmutableMap RETRY_PARAM_DEFINITIONS;
+
+    static {
+      ImmutableMap.Builder definitions = ImmutableMap.builder();
+      RetrySettings settings = null;
+      settings =
+          RetrySettings.newBuilder()
+              .setInitialRetryDelay(Duration.ofMillis(100L))
+              .setRetryDelayMultiplier(1.3)
+              .setMaxRetryDelay(Duration.ofMillis(60000L))
+              .setInitialRpcTimeout(Duration.ofMillis(60000L))
+              .setRpcTimeoutMultiplier(1.0)
+              .setMaxRpcTimeout(Duration.ofMillis(60000L))
+              .setTotalTimeout(Duration.ofMillis(60000L))
+              .build();
+      definitions.put("retry_policy_0_params", settings);
+      RETRY_PARAM_DEFINITIONS = definitions.build();
+    }
+
+    protected Builder() {
+      this(((ClientContext) null));
+    }
+
+    protected Builder(ClientContext clientContext) {
+      super(clientContext);
+
+      listVersionsSettings = PagedCallSettings.newBuilder(LIST_VERSIONS_PAGE_STR_FACT);
+      getVersionSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+      createVersionSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+      updateVersionSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+      deleteVersionSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      unaryMethodSettingsBuilders =
+          ImmutableList.>of(
+              listVersionsSettings,
+              getVersionSettings,
+              createVersionSettings,
+              updateVersionSettings,
+              deleteVersionSettings);
+      initDefaults(this);
+    }
+
+    protected Builder(VersionsStubSettings settings) {
+      super(settings);
+
+      listVersionsSettings = settings.listVersionsSettings.toBuilder();
+      getVersionSettings = settings.getVersionSettings.toBuilder();
+      createVersionSettings = settings.createVersionSettings.toBuilder();
+      updateVersionSettings = settings.updateVersionSettings.toBuilder();
+      deleteVersionSettings = settings.deleteVersionSettings.toBuilder();
+
+      unaryMethodSettingsBuilders =
+          ImmutableList.>of(
+              listVersionsSettings,
+              getVersionSettings,
+              createVersionSettings,
+              updateVersionSettings,
+              deleteVersionSettings);
+    }
+
+    private static Builder createDefault() {
+      Builder builder = new Builder(((ClientContext) null));
+
+      builder.setTransportChannelProvider(defaultTransportChannelProvider());
+      builder.setCredentialsProvider(defaultCredentialsProviderBuilder().build());
+      builder.setInternalHeaderProvider(defaultApiClientHeaderProviderBuilder().build());
+      builder.setEndpoint(getDefaultEndpoint());
+
+      return initDefaults(builder);
+    }
+
+    private static Builder initDefaults(Builder builder) {
+      builder
+          .listVersionsSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_0_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_0_params"));
+
+      builder
+          .getVersionSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_0_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_0_params"));
+
+      builder
+          .createVersionSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_0_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_0_params"));
+
+      builder
+          .updateVersionSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_0_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_0_params"));
+
+      builder
+          .deleteVersionSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_0_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_0_params"));
+
+      return builder;
+    }
+
+    // NEXT_MAJOR_VER: remove 'throws Exception'.
+    /**
+     * Applies the given settings updater function to all of the unary API methods in this service.
+     *
+     * 
Note: This method does not support applying settings to streaming methods.
+     */
+    public Builder applyToAllUnaryMethods(
+        ApiFunction, Void> settingsUpdater) throws Exception {
+      super.applyToAllUnaryMethods(unaryMethodSettingsBuilders, settingsUpdater);
+      return this;
+    }
+
+    public ImmutableList> unaryMethodSettingsBuilders() {
+      return unaryMethodSettingsBuilders;
+    }
+
+    /** Returns the builder for the settings used for calls to listVersions. */
+    public PagedCallSettings.Builder<
+            ListVersionsRequest, ListVersionsResponse, ListVersionsPagedResponse>
+        listVersionsSettings() {
+      return listVersionsSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to getVersion. */
+    public UnaryCallSettings.Builder getVersionSettings() {
+      return getVersionSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to createVersion. */
+    public UnaryCallSettings.Builder createVersionSettings() {
+      return createVersionSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to updateVersion. */
+    public UnaryCallSettings.Builder updateVersionSettings() {
+      return updateVersionSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to deleteVersion. */
+    public UnaryCallSettings.Builder deleteVersionSettings() {
+      return deleteVersionSettings;
+    }
+
+    @Override
+    public VersionsStubSettings build() throws IOException {
+      return new VersionsStubSettings(this);
+    }
+  }
+}
diff --git a/google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/EnvironmentsClientTest.java b/google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/EnvironmentsClientTest.java
index b43ba0f52..0d28c2787 100644
--- a/google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/EnvironmentsClientTest.java
+++ b/google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/EnvironmentsClientTest.java
@@ -16,6 +16,7 @@
 
 package com.google.cloud.dialogflow.v2beta1;
 
+import static com.google.cloud.dialogflow.v2beta1.EnvironmentsClient.GetEnvironmentHistoryPagedResponse;
 import static com.google.cloud.dialogflow.v2beta1.EnvironmentsClient.ListEnvironmentsPagedResponse;
 
 import com.google.api.gax.core.NoCredentialsProvider;
@@ -27,6 +28,9 @@
 import com.google.api.gax.rpc.InvalidArgumentException;
 import com.google.common.collect.Lists;
 import com.google.protobuf.AbstractMessage;
+import com.google.protobuf.Empty;
+import com.google.protobuf.FieldMask;
+import com.google.protobuf.Timestamp;
 import io.grpc.StatusRuntimeException;
 import java.io.IOException;
 import java.util.Arrays;
@@ -165,4 +169,273 @@ public void listEnvironmentsExceptionTest2() throws Exception {
       // Expected exception.
     }
   }
+
+  @Test
+  public void getEnvironmentTest() throws Exception {
+    Environment expectedResponse =
+        Environment.newBuilder()
+            .setName(
+                EnvironmentName.ofProjectEnvironmentName("[PROJECT]", "[ENVIRONMENT]").toString())
+            .setDescription("description-1724546052")
+            .setAgentVersion("agentVersion1928000019")
+            .setUpdateTime(Timestamp.newBuilder().build())
+            .setTextToSpeechSettings(TextToSpeechSettings.newBuilder().build())
+            .setFulfillment(Fulfillment.newBuilder().build())
+            .build();
+    mockEnvironments.addResponse(expectedResponse);
+
+    GetEnvironmentRequest request =
+        GetEnvironmentRequest.newBuilder()
+            .setName(
+                EnvironmentName.ofProjectEnvironmentName("[PROJECT]", "[ENVIRONMENT]").toString())
+            .build();
+
+    Environment actualResponse = client.getEnvironment(request);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List actualRequests = mockEnvironments.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    GetEnvironmentRequest actualRequest = ((GetEnvironmentRequest) actualRequests.get(0));
+
+    Assert.assertEquals(request.getName(), actualRequest.getName());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void getEnvironmentExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockEnvironments.addException(exception);
+
+    try {
+      GetEnvironmentRequest request =
+          GetEnvironmentRequest.newBuilder()
+              .setName(
+                  EnvironmentName.ofProjectEnvironmentName("[PROJECT]", "[ENVIRONMENT]").toString())
+              .build();
+      client.getEnvironment(request);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+
+  @Test
+  public void createEnvironmentTest() throws Exception {
+    Environment expectedResponse =
+        Environment.newBuilder()
+            .setName(
+                EnvironmentName.ofProjectEnvironmentName("[PROJECT]", "[ENVIRONMENT]").toString())
+            .setDescription("description-1724546052")
+            .setAgentVersion("agentVersion1928000019")
+            .setUpdateTime(Timestamp.newBuilder().build())
+            .setTextToSpeechSettings(TextToSpeechSettings.newBuilder().build())
+            .setFulfillment(Fulfillment.newBuilder().build())
+            .build();
+    mockEnvironments.addResponse(expectedResponse);
+
+    CreateEnvironmentRequest request =
+        CreateEnvironmentRequest.newBuilder()
+            .setParent(
+                EnvironmentName.ofProjectEnvironmentName("[PROJECT]", "[ENVIRONMENT]").toString())
+            .setEnvironment(Environment.newBuilder().build())
+            .setEnvironmentId("environmentId-950205810")
+            .build();
+
+    Environment actualResponse = client.createEnvironment(request);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List actualRequests = mockEnvironments.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    CreateEnvironmentRequest actualRequest = ((CreateEnvironmentRequest) actualRequests.get(0));
+
+    Assert.assertEquals(request.getParent(), actualRequest.getParent());
+    Assert.assertEquals(request.getEnvironment(), actualRequest.getEnvironment());
+    Assert.assertEquals(request.getEnvironmentId(), actualRequest.getEnvironmentId());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void createEnvironmentExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockEnvironments.addException(exception);
+
+    try {
+      CreateEnvironmentRequest request =
+          CreateEnvironmentRequest.newBuilder()
+              .setParent(
+                  EnvironmentName.ofProjectEnvironmentName("[PROJECT]", "[ENVIRONMENT]").toString())
+              .setEnvironment(Environment.newBuilder().build())
+              .setEnvironmentId("environmentId-950205810")
+              .build();
+      client.createEnvironment(request);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+
+  @Test
+  public void updateEnvironmentTest() throws Exception {
+    Environment expectedResponse =
+        Environment.newBuilder()
+            .setName(
+                EnvironmentName.ofProjectEnvironmentName("[PROJECT]", "[ENVIRONMENT]").toString())
+            .setDescription("description-1724546052")
+            .setAgentVersion("agentVersion1928000019")
+            .setUpdateTime(Timestamp.newBuilder().build())
+            .setTextToSpeechSettings(TextToSpeechSettings.newBuilder().build())
+            .setFulfillment(Fulfillment.newBuilder().build())
+            .build();
+    mockEnvironments.addResponse(expectedResponse);
+
+    UpdateEnvironmentRequest request =
+        UpdateEnvironmentRequest.newBuilder()
+            .setEnvironment(Environment.newBuilder().build())
+            .setUpdateMask(FieldMask.newBuilder().build())
+            .setAllowLoadToDraftAndDiscardChanges(true)
+            .build();
+
+    Environment actualResponse = client.updateEnvironment(request);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List actualRequests = mockEnvironments.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    UpdateEnvironmentRequest actualRequest = ((UpdateEnvironmentRequest) actualRequests.get(0));
+
+    Assert.assertEquals(request.getEnvironment(), actualRequest.getEnvironment());
+    Assert.assertEquals(request.getUpdateMask(), actualRequest.getUpdateMask());
+    Assert.assertEquals(
+        request.getAllowLoadToDraftAndDiscardChanges(),
+        actualRequest.getAllowLoadToDraftAndDiscardChanges());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void updateEnvironmentExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockEnvironments.addException(exception);
+
+    try {
+      UpdateEnvironmentRequest request =
+          UpdateEnvironmentRequest.newBuilder()
+              .setEnvironment(Environment.newBuilder().build())
+              .setUpdateMask(FieldMask.newBuilder().build())
+              .setAllowLoadToDraftAndDiscardChanges(true)
+              .build();
+      client.updateEnvironment(request);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+
+  @Test
+  public void deleteEnvironmentTest() throws Exception {
+    Empty expectedResponse = Empty.newBuilder().build();
+    mockEnvironments.addResponse(expectedResponse);
+
+    DeleteEnvironmentRequest request =
+        DeleteEnvironmentRequest.newBuilder()
+            .setName(
+                EnvironmentName.ofProjectEnvironmentName("[PROJECT]", "[ENVIRONMENT]").toString())
+            .build();
+
+    client.deleteEnvironment(request);
+
+    List actualRequests = mockEnvironments.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    DeleteEnvironmentRequest actualRequest = ((DeleteEnvironmentRequest) actualRequests.get(0));
+
+    Assert.assertEquals(request.getName(), actualRequest.getName());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void deleteEnvironmentExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockEnvironments.addException(exception);
+
+    try {
+      DeleteEnvironmentRequest request =
+          DeleteEnvironmentRequest.newBuilder()
+              .setName(
+                  EnvironmentName.ofProjectEnvironmentName("[PROJECT]", "[ENVIRONMENT]").toString())
+              .build();
+      client.deleteEnvironment(request);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+
+  @Test
+  public void getEnvironmentHistoryTest() throws Exception {
+    EnvironmentHistory.Entry responsesElement = EnvironmentHistory.Entry.newBuilder().build();
+    EnvironmentHistory expectedResponse =
+        EnvironmentHistory.newBuilder()
+            .setNextPageToken("")
+            .addAllEntries(Arrays.asList(responsesElement))
+            .build();
+    mockEnvironments.addResponse(expectedResponse);
+
+    GetEnvironmentHistoryRequest request =
+        GetEnvironmentHistoryRequest.newBuilder()
+            .setParent(
+                EnvironmentName.ofProjectEnvironmentName("[PROJECT]", "[ENVIRONMENT]").toString())
+            .setPageSize(883849137)
+            .setPageToken("pageToken873572522")
+            .build();
+
+    GetEnvironmentHistoryPagedResponse pagedListResponse = client.getEnvironmentHistory(request);
+
+    List resources = Lists.newArrayList(pagedListResponse.iterateAll());
+
+    Assert.assertEquals(1, resources.size());
+    Assert.assertEquals(expectedResponse.getEntriesList().get(0), resources.get(0));
+
+    List actualRequests = mockEnvironments.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    GetEnvironmentHistoryRequest actualRequest =
+        ((GetEnvironmentHistoryRequest) actualRequests.get(0));
+
+    Assert.assertEquals(request.getParent(), actualRequest.getParent());
+    Assert.assertEquals(request.getPageSize(), actualRequest.getPageSize());
+    Assert.assertEquals(request.getPageToken(), actualRequest.getPageToken());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void getEnvironmentHistoryExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockEnvironments.addException(exception);
+
+    try {
+      GetEnvironmentHistoryRequest request =
+          GetEnvironmentHistoryRequest.newBuilder()
+              .setParent(
+                  EnvironmentName.ofProjectEnvironmentName("[PROJECT]", "[ENVIRONMENT]").toString())
+              .setPageSize(883849137)
+              .setPageToken("pageToken873572522")
+              .build();
+      client.getEnvironmentHistory(request);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
 }
diff --git a/google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/FulfillmentsClientTest.java b/google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/FulfillmentsClientTest.java
new file mode 100644
index 000000000..cedf90996
--- /dev/null
+++ b/google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/FulfillmentsClientTest.java
@@ -0,0 +1,205 @@
+/*
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.dialogflow.v2beta1;
+
+import com.google.api.gax.core.NoCredentialsProvider;
+import com.google.api.gax.grpc.GaxGrpcProperties;
+import com.google.api.gax.grpc.testing.LocalChannelProvider;
+import com.google.api.gax.grpc.testing.MockGrpcService;
+import com.google.api.gax.grpc.testing.MockServiceHelper;
+import com.google.api.gax.rpc.ApiClientHeaderProvider;
+import com.google.api.gax.rpc.InvalidArgumentException;
+import com.google.protobuf.AbstractMessage;
+import com.google.protobuf.FieldMask;
+import io.grpc.StatusRuntimeException;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.UUID;
+import javax.annotation.Generated;
+import org.junit.After;
+import org.junit.AfterClass;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+@Generated("by gapic-generator-java")
+public class FulfillmentsClientTest {
+  private static MockServiceHelper mockServiceHelper;
+  private static MockFulfillments mockFulfillments;
+  private FulfillmentsClient client;
+  private LocalChannelProvider channelProvider;
+
+  @BeforeClass
+  public static void startStaticServer() {
+    mockFulfillments = new MockFulfillments();
+    mockServiceHelper =
+        new MockServiceHelper(
+            UUID.randomUUID().toString(), Arrays.asList(mockFulfillments));
+    mockServiceHelper.start();
+  }
+
+  @AfterClass
+  public static void stopServer() {
+    mockServiceHelper.stop();
+  }
+
+  @Before
+  public void setUp() throws IOException {
+    mockServiceHelper.reset();
+    channelProvider = mockServiceHelper.createChannelProvider();
+    FulfillmentsSettings settings =
+        FulfillmentsSettings.newBuilder()
+            .setTransportChannelProvider(channelProvider)
+            .setCredentialsProvider(NoCredentialsProvider.create())
+            .build();
+    client = FulfillmentsClient.create(settings);
+  }
+
+  @After
+  public void tearDown() throws Exception {
+    client.close();
+  }
+
+  @Test
+  public void getFulfillmentTest() throws Exception {
+    Fulfillment expectedResponse =
+        Fulfillment.newBuilder()
+            .setName(FulfillmentName.ofProjectName("[PROJECT]").toString())
+            .setDisplayName("displayName1714148973")
+            .setEnabled(true)
+            .addAllFeatures(new ArrayList())
+            .build();
+    mockFulfillments.addResponse(expectedResponse);
+
+    FulfillmentName name = FulfillmentName.ofProjectName("[PROJECT]");
+
+    Fulfillment actualResponse = client.getFulfillment(name);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List actualRequests = mockFulfillments.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    GetFulfillmentRequest actualRequest = ((GetFulfillmentRequest) actualRequests.get(0));
+
+    Assert.assertEquals(name.toString(), actualRequest.getName());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void getFulfillmentExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockFulfillments.addException(exception);
+
+    try {
+      FulfillmentName name = FulfillmentName.ofProjectName("[PROJECT]");
+      client.getFulfillment(name);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+
+  @Test
+  public void getFulfillmentTest2() throws Exception {
+    Fulfillment expectedResponse =
+        Fulfillment.newBuilder()
+            .setName(FulfillmentName.ofProjectName("[PROJECT]").toString())
+            .setDisplayName("displayName1714148973")
+            .setEnabled(true)
+            .addAllFeatures(new ArrayList())
+            .build();
+    mockFulfillments.addResponse(expectedResponse);
+
+    String name = "name3373707";
+
+    Fulfillment actualResponse = client.getFulfillment(name);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List actualRequests = mockFulfillments.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    GetFulfillmentRequest actualRequest = ((GetFulfillmentRequest) actualRequests.get(0));
+
+    Assert.assertEquals(name, actualRequest.getName());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void getFulfillmentExceptionTest2() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockFulfillments.addException(exception);
+
+    try {
+      String name = "name3373707";
+      client.getFulfillment(name);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+
+  @Test
+  public void updateFulfillmentTest() throws Exception {
+    Fulfillment expectedResponse =
+        Fulfillment.newBuilder()
+            .setName(FulfillmentName.ofProjectName("[PROJECT]").toString())
+            .setDisplayName("displayName1714148973")
+            .setEnabled(true)
+            .addAllFeatures(new ArrayList())
+            .build();
+    mockFulfillments.addResponse(expectedResponse);
+
+    Fulfillment fulfillment = Fulfillment.newBuilder().build();
+    FieldMask updateMask = FieldMask.newBuilder().build();
+
+    Fulfillment actualResponse = client.updateFulfillment(fulfillment, updateMask);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List actualRequests = mockFulfillments.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    UpdateFulfillmentRequest actualRequest = ((UpdateFulfillmentRequest) actualRequests.get(0));
+
+    Assert.assertEquals(fulfillment, actualRequest.getFulfillment());
+    Assert.assertEquals(updateMask, actualRequest.getUpdateMask());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void updateFulfillmentExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockFulfillments.addException(exception);
+
+    try {
+      Fulfillment fulfillment = Fulfillment.newBuilder().build();
+      FieldMask updateMask = FieldMask.newBuilder().build();
+      client.updateFulfillment(fulfillment, updateMask);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+}
diff --git a/google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/MockEnvironmentsImpl.java b/google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/MockEnvironmentsImpl.java
index 99a86de82..dfb77dc57 100644
--- a/google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/MockEnvironmentsImpl.java
+++ b/google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/MockEnvironmentsImpl.java
@@ -19,6 +19,7 @@
 import com.google.api.core.BetaApi;
 import com.google.cloud.dialogflow.v2beta1.EnvironmentsGrpc.EnvironmentsImplBase;
 import com.google.protobuf.AbstractMessage;
+import com.google.protobuf.Empty;
 import io.grpc.stub.StreamObserver;
 import java.util.ArrayList;
 import java.util.LinkedList;
@@ -78,4 +79,109 @@ public void listEnvironments(
                   Exception.class.getName())));
     }
   }
+
+  @Override
+  public void getEnvironment(
+      GetEnvironmentRequest request, StreamObserver responseObserver) {
+    Object response = responses.poll();
+    if (response instanceof Environment) {
+      requests.add(request);
+      responseObserver.onNext(((Environment) response));
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError(((Exception) response));
+    } else {
+      responseObserver.onError(
+          new IllegalArgumentException(
+              String.format(
+                  "Unrecognized response type %s for method GetEnvironment, expected %s or %s",
+                  response == null ? "null" : response.getClass().getName(),
+                  Environment.class.getName(),
+                  Exception.class.getName())));
+    }
+  }
+
+  @Override
+  public void createEnvironment(
+      CreateEnvironmentRequest request, StreamObserver responseObserver) {
+    Object response = responses.poll();
+    if (response instanceof Environment) {
+      requests.add(request);
+      responseObserver.onNext(((Environment) response));
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError(((Exception) response));
+    } else {
+      responseObserver.onError(
+          new IllegalArgumentException(
+              String.format(
+                  "Unrecognized response type %s for method CreateEnvironment, expected %s or %s",
+                  response == null ? "null" : response.getClass().getName(),
+                  Environment.class.getName(),
+                  Exception.class.getName())));
+    }
+  }
+
+  @Override
+  public void updateEnvironment(
+      UpdateEnvironmentRequest request, StreamObserver responseObserver) {
+    Object response = responses.poll();
+    if (response instanceof Environment) {
+      requests.add(request);
+      responseObserver.onNext(((Environment) response));
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError(((Exception) response));
+    } else {
+      responseObserver.onError(
+          new IllegalArgumentException(
+              String.format(
+                  "Unrecognized response type %s for method UpdateEnvironment, expected %s or %s",
+                  response == null ? "null" : response.getClass().getName(),
+                  Environment.class.getName(),
+                  Exception.class.getName())));
+    }
+  }
+
+  @Override
+  public void deleteEnvironment(
+      DeleteEnvironmentRequest request, StreamObserver responseObserver) {
+    Object response = responses.poll();
+    if (response instanceof Empty) {
+      requests.add(request);
+      responseObserver.onNext(((Empty) response));
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError(((Exception) response));
+    } else {
+      responseObserver.onError(
+          new IllegalArgumentException(
+              String.format(
+                  "Unrecognized response type %s for method DeleteEnvironment, expected %s or %s",
+                  response == null ? "null" : response.getClass().getName(),
+                  Empty.class.getName(),
+                  Exception.class.getName())));
+    }
+  }
+
+  @Override
+  public void getEnvironmentHistory(
+      GetEnvironmentHistoryRequest request, StreamObserver responseObserver) {
+    Object response = responses.poll();
+    if (response instanceof EnvironmentHistory) {
+      requests.add(request);
+      responseObserver.onNext(((EnvironmentHistory) response));
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError(((Exception) response));
+    } else {
+      responseObserver.onError(
+          new IllegalArgumentException(
+              String.format(
+                  "Unrecognized response type %s for method GetEnvironmentHistory, expected %s or %s",
+                  response == null ? "null" : response.getClass().getName(),
+                  EnvironmentHistory.class.getName(),
+                  Exception.class.getName())));
+    }
+  }
 }
diff --git a/google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/MockFulfillments.java b/google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/MockFulfillments.java
new file mode 100644
index 000000000..eb853351c
--- /dev/null
+++ b/google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/MockFulfillments.java
@@ -0,0 +1,59 @@
+/*
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.dialogflow.v2beta1;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.grpc.testing.MockGrpcService;
+import com.google.protobuf.AbstractMessage;
+import io.grpc.ServerServiceDefinition;
+import java.util.List;
+import javax.annotation.Generated;
+
+@BetaApi
+@Generated("by gapic-generator-java")
+public class MockFulfillments implements MockGrpcService {
+  private final MockFulfillmentsImpl serviceImpl;
+
+  public MockFulfillments() {
+    serviceImpl = new MockFulfillmentsImpl();
+  }
+
+  @Override
+  public List getRequests() {
+    return serviceImpl.getRequests();
+  }
+
+  @Override
+  public void addResponse(AbstractMessage response) {
+    serviceImpl.addResponse(response);
+  }
+
+  @Override
+  public void addException(Exception exception) {
+    serviceImpl.addException(exception);
+  }
+
+  @Override
+  public ServerServiceDefinition getServiceDefinition() {
+    return serviceImpl.bindService();
+  }
+
+  @Override
+  public void reset() {
+    serviceImpl.reset();
+  }
+}
diff --git a/google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/MockFulfillmentsImpl.java b/google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/MockFulfillmentsImpl.java
new file mode 100644
index 000000000..8f625a03a
--- /dev/null
+++ b/google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/MockFulfillmentsImpl.java
@@ -0,0 +1,102 @@
+/*
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.dialogflow.v2beta1;
+
+import com.google.api.core.BetaApi;
+import com.google.cloud.dialogflow.v2beta1.FulfillmentsGrpc.FulfillmentsImplBase;
+import com.google.protobuf.AbstractMessage;
+import io.grpc.stub.StreamObserver;
+import java.util.ArrayList;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Queue;
+import javax.annotation.Generated;
+
+@BetaApi
+@Generated("by gapic-generator-java")
+public class MockFulfillmentsImpl extends FulfillmentsImplBase {
+  private List requests;
+  private Queue responses;
+
+  public MockFulfillmentsImpl() {
+    requests = new ArrayList<>();
+    responses = new LinkedList<>();
+  }
+
+  public List getRequests() {
+    return requests;
+  }
+
+  public void addResponse(AbstractMessage response) {
+    responses.add(response);
+  }
+
+  public void setResponses(List responses) {
+    this.responses = new LinkedList(responses);
+  }
+
+  public void addException(Exception exception) {
+    responses.add(exception);
+  }
+
+  public void reset() {
+    requests = new ArrayList<>();
+    responses = new LinkedList<>();
+  }
+
+  @Override
+  public void getFulfillment(
+      GetFulfillmentRequest request, StreamObserver responseObserver) {
+    Object response = responses.poll();
+    if (response instanceof Fulfillment) {
+      requests.add(request);
+      responseObserver.onNext(((Fulfillment) response));
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError(((Exception) response));
+    } else {
+      responseObserver.onError(
+          new IllegalArgumentException(
+              String.format(
+                  "Unrecognized response type %s for method GetFulfillment, expected %s or %s",
+                  response == null ? "null" : response.getClass().getName(),
+                  Fulfillment.class.getName(),
+                  Exception.class.getName())));
+    }
+  }
+
+  @Override
+  public void updateFulfillment(
+      UpdateFulfillmentRequest request, StreamObserver responseObserver) {
+    Object response = responses.poll();
+    if (response instanceof Fulfillment) {
+      requests.add(request);
+      responseObserver.onNext(((Fulfillment) response));
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError(((Exception) response));
+    } else {
+      responseObserver.onError(
+          new IllegalArgumentException(
+              String.format(
+                  "Unrecognized response type %s for method UpdateFulfillment, expected %s or %s",
+                  response == null ? "null" : response.getClass().getName(),
+                  Fulfillment.class.getName(),
+                  Exception.class.getName())));
+    }
+  }
+}
diff --git a/google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/MockVersions.java b/google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/MockVersions.java
new file mode 100644
index 000000000..7178924be
--- /dev/null
+++ b/google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/MockVersions.java
@@ -0,0 +1,59 @@
+/*
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.dialogflow.v2beta1;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.grpc.testing.MockGrpcService;
+import com.google.protobuf.AbstractMessage;
+import io.grpc.ServerServiceDefinition;
+import java.util.List;
+import javax.annotation.Generated;
+
+@BetaApi
+@Generated("by gapic-generator-java")
+public class MockVersions implements MockGrpcService {
+  private final MockVersionsImpl serviceImpl;
+
+  public MockVersions() {
+    serviceImpl = new MockVersionsImpl();
+  }
+
+  @Override
+  public List getRequests() {
+    return serviceImpl.getRequests();
+  }
+
+  @Override
+  public void addResponse(AbstractMessage response) {
+    serviceImpl.addResponse(response);
+  }
+
+  @Override
+  public void addException(Exception exception) {
+    serviceImpl.addException(exception);
+  }
+
+  @Override
+  public ServerServiceDefinition getServiceDefinition() {
+    return serviceImpl.bindService();
+  }
+
+  @Override
+  public void reset() {
+    serviceImpl.reset();
+  }
+}
diff --git a/google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/MockVersionsImpl.java b/google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/MockVersionsImpl.java
new file mode 100644
index 000000000..5833bf010
--- /dev/null
+++ b/google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/MockVersionsImpl.java
@@ -0,0 +1,164 @@
+/*
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.dialogflow.v2beta1;
+
+import com.google.api.core.BetaApi;
+import com.google.cloud.dialogflow.v2beta1.VersionsGrpc.VersionsImplBase;
+import com.google.protobuf.AbstractMessage;
+import com.google.protobuf.Empty;
+import io.grpc.stub.StreamObserver;
+import java.util.ArrayList;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Queue;
+import javax.annotation.Generated;
+
+@BetaApi
+@Generated("by gapic-generator-java")
+public class MockVersionsImpl extends VersionsImplBase {
+  private List requests;
+  private Queue responses;
+
+  public MockVersionsImpl() {
+    requests = new ArrayList<>();
+    responses = new LinkedList<>();
+  }
+
+  public List getRequests() {
+    return requests;
+  }
+
+  public void addResponse(AbstractMessage response) {
+    responses.add(response);
+  }
+
+  public void setResponses(List responses) {
+    this.responses = new LinkedList(responses);
+  }
+
+  public void addException(Exception exception) {
+    responses.add(exception);
+  }
+
+  public void reset() {
+    requests = new ArrayList<>();
+    responses = new LinkedList<>();
+  }
+
+  @Override
+  public void listVersions(
+      ListVersionsRequest request, StreamObserver responseObserver) {
+    Object response = responses.poll();
+    if (response instanceof ListVersionsResponse) {
+      requests.add(request);
+      responseObserver.onNext(((ListVersionsResponse) response));
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError(((Exception) response));
+    } else {
+      responseObserver.onError(
+          new IllegalArgumentException(
+              String.format(
+                  "Unrecognized response type %s for method ListVersions, expected %s or %s",
+                  response == null ? "null" : response.getClass().getName(),
+                  ListVersionsResponse.class.getName(),
+                  Exception.class.getName())));
+    }
+  }
+
+  @Override
+  public void getVersion(GetVersionRequest request, StreamObserver responseObserver) {
+    Object response = responses.poll();
+    if (response instanceof Version) {
+      requests.add(request);
+      responseObserver.onNext(((Version) response));
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError(((Exception) response));
+    } else {
+      responseObserver.onError(
+          new IllegalArgumentException(
+              String.format(
+                  "Unrecognized response type %s for method GetVersion, expected %s or %s",
+                  response == null ? "null" : response.getClass().getName(),
+                  Version.class.getName(),
+                  Exception.class.getName())));
+    }
+  }
+
+  @Override
+  public void createVersion(
+      CreateVersionRequest request, StreamObserver responseObserver) {
+    Object response = responses.poll();
+    if (response instanceof Version) {
+      requests.add(request);
+      responseObserver.onNext(((Version) response));
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError(((Exception) response));
+    } else {
+      responseObserver.onError(
+          new IllegalArgumentException(
+              String.format(
+                  "Unrecognized response type %s for method CreateVersion, expected %s or %s",
+                  response == null ? "null" : response.getClass().getName(),
+                  Version.class.getName(),
+                  Exception.class.getName())));
+    }
+  }
+
+  @Override
+  public void updateVersion(
+      UpdateVersionRequest request, StreamObserver responseObserver) {
+    Object response = responses.poll();
+    if (response instanceof Version) {
+      requests.add(request);
+      responseObserver.onNext(((Version) response));
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError(((Exception) response));
+    } else {
+      responseObserver.onError(
+          new IllegalArgumentException(
+              String.format(
+                  "Unrecognized response type %s for method UpdateVersion, expected %s or %s",
+                  response == null ? "null" : response.getClass().getName(),
+                  Version.class.getName(),
+                  Exception.class.getName())));
+    }
+  }
+
+  @Override
+  public void deleteVersion(DeleteVersionRequest request, StreamObserver responseObserver) {
+    Object response = responses.poll();
+    if (response instanceof Empty) {
+      requests.add(request);
+      responseObserver.onNext(((Empty) response));
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError(((Exception) response));
+    } else {
+      responseObserver.onError(
+          new IllegalArgumentException(
+              String.format(
+                  "Unrecognized response type %s for method DeleteVersion, expected %s or %s",
+                  response == null ? "null" : response.getClass().getName(),
+                  Empty.class.getName(),
+                  Exception.class.getName())));
+    }
+  }
+}
diff --git a/google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/VersionsClientTest.java b/google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/VersionsClientTest.java
new file mode 100644
index 000000000..bb37c3b51
--- /dev/null
+++ b/google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/VersionsClientTest.java
@@ -0,0 +1,453 @@
+/*
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.dialogflow.v2beta1;
+
+import static com.google.cloud.dialogflow.v2beta1.VersionsClient.ListVersionsPagedResponse;
+
+import com.google.api.gax.core.NoCredentialsProvider;
+import com.google.api.gax.grpc.GaxGrpcProperties;
+import com.google.api.gax.grpc.testing.LocalChannelProvider;
+import com.google.api.gax.grpc.testing.MockGrpcService;
+import com.google.api.gax.grpc.testing.MockServiceHelper;
+import com.google.api.gax.rpc.ApiClientHeaderProvider;
+import com.google.api.gax.rpc.InvalidArgumentException;
+import com.google.common.collect.Lists;
+import com.google.protobuf.AbstractMessage;
+import com.google.protobuf.Empty;
+import com.google.protobuf.FieldMask;
+import com.google.protobuf.Timestamp;
+import io.grpc.StatusRuntimeException;
+import java.io.IOException;
+import java.util.Arrays;
+import java.util.List;
+import java.util.UUID;
+import javax.annotation.Generated;
+import org.junit.After;
+import org.junit.AfterClass;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+@Generated("by gapic-generator-java")
+public class VersionsClientTest {
+  private static MockVersions mockVersions;
+  private static MockServiceHelper mockServiceHelper;
+  private VersionsClient client;
+  private LocalChannelProvider channelProvider;
+
+  @BeforeClass
+  public static void startStaticServer() {
+    mockVersions = new MockVersions();
+    mockServiceHelper =
+        new MockServiceHelper(
+            UUID.randomUUID().toString(), Arrays.asList(mockVersions));
+    mockServiceHelper.start();
+  }
+
+  @AfterClass
+  public static void stopServer() {
+    mockServiceHelper.stop();
+  }
+
+  @Before
+  public void setUp() throws IOException {
+    mockServiceHelper.reset();
+    channelProvider = mockServiceHelper.createChannelProvider();
+    VersionsSettings settings =
+        VersionsSettings.newBuilder()
+            .setTransportChannelProvider(channelProvider)
+            .setCredentialsProvider(NoCredentialsProvider.create())
+            .build();
+    client = VersionsClient.create(settings);
+  }
+
+  @After
+  public void tearDown() throws Exception {
+    client.close();
+  }
+
+  @Test
+  public void listVersionsTest() throws Exception {
+    Version responsesElement = Version.newBuilder().build();
+    ListVersionsResponse expectedResponse =
+        ListVersionsResponse.newBuilder()
+            .setNextPageToken("")
+            .addAllVersions(Arrays.asList(responsesElement))
+            .build();
+    mockVersions.addResponse(expectedResponse);
+
+    AgentName parent = AgentName.ofProjectAgentName("[PROJECT]");
+
+    ListVersionsPagedResponse pagedListResponse = client.listVersions(parent);
+
+    List resources = Lists.newArrayList(pagedListResponse.iterateAll());
+
+    Assert.assertEquals(1, resources.size());
+    Assert.assertEquals(expectedResponse.getVersionsList().get(0), resources.get(0));
+
+    List actualRequests = mockVersions.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    ListVersionsRequest actualRequest = ((ListVersionsRequest) actualRequests.get(0));
+
+    Assert.assertEquals(parent.toString(), actualRequest.getParent());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void listVersionsExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockVersions.addException(exception);
+
+    try {
+      AgentName parent = AgentName.ofProjectAgentName("[PROJECT]");
+      client.listVersions(parent);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+
+  @Test
+  public void listVersionsTest2() throws Exception {
+    Version responsesElement = Version.newBuilder().build();
+    ListVersionsResponse expectedResponse =
+        ListVersionsResponse.newBuilder()
+            .setNextPageToken("")
+            .addAllVersions(Arrays.asList(responsesElement))
+            .build();
+    mockVersions.addResponse(expectedResponse);
+
+    String parent = "parent-995424086";
+
+    ListVersionsPagedResponse pagedListResponse = client.listVersions(parent);
+
+    List resources = Lists.newArrayList(pagedListResponse.iterateAll());
+
+    Assert.assertEquals(1, resources.size());
+    Assert.assertEquals(expectedResponse.getVersionsList().get(0), resources.get(0));
+
+    List actualRequests = mockVersions.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    ListVersionsRequest actualRequest = ((ListVersionsRequest) actualRequests.get(0));
+
+    Assert.assertEquals(parent, actualRequest.getParent());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void listVersionsExceptionTest2() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockVersions.addException(exception);
+
+    try {
+      String parent = "parent-995424086";
+      client.listVersions(parent);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+
+  @Test
+  public void getVersionTest() throws Exception {
+    Version expectedResponse =
+        Version.newBuilder()
+            .setName(VersionName.ofProjectVersionName("[PROJECT]", "[VERSION]").toString())
+            .setDescription("description-1724546052")
+            .setVersionNumber(135927952)
+            .setCreateTime(Timestamp.newBuilder().build())
+            .build();
+    mockVersions.addResponse(expectedResponse);
+
+    VersionName name = VersionName.ofProjectVersionName("[PROJECT]", "[VERSION]");
+
+    Version actualResponse = client.getVersion(name);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List actualRequests = mockVersions.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    GetVersionRequest actualRequest = ((GetVersionRequest) actualRequests.get(0));
+
+    Assert.assertEquals(name.toString(), actualRequest.getName());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void getVersionExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockVersions.addException(exception);
+
+    try {
+      VersionName name = VersionName.ofProjectVersionName("[PROJECT]", "[VERSION]");
+      client.getVersion(name);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+
+  @Test
+  public void getVersionTest2() throws Exception {
+    Version expectedResponse =
+        Version.newBuilder()
+            .setName(VersionName.ofProjectVersionName("[PROJECT]", "[VERSION]").toString())
+            .setDescription("description-1724546052")
+            .setVersionNumber(135927952)
+            .setCreateTime(Timestamp.newBuilder().build())
+            .build();
+    mockVersions.addResponse(expectedResponse);
+
+    String name = "name3373707";
+
+    Version actualResponse = client.getVersion(name);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List actualRequests = mockVersions.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    GetVersionRequest actualRequest = ((GetVersionRequest) actualRequests.get(0));
+
+    Assert.assertEquals(name, actualRequest.getName());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void getVersionExceptionTest2() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockVersions.addException(exception);
+
+    try {
+      String name = "name3373707";
+      client.getVersion(name);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+
+  @Test
+  public void createVersionTest() throws Exception {
+    Version expectedResponse =
+        Version.newBuilder()
+            .setName(VersionName.ofProjectVersionName("[PROJECT]", "[VERSION]").toString())
+            .setDescription("description-1724546052")
+            .setVersionNumber(135927952)
+            .setCreateTime(Timestamp.newBuilder().build())
+            .build();
+    mockVersions.addResponse(expectedResponse);
+
+    AgentName parent = AgentName.ofProjectAgentName("[PROJECT]");
+    Version version = Version.newBuilder().build();
+
+    Version actualResponse = client.createVersion(parent, version);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List actualRequests = mockVersions.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    CreateVersionRequest actualRequest = ((CreateVersionRequest) actualRequests.get(0));
+
+    Assert.assertEquals(parent.toString(), actualRequest.getParent());
+    Assert.assertEquals(version, actualRequest.getVersion());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void createVersionExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockVersions.addException(exception);
+
+    try {
+      AgentName parent = AgentName.ofProjectAgentName("[PROJECT]");
+      Version version = Version.newBuilder().build();
+      client.createVersion(parent, version);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+
+  @Test
+  public void createVersionTest2() throws Exception {
+    Version expectedResponse =
+        Version.newBuilder()
+            .setName(VersionName.ofProjectVersionName("[PROJECT]", "[VERSION]").toString())
+            .setDescription("description-1724546052")
+            .setVersionNumber(135927952)
+            .setCreateTime(Timestamp.newBuilder().build())
+            .build();
+    mockVersions.addResponse(expectedResponse);
+
+    String parent = "parent-995424086";
+    Version version = Version.newBuilder().build();
+
+    Version actualResponse = client.createVersion(parent, version);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List actualRequests = mockVersions.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    CreateVersionRequest actualRequest = ((CreateVersionRequest) actualRequests.get(0));
+
+    Assert.assertEquals(parent, actualRequest.getParent());
+    Assert.assertEquals(version, actualRequest.getVersion());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void createVersionExceptionTest2() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockVersions.addException(exception);
+
+    try {
+      String parent = "parent-995424086";
+      Version version = Version.newBuilder().build();
+      client.createVersion(parent, version);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+
+  @Test
+  public void updateVersionTest() throws Exception {
+    Version expectedResponse =
+        Version.newBuilder()
+            .setName(VersionName.ofProjectVersionName("[PROJECT]", "[VERSION]").toString())
+            .setDescription("description-1724546052")
+            .setVersionNumber(135927952)
+            .setCreateTime(Timestamp.newBuilder().build())
+            .build();
+    mockVersions.addResponse(expectedResponse);
+
+    Version version = Version.newBuilder().build();
+    FieldMask updateMask = FieldMask.newBuilder().build();
+
+    Version actualResponse = client.updateVersion(version, updateMask);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List actualRequests = mockVersions.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    UpdateVersionRequest actualRequest = ((UpdateVersionRequest) actualRequests.get(0));
+
+    Assert.assertEquals(version, actualRequest.getVersion());
+    Assert.assertEquals(updateMask, actualRequest.getUpdateMask());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void updateVersionExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockVersions.addException(exception);
+
+    try {
+      Version version = Version.newBuilder().build();
+      FieldMask updateMask = FieldMask.newBuilder().build();
+      client.updateVersion(version, updateMask);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+
+  @Test
+  public void deleteVersionTest() throws Exception {
+    Empty expectedResponse = Empty.newBuilder().build();
+    mockVersions.addResponse(expectedResponse);
+
+    VersionName name = VersionName.ofProjectVersionName("[PROJECT]", "[VERSION]");
+
+    client.deleteVersion(name);
+
+    List actualRequests = mockVersions.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    DeleteVersionRequest actualRequest = ((DeleteVersionRequest) actualRequests.get(0));
+
+    Assert.assertEquals(name.toString(), actualRequest.getName());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void deleteVersionExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockVersions.addException(exception);
+
+    try {
+      VersionName name = VersionName.ofProjectVersionName("[PROJECT]", "[VERSION]");
+      client.deleteVersion(name);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+
+  @Test
+  public void deleteVersionTest2() throws Exception {
+    Empty expectedResponse = Empty.newBuilder().build();
+    mockVersions.addResponse(expectedResponse);
+
+    String name = "name3373707";
+
+    client.deleteVersion(name);
+
+    List actualRequests = mockVersions.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    DeleteVersionRequest actualRequest = ((DeleteVersionRequest) actualRequests.get(0));
+
+    Assert.assertEquals(name, actualRequest.getName());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void deleteVersionExceptionTest2() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockVersions.addException(exception);
+
+    try {
+      String name = "name3373707";
+      client.deleteVersion(name);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+}
diff --git a/grpc-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AnswerRecordsGrpc.java b/grpc-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AnswerRecordsGrpc.java
index eeeab40c6..3fc7d3d2a 100644
--- a/grpc-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AnswerRecordsGrpc.java
+++ b/grpc-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AnswerRecordsGrpc.java
@@ -21,8 +21,7 @@
  *
  *
  * 
- * Service for managing
- * [AnswerRecords][google.cloud.dialogflow.v2beta1.AnswerRecord].
+ * Service for managing [AnswerRecords][google.cloud.dialogflow.v2beta1.AnswerRecord].
  * 

  */
 @javax.annotation.Generated(
@@ -221,8 +220,7 @@ public AnswerRecordsFutureStub newStub(
    *
    *
    * 
-   * Service for managing
-   * [AnswerRecords][google.cloud.dialogflow.v2beta1.AnswerRecord].
+   * Service for managing [AnswerRecords][google.cloud.dialogflow.v2beta1.AnswerRecord].
    * 

    */
   public abstract static class AnswerRecordsImplBase implements io.grpc.BindableService {
@@ -307,8 +305,7 @@ public final io.grpc.ServerServiceDefinition bindService() {
    *
    *
    * 
-   * Service for managing
-   * [AnswerRecords][google.cloud.dialogflow.v2beta1.AnswerRecord].
+   * Service for managing [AnswerRecords][google.cloud.dialogflow.v2beta1.AnswerRecord].
    * 

    */
   public static final class AnswerRecordsStub
@@ -381,8 +378,7 @@ public void updateAnswerRecord(
    *
    *
    * 
-   * Service for managing
-   * [AnswerRecords][google.cloud.dialogflow.v2beta1.AnswerRecord].
+   * Service for managing [AnswerRecords][google.cloud.dialogflow.v2beta1.AnswerRecord].
    * 

    */
   public static final class AnswerRecordsBlockingStub
@@ -444,8 +440,7 @@ public com.google.cloud.dialogflow.v2beta1.AnswerRecord updateAnswerRecord(
    *
    *
    * 
-   * Service for managing
-   * [AnswerRecords][google.cloud.dialogflow.v2beta1.AnswerRecord].
+   * Service for managing [AnswerRecords][google.cloud.dialogflow.v2beta1.AnswerRecord].
    * 

    */
   public static final class AnswerRecordsFutureStub
diff --git a/grpc-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ConversationsGrpc.java b/grpc-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ConversationsGrpc.java
index e9286243c..283e061e8 100644
--- a/grpc-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ConversationsGrpc.java
+++ b/grpc-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ConversationsGrpc.java
@@ -21,8 +21,7 @@
  *
  *
  * 
- * Service for managing
- * [Conversations][google.cloud.dialogflow.v2beta1.Conversation].
+ * Service for managing [Conversations][google.cloud.dialogflow.v2beta1.Conversation].
  * 

  */
 @javax.annotation.Generated(
@@ -366,8 +365,7 @@ public ConversationsFutureStub newStub(
    *
    *
    * 
-   * Service for managing
-   * [Conversations][google.cloud.dialogflow.v2beta1.Conversation].
+   * Service for managing [Conversations][google.cloud.dialogflow.v2beta1.Conversation].
    * 

    */
   public abstract static class ConversationsImplBase implements io.grpc.BindableService {
@@ -385,14 +383,11 @@ public abstract static class ConversationsImplBase implements io.grpc.BindableSe
      * user queries.
      * For Assist Stage, there's no dialogflow agent responding to user queries.
      * But we will provide suggestions which are generated from conversation.
-     * If
-     * [Conversation.conversation_profile][google.cloud.dialogflow.v2beta1.Conversation.conversation_profile]
-     * is configured for a dialogflow agent, conversation will start from
-     * `Automated Agent Stage`, otherwise, it will start from `Assist Stage`. And
-     * during `Automated Agent Stage`, once an
-     * [Intent][google.cloud.dialogflow.v2beta1.Intent] with
-     * [Intent.live_agent_handoff][google.cloud.dialogflow.v2beta1.Intent.live_agent_handoff]
-     * is triggered, conversation will transfer to Assist Stage.
+     * If [Conversation.conversation_profile][google.cloud.dialogflow.v2beta1.Conversation.conversation_profile] is configured for a dialogflow
+     * agent, conversation will start from `Automated Agent Stage`, otherwise, it
+     * will start from `Assist Stage`. And during `Automated Agent Stage`, once an
+     * [Intent][google.cloud.dialogflow.v2beta1.Intent] with [Intent.live_agent_handoff][google.cloud.dialogflow.v2beta1.Intent.live_agent_handoff] is triggered, conversation
+     * will transfer to Assist Stage.
      * 
      */
     public void createConversation(
@@ -537,8 +532,7 @@ public final io.grpc.ServerServiceDefinition bindService() {
    *
    *
    * 
-   * Service for managing
-   * [Conversations][google.cloud.dialogflow.v2beta1.Conversation].
+   * Service for managing [Conversations][google.cloud.dialogflow.v2beta1.Conversation].
    * 

    */
   public static final class ConversationsStub
@@ -565,14 +559,11 @@ protected ConversationsStub build(io.grpc.Channel channel, io.grpc.CallOptions c
      * user queries.
      * For Assist Stage, there's no dialogflow agent responding to user queries.
      * But we will provide suggestions which are generated from conversation.
-     * If
-     * [Conversation.conversation_profile][google.cloud.dialogflow.v2beta1.Conversation.conversation_profile]
-     * is configured for a dialogflow agent, conversation will start from
-     * `Automated Agent Stage`, otherwise, it will start from `Assist Stage`. And
-     * during `Automated Agent Stage`, once an
-     * [Intent][google.cloud.dialogflow.v2beta1.Intent] with
-     * [Intent.live_agent_handoff][google.cloud.dialogflow.v2beta1.Intent.live_agent_handoff]
-     * is triggered, conversation will transfer to Assist Stage.
+     * If [Conversation.conversation_profile][google.cloud.dialogflow.v2beta1.Conversation.conversation_profile] is configured for a dialogflow
+     * agent, conversation will start from `Automated Agent Stage`, otherwise, it
+     * will start from `Assist Stage`. And during `Automated Agent Stage`, once an
+     * [Intent][google.cloud.dialogflow.v2beta1.Intent] with [Intent.live_agent_handoff][google.cloud.dialogflow.v2beta1.Intent.live_agent_handoff] is triggered, conversation
+     * will transfer to Assist Stage.
      * 
      */
     public void createConversation(
@@ -681,8 +672,7 @@ public void listMessages(
    *
    *
    * 
-   * Service for managing
-   * [Conversations][google.cloud.dialogflow.v2beta1.Conversation].
+   * Service for managing [Conversations][google.cloud.dialogflow.v2beta1.Conversation].
    * 

    */
   public static final class ConversationsBlockingStub
@@ -710,14 +700,11 @@ protected ConversationsBlockingStub build(
      * user queries.
      * For Assist Stage, there's no dialogflow agent responding to user queries.
      * But we will provide suggestions which are generated from conversation.
-     * If
-     * [Conversation.conversation_profile][google.cloud.dialogflow.v2beta1.Conversation.conversation_profile]
-     * is configured for a dialogflow agent, conversation will start from
-     * `Automated Agent Stage`, otherwise, it will start from `Assist Stage`. And
-     * during `Automated Agent Stage`, once an
-     * [Intent][google.cloud.dialogflow.v2beta1.Intent] with
-     * [Intent.live_agent_handoff][google.cloud.dialogflow.v2beta1.Intent.live_agent_handoff]
-     * is triggered, conversation will transfer to Assist Stage.
+     * If [Conversation.conversation_profile][google.cloud.dialogflow.v2beta1.Conversation.conversation_profile] is configured for a dialogflow
+     * agent, conversation will start from `Automated Agent Stage`, otherwise, it
+     * will start from `Assist Stage`. And during `Automated Agent Stage`, once an
+     * [Intent][google.cloud.dialogflow.v2beta1.Intent] with [Intent.live_agent_handoff][google.cloud.dialogflow.v2beta1.Intent.live_agent_handoff] is triggered, conversation
+     * will transfer to Assist Stage.
      * 
      */
     public com.google.cloud.dialogflow.v2beta1.Conversation createConversation(
@@ -802,8 +789,7 @@ public com.google.cloud.dialogflow.v2beta1.ListMessagesResponse listMessages(
    *
    *
    * 
-   * Service for managing
-   * [Conversations][google.cloud.dialogflow.v2beta1.Conversation].
+   * Service for managing [Conversations][google.cloud.dialogflow.v2beta1.Conversation].
    * 

    */
   public static final class ConversationsFutureStub
@@ -831,14 +817,11 @@ protected ConversationsFutureStub build(
      * user queries.
      * For Assist Stage, there's no dialogflow agent responding to user queries.
      * But we will provide suggestions which are generated from conversation.
-     * If
-     * [Conversation.conversation_profile][google.cloud.dialogflow.v2beta1.Conversation.conversation_profile]
-     * is configured for a dialogflow agent, conversation will start from
-     * `Automated Agent Stage`, otherwise, it will start from `Assist Stage`. And
-     * during `Automated Agent Stage`, once an
-     * [Intent][google.cloud.dialogflow.v2beta1.Intent] with
-     * [Intent.live_agent_handoff][google.cloud.dialogflow.v2beta1.Intent.live_agent_handoff]
-     * is triggered, conversation will transfer to Assist Stage.
+     * If [Conversation.conversation_profile][google.cloud.dialogflow.v2beta1.Conversation.conversation_profile] is configured for a dialogflow
+     * agent, conversation will start from `Automated Agent Stage`, otherwise, it
+     * will start from `Assist Stage`. And during `Automated Agent Stage`, once an
+     * [Intent][google.cloud.dialogflow.v2beta1.Intent] with [Intent.live_agent_handoff][google.cloud.dialogflow.v2beta1.Intent.live_agent_handoff] is triggered, conversation
+     * will transfer to Assist Stage.
      * 
      */
     public com.google.common.util.concurrent.ListenableFuture<
diff --git a/grpc-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/DocumentsGrpc.java b/grpc-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/DocumentsGrpc.java
index 443a7e49c..66a27f6e0 100644
--- a/grpc-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/DocumentsGrpc.java
+++ b/grpc-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/DocumentsGrpc.java
@@ -454,6 +454,8 @@ public void createDocument(
      *
      * 
      * Create documents by importing data from external sources.
+     * Dialogflow supports up to 350 documents in each request. If you try to
+     * import more, Dialogflow will return an error.
      * 

      */
     public void importDocuments(
@@ -645,6 +647,8 @@ public void createDocument(
      *
      * 
      * Create documents by importing data from external sources.
+     * Dialogflow supports up to 350 documents in each request. If you try to
+     * import more, Dialogflow will return an error.
      * 

      */
     public void importDocuments(
@@ -786,6 +790,8 @@ public com.google.longrunning.Operation createDocument(
      *
      * 
      * Create documents by importing data from external sources.
+     * Dialogflow supports up to 350 documents in each request. If you try to
+     * import more, Dialogflow will return an error.
      * 

      */
     public com.google.longrunning.Operation importDocuments(
@@ -916,6 +922,8 @@ protected DocumentsFutureStub build(io.grpc.Channel channel, io.grpc.CallOptions
      *
      * 
      * Create documents by importing data from external sources.
+     * Dialogflow supports up to 350 documents in each request. If you try to
+     * import more, Dialogflow will return an error.
      * 

      */
     public com.google.common.util.concurrent.ListenableFuture
diff --git a/grpc-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/EnvironmentsGrpc.java b/grpc-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/EnvironmentsGrpc.java
index 9d24d30d6..2fe481e5f 100644
--- a/grpc-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/EnvironmentsGrpc.java
+++ b/grpc-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/EnvironmentsGrpc.java
@@ -81,6 +81,237 @@ private EnvironmentsGrpc() {}
     return getListEnvironmentsMethod;
   }
 
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest,
+          com.google.cloud.dialogflow.v2beta1.Environment>
+      getGetEnvironmentMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "GetEnvironment",
+      requestType = com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest.class,
+      responseType = com.google.cloud.dialogflow.v2beta1.Environment.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest,
+          com.google.cloud.dialogflow.v2beta1.Environment>
+      getGetEnvironmentMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest,
+            com.google.cloud.dialogflow.v2beta1.Environment>
+        getGetEnvironmentMethod;
+    if ((getGetEnvironmentMethod = EnvironmentsGrpc.getGetEnvironmentMethod) == null) {
+      synchronized (EnvironmentsGrpc.class) {
+        if ((getGetEnvironmentMethod = EnvironmentsGrpc.getGetEnvironmentMethod) == null) {
+          EnvironmentsGrpc.getGetEnvironmentMethod =
+              getGetEnvironmentMethod =
+                  io.grpc.MethodDescriptor
+                      .
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "GetEnvironment"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.v2beta1.Environment.getDefaultInstance()))
+                      .setSchemaDescriptor(
+                          new EnvironmentsMethodDescriptorSupplier("GetEnvironment"))
+                      .build();
+        }
+      }
+    }
+    return getGetEnvironmentMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest,
+          com.google.cloud.dialogflow.v2beta1.Environment>
+      getCreateEnvironmentMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "CreateEnvironment",
+      requestType = com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest.class,
+      responseType = com.google.cloud.dialogflow.v2beta1.Environment.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest,
+          com.google.cloud.dialogflow.v2beta1.Environment>
+      getCreateEnvironmentMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest,
+            com.google.cloud.dialogflow.v2beta1.Environment>
+        getCreateEnvironmentMethod;
+    if ((getCreateEnvironmentMethod = EnvironmentsGrpc.getCreateEnvironmentMethod) == null) {
+      synchronized (EnvironmentsGrpc.class) {
+        if ((getCreateEnvironmentMethod = EnvironmentsGrpc.getCreateEnvironmentMethod) == null) {
+          EnvironmentsGrpc.getCreateEnvironmentMethod =
+              getCreateEnvironmentMethod =
+                  io.grpc.MethodDescriptor
+                      .
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "CreateEnvironment"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.v2beta1.Environment.getDefaultInstance()))
+                      .setSchemaDescriptor(
+                          new EnvironmentsMethodDescriptorSupplier("CreateEnvironment"))
+                      .build();
+        }
+      }
+    }
+    return getCreateEnvironmentMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest,
+          com.google.cloud.dialogflow.v2beta1.Environment>
+      getUpdateEnvironmentMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "UpdateEnvironment",
+      requestType = com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest.class,
+      responseType = com.google.cloud.dialogflow.v2beta1.Environment.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest,
+          com.google.cloud.dialogflow.v2beta1.Environment>
+      getUpdateEnvironmentMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest,
+            com.google.cloud.dialogflow.v2beta1.Environment>
+        getUpdateEnvironmentMethod;
+    if ((getUpdateEnvironmentMethod = EnvironmentsGrpc.getUpdateEnvironmentMethod) == null) {
+      synchronized (EnvironmentsGrpc.class) {
+        if ((getUpdateEnvironmentMethod = EnvironmentsGrpc.getUpdateEnvironmentMethod) == null) {
+          EnvironmentsGrpc.getUpdateEnvironmentMethod =
+              getUpdateEnvironmentMethod =
+                  io.grpc.MethodDescriptor
+                      .
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "UpdateEnvironment"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.v2beta1.Environment.getDefaultInstance()))
+                      .setSchemaDescriptor(
+                          new EnvironmentsMethodDescriptorSupplier("UpdateEnvironment"))
+                      .build();
+        }
+      }
+    }
+    return getUpdateEnvironmentMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest, com.google.protobuf.Empty>
+      getDeleteEnvironmentMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "DeleteEnvironment",
+      requestType = com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest.class,
+      responseType = com.google.protobuf.Empty.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest, com.google.protobuf.Empty>
+      getDeleteEnvironmentMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest, com.google.protobuf.Empty>
+        getDeleteEnvironmentMethod;
+    if ((getDeleteEnvironmentMethod = EnvironmentsGrpc.getDeleteEnvironmentMethod) == null) {
+      synchronized (EnvironmentsGrpc.class) {
+        if ((getDeleteEnvironmentMethod = EnvironmentsGrpc.getDeleteEnvironmentMethod) == null) {
+          EnvironmentsGrpc.getDeleteEnvironmentMethod =
+              getDeleteEnvironmentMethod =
+                  io.grpc.MethodDescriptor
+                      .
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "DeleteEnvironment"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.protobuf.Empty.getDefaultInstance()))
+                      .setSchemaDescriptor(
+                          new EnvironmentsMethodDescriptorSupplier("DeleteEnvironment"))
+                      .build();
+        }
+      }
+    }
+    return getDeleteEnvironmentMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest,
+          com.google.cloud.dialogflow.v2beta1.EnvironmentHistory>
+      getGetEnvironmentHistoryMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "GetEnvironmentHistory",
+      requestType = com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest.class,
+      responseType = com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest,
+          com.google.cloud.dialogflow.v2beta1.EnvironmentHistory>
+      getGetEnvironmentHistoryMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest,
+            com.google.cloud.dialogflow.v2beta1.EnvironmentHistory>
+        getGetEnvironmentHistoryMethod;
+    if ((getGetEnvironmentHistoryMethod = EnvironmentsGrpc.getGetEnvironmentHistoryMethod)
+        == null) {
+      synchronized (EnvironmentsGrpc.class) {
+        if ((getGetEnvironmentHistoryMethod = EnvironmentsGrpc.getGetEnvironmentHistoryMethod)
+            == null) {
+          EnvironmentsGrpc.getGetEnvironmentHistoryMethod =
+              getGetEnvironmentHistoryMethod =
+                  io.grpc.MethodDescriptor
+                      .
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(
+                          generateFullMethodName(SERVICE_NAME, "GetEnvironmentHistory"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.v2beta1.EnvironmentHistory
+                                  .getDefaultInstance()))
+                      .setSchemaDescriptor(
+                          new EnvironmentsMethodDescriptorSupplier("GetEnvironmentHistory"))
+                      .build();
+        }
+      }
+    }
+    return getGetEnvironmentHistoryMethod;
+  }
+
   /** Creates a new async stub that supports all call types for the service */
   public static EnvironmentsStub newStub(io.grpc.Channel channel) {
     io.grpc.stub.AbstractStub.StubFactory factory =
@@ -146,6 +377,90 @@ public void listEnvironments(
           getListEnvironmentsMethod(), responseObserver);
     }
 
+    /**
+     *
+     *
+     * 
+     * Retrieves the specified agent environment.
+     * 

+     */
+    public void getEnvironment(
+        com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest request,
+        io.grpc.stub.StreamObserver
+            responseObserver) {
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(
+          getGetEnvironmentMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Creates an agent environment.
+     * 

+     */
+    public void createEnvironment(
+        com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest request,
+        io.grpc.stub.StreamObserver
+            responseObserver) {
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(
+          getCreateEnvironmentMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Updates the specified agent environment.
+     * This method allows you to deploy new agent versions into the environment.
+     * When an environment is pointed to a new agent version by setting
+     * `environment.agent_version`, the environment is temporarily set to the
+     * `LOADING` state. During that time, the environment keeps on serving the
+     * previous version of the agent. After the new agent version is done loading,
+     * the environment is set back to the `RUNNING` state.
+     * You can use "-" as Environment ID in environment name to update version
+     * in "draft" environment. WARNING: this will negate all recent changes to
+     * draft and can't be undone. You may want to save the draft to a version
+     * before calling this function.
+     * 

+     */
+    public void updateEnvironment(
+        com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest request,
+        io.grpc.stub.StreamObserver
+            responseObserver) {
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(
+          getUpdateEnvironmentMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Deletes the specified agent environment.
+     * 

+     */
+    public void deleteEnvironment(
+        com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest request,
+        io.grpc.stub.StreamObserver responseObserver) {
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(
+          getDeleteEnvironmentMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Gets the history of the specified environment.
+     * 

+     */
+    public void getEnvironmentHistory(
+        com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest request,
+        io.grpc.stub.StreamObserver
+            responseObserver) {
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(
+          getGetEnvironmentHistoryMethod(), responseObserver);
+    }
+
     @java.lang.Override
     public final io.grpc.ServerServiceDefinition bindService() {
       return io.grpc.ServerServiceDefinition.builder(getServiceDescriptor())
@@ -156,6 +471,40 @@ public final io.grpc.ServerServiceDefinition bindService() {
                       com.google.cloud.dialogflow.v2beta1.ListEnvironmentsRequest,
                       com.google.cloud.dialogflow.v2beta1.ListEnvironmentsResponse>(
                       this, METHODID_LIST_ENVIRONMENTS)))
+          .addMethod(
+              getGetEnvironmentMethod(),
+              io.grpc.stub.ServerCalls.asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest,
+                      com.google.cloud.dialogflow.v2beta1.Environment>(
+                      this, METHODID_GET_ENVIRONMENT)))
+          .addMethod(
+              getCreateEnvironmentMethod(),
+              io.grpc.stub.ServerCalls.asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest,
+                      com.google.cloud.dialogflow.v2beta1.Environment>(
+                      this, METHODID_CREATE_ENVIRONMENT)))
+          .addMethod(
+              getUpdateEnvironmentMethod(),
+              io.grpc.stub.ServerCalls.asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest,
+                      com.google.cloud.dialogflow.v2beta1.Environment>(
+                      this, METHODID_UPDATE_ENVIRONMENT)))
+          .addMethod(
+              getDeleteEnvironmentMethod(),
+              io.grpc.stub.ServerCalls.asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest,
+                      com.google.protobuf.Empty>(this, METHODID_DELETE_ENVIRONMENT)))
+          .addMethod(
+              getGetEnvironmentHistoryMethod(),
+              io.grpc.stub.ServerCalls.asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest,
+                      com.google.cloud.dialogflow.v2beta1.EnvironmentHistory>(
+                      this, METHODID_GET_ENVIRONMENT_HISTORY)))
           .build();
     }
   }
@@ -194,6 +543,100 @@ public void listEnvironments(
           request,
           responseObserver);
     }
+
+    /**
+     *
+     *
+     * 
+     * Retrieves the specified agent environment.
+     * 

+     */
+    public void getEnvironment(
+        com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest request,
+        io.grpc.stub.StreamObserver
+            responseObserver) {
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
+          getChannel().newCall(getGetEnvironmentMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Creates an agent environment.
+     * 

+     */
+    public void createEnvironment(
+        com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest request,
+        io.grpc.stub.StreamObserver
+            responseObserver) {
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
+          getChannel().newCall(getCreateEnvironmentMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Updates the specified agent environment.
+     * This method allows you to deploy new agent versions into the environment.
+     * When an environment is pointed to a new agent version by setting
+     * `environment.agent_version`, the environment is temporarily set to the
+     * `LOADING` state. During that time, the environment keeps on serving the
+     * previous version of the agent. After the new agent version is done loading,
+     * the environment is set back to the `RUNNING` state.
+     * You can use "-" as Environment ID in environment name to update version
+     * in "draft" environment. WARNING: this will negate all recent changes to
+     * draft and can't be undone. You may want to save the draft to a version
+     * before calling this function.
+     * 

+     */
+    public void updateEnvironment(
+        com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest request,
+        io.grpc.stub.StreamObserver
+            responseObserver) {
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
+          getChannel().newCall(getUpdateEnvironmentMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Deletes the specified agent environment.
+     * 

+     */
+    public void deleteEnvironment(
+        com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest request,
+        io.grpc.stub.StreamObserver responseObserver) {
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
+          getChannel().newCall(getDeleteEnvironmentMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Gets the history of the specified environment.
+     * 

+     */
+    public void getEnvironmentHistory(
+        com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest request,
+        io.grpc.stub.StreamObserver
+            responseObserver) {
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
+          getChannel().newCall(getGetEnvironmentHistoryMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
   }
 
   /**
@@ -227,6 +670,81 @@ public com.google.cloud.dialogflow.v2beta1.ListEnvironmentsResponse listEnvironm
       return io.grpc.stub.ClientCalls.blockingUnaryCall(
           getChannel(), getListEnvironmentsMethod(), getCallOptions(), request);
     }
+
+    /**
+     *
+     *
+     * 
+     * Retrieves the specified agent environment.
+     * 

+     */
+    public com.google.cloud.dialogflow.v2beta1.Environment getEnvironment(
+        com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest request) {
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getGetEnvironmentMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Creates an agent environment.
+     * 

+     */
+    public com.google.cloud.dialogflow.v2beta1.Environment createEnvironment(
+        com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest request) {
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getCreateEnvironmentMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Updates the specified agent environment.
+     * This method allows you to deploy new agent versions into the environment.
+     * When an environment is pointed to a new agent version by setting
+     * `environment.agent_version`, the environment is temporarily set to the
+     * `LOADING` state. During that time, the environment keeps on serving the
+     * previous version of the agent. After the new agent version is done loading,
+     * the environment is set back to the `RUNNING` state.
+     * You can use "-" as Environment ID in environment name to update version
+     * in "draft" environment. WARNING: this will negate all recent changes to
+     * draft and can't be undone. You may want to save the draft to a version
+     * before calling this function.
+     * 

+     */
+    public com.google.cloud.dialogflow.v2beta1.Environment updateEnvironment(
+        com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest request) {
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getUpdateEnvironmentMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Deletes the specified agent environment.
+     * 

+     */
+    public com.google.protobuf.Empty deleteEnvironment(
+        com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest request) {
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getDeleteEnvironmentMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Gets the history of the specified environment.
+     * 

+     */
+    public com.google.cloud.dialogflow.v2beta1.EnvironmentHistory getEnvironmentHistory(
+        com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest request) {
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getGetEnvironmentHistoryMethod(), getCallOptions(), request);
+    }
   }
 
   /**
@@ -261,9 +779,94 @@ protected EnvironmentsFutureStub build(
       return io.grpc.stub.ClientCalls.futureUnaryCall(
           getChannel().newCall(getListEnvironmentsMethod(), getCallOptions()), request);
     }
+
+    /**
+     *
+     *
+     * 
+     * Retrieves the specified agent environment.
+     * 

+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.v2beta1.Environment>
+        getEnvironment(com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest request) {
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
+          getChannel().newCall(getGetEnvironmentMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Creates an agent environment.
+     * 

+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.v2beta1.Environment>
+        createEnvironment(com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest request) {
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
+          getChannel().newCall(getCreateEnvironmentMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Updates the specified agent environment.
+     * This method allows you to deploy new agent versions into the environment.
+     * When an environment is pointed to a new agent version by setting
+     * `environment.agent_version`, the environment is temporarily set to the
+     * `LOADING` state. During that time, the environment keeps on serving the
+     * previous version of the agent. After the new agent version is done loading,
+     * the environment is set back to the `RUNNING` state.
+     * You can use "-" as Environment ID in environment name to update version
+     * in "draft" environment. WARNING: this will negate all recent changes to
+     * draft and can't be undone. You may want to save the draft to a version
+     * before calling this function.
+     * 

+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.v2beta1.Environment>
+        updateEnvironment(com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest request) {
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
+          getChannel().newCall(getUpdateEnvironmentMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Deletes the specified agent environment.
+     * 

+     */
+    public com.google.common.util.concurrent.ListenableFuture
+        deleteEnvironment(com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest request) {
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
+          getChannel().newCall(getDeleteEnvironmentMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Gets the history of the specified environment.
+     * 

+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.v2beta1.EnvironmentHistory>
+        getEnvironmentHistory(
+            com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest request) {
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
+          getChannel().newCall(getGetEnvironmentHistoryMethod(), getCallOptions()), request);
+    }
   }
 
   private static final int METHODID_LIST_ENVIRONMENTS = 0;
+  private static final int METHODID_GET_ENVIRONMENT = 1;
+  private static final int METHODID_CREATE_ENVIRONMENT = 2;
+  private static final int METHODID_UPDATE_ENVIRONMENT = 3;
+  private static final int METHODID_DELETE_ENVIRONMENT = 4;
+  private static final int METHODID_GET_ENVIRONMENT_HISTORY = 5;
 
   private static final class MethodHandlers
       implements io.grpc.stub.ServerCalls.UnaryMethod,
@@ -289,6 +892,35 @@ public void invoke(Req request, io.grpc.stub.StreamObserver responseObserv
                       com.google.cloud.dialogflow.v2beta1.ListEnvironmentsResponse>)
                   responseObserver);
           break;
+        case METHODID_GET_ENVIRONMENT:
+          serviceImpl.getEnvironment(
+              (com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest) request,
+              (io.grpc.stub.StreamObserver)
+                  responseObserver);
+          break;
+        case METHODID_CREATE_ENVIRONMENT:
+          serviceImpl.createEnvironment(
+              (com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest) request,
+              (io.grpc.stub.StreamObserver)
+                  responseObserver);
+          break;
+        case METHODID_UPDATE_ENVIRONMENT:
+          serviceImpl.updateEnvironment(
+              (com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest) request,
+              (io.grpc.stub.StreamObserver)
+                  responseObserver);
+          break;
+        case METHODID_DELETE_ENVIRONMENT:
+          serviceImpl.deleteEnvironment(
+              (com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest) request,
+              (io.grpc.stub.StreamObserver) responseObserver);
+          break;
+        case METHODID_GET_ENVIRONMENT_HISTORY:
+          serviceImpl.getEnvironmentHistory(
+              (com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest) request,
+              (io.grpc.stub.StreamObserver)
+                  responseObserver);
+          break;
         default:
           throw new AssertionError();
       }
@@ -354,6 +986,11 @@ public static io.grpc.ServiceDescriptor getServiceDescriptor() {
                   io.grpc.ServiceDescriptor.newBuilder(SERVICE_NAME)
                       .setSchemaDescriptor(new EnvironmentsFileDescriptorSupplier())
                       .addMethod(getListEnvironmentsMethod())
+                      .addMethod(getGetEnvironmentMethod())
+                      .addMethod(getCreateEnvironmentMethod())
+                      .addMethod(getUpdateEnvironmentMethod())
+                      .addMethod(getDeleteEnvironmentMethod())
+                      .addMethod(getGetEnvironmentHistoryMethod())
                       .build();
         }
       }
diff --git a/grpc-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/FulfillmentsGrpc.java b/grpc-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/FulfillmentsGrpc.java
new file mode 100644
index 000000000..ee85a4e92
--- /dev/null
+++ b/grpc-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/FulfillmentsGrpc.java
@@ -0,0 +1,481 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.v2beta1;
+
+import static io.grpc.MethodDescriptor.generateFullMethodName;
+
+/**
+ *
+ *
+ * 
+ * Service for managing [Fulfillments][google.cloud.dialogflow.v2beta1.Fulfillment].
+ * 

+ */
+@javax.annotation.Generated(
+    value = "by gRPC proto compiler",
+    comments = "Source: google/cloud/dialogflow/v2beta1/fulfillment.proto")
+public final class FulfillmentsGrpc {
+
+  private FulfillmentsGrpc() {}
+
+  public static final String SERVICE_NAME = "google.cloud.dialogflow.v2beta1.Fulfillments";
+
+  // Static method descriptors that strictly reflect the proto.
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest,
+          com.google.cloud.dialogflow.v2beta1.Fulfillment>
+      getGetFulfillmentMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "GetFulfillment",
+      requestType = com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest.class,
+      responseType = com.google.cloud.dialogflow.v2beta1.Fulfillment.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest,
+          com.google.cloud.dialogflow.v2beta1.Fulfillment>
+      getGetFulfillmentMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest,
+            com.google.cloud.dialogflow.v2beta1.Fulfillment>
+        getGetFulfillmentMethod;
+    if ((getGetFulfillmentMethod = FulfillmentsGrpc.getGetFulfillmentMethod) == null) {
+      synchronized (FulfillmentsGrpc.class) {
+        if ((getGetFulfillmentMethod = FulfillmentsGrpc.getGetFulfillmentMethod) == null) {
+          FulfillmentsGrpc.getGetFulfillmentMethod =
+              getGetFulfillmentMethod =
+                  io.grpc.MethodDescriptor
+                      .
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "GetFulfillment"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.v2beta1.Fulfillment.getDefaultInstance()))
+                      .setSchemaDescriptor(
+                          new FulfillmentsMethodDescriptorSupplier("GetFulfillment"))
+                      .build();
+        }
+      }
+    }
+    return getGetFulfillmentMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest,
+          com.google.cloud.dialogflow.v2beta1.Fulfillment>
+      getUpdateFulfillmentMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "UpdateFulfillment",
+      requestType = com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest.class,
+      responseType = com.google.cloud.dialogflow.v2beta1.Fulfillment.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest,
+          com.google.cloud.dialogflow.v2beta1.Fulfillment>
+      getUpdateFulfillmentMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest,
+            com.google.cloud.dialogflow.v2beta1.Fulfillment>
+        getUpdateFulfillmentMethod;
+    if ((getUpdateFulfillmentMethod = FulfillmentsGrpc.getUpdateFulfillmentMethod) == null) {
+      synchronized (FulfillmentsGrpc.class) {
+        if ((getUpdateFulfillmentMethod = FulfillmentsGrpc.getUpdateFulfillmentMethod) == null) {
+          FulfillmentsGrpc.getUpdateFulfillmentMethod =
+              getUpdateFulfillmentMethod =
+                  io.grpc.MethodDescriptor
+                      .
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "UpdateFulfillment"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.v2beta1.Fulfillment.getDefaultInstance()))
+                      .setSchemaDescriptor(
+                          new FulfillmentsMethodDescriptorSupplier("UpdateFulfillment"))
+                      .build();
+        }
+      }
+    }
+    return getUpdateFulfillmentMethod;
+  }
+
+  /** Creates a new async stub that supports all call types for the service */
+  public static FulfillmentsStub newStub(io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory factory =
+        new io.grpc.stub.AbstractStub.StubFactory() {
+          @java.lang.Override
+          public FulfillmentsStub newStub(
+              io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+            return new FulfillmentsStub(channel, callOptions);
+          }
+        };
+    return FulfillmentsStub.newStub(factory, channel);
+  }
+
+  /**
+   * Creates a new blocking-style stub that supports unary and streaming output calls on the service
+   */
+  public static FulfillmentsBlockingStub newBlockingStub(io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory factory =
+        new io.grpc.stub.AbstractStub.StubFactory() {
+          @java.lang.Override
+          public FulfillmentsBlockingStub newStub(
+              io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+            return new FulfillmentsBlockingStub(channel, callOptions);
+          }
+        };
+    return FulfillmentsBlockingStub.newStub(factory, channel);
+  }
+
+  /** Creates a new ListenableFuture-style stub that supports unary calls on the service */
+  public static FulfillmentsFutureStub newFutureStub(io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory factory =
+        new io.grpc.stub.AbstractStub.StubFactory() {
+          @java.lang.Override
+          public FulfillmentsFutureStub newStub(
+              io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+            return new FulfillmentsFutureStub(channel, callOptions);
+          }
+        };
+    return FulfillmentsFutureStub.newStub(factory, channel);
+  }
+
+  /**
+   *
+   *
+   * 
+   * Service for managing [Fulfillments][google.cloud.dialogflow.v2beta1.Fulfillment].
+   * 

+   */
+  public abstract static class FulfillmentsImplBase implements io.grpc.BindableService {
+
+    /**
+     *
+     *
+     * 
+     * Retrieves the fulfillment.
+     * 

+     */
+    public void getFulfillment(
+        com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest request,
+        io.grpc.stub.StreamObserver
+            responseObserver) {
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(
+          getGetFulfillmentMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Updates the fulfillment.
+     * 

+     */
+    public void updateFulfillment(
+        com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest request,
+        io.grpc.stub.StreamObserver
+            responseObserver) {
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(
+          getUpdateFulfillmentMethod(), responseObserver);
+    }
+
+    @java.lang.Override
+    public final io.grpc.ServerServiceDefinition bindService() {
+      return io.grpc.ServerServiceDefinition.builder(getServiceDescriptor())
+          .addMethod(
+              getGetFulfillmentMethod(),
+              io.grpc.stub.ServerCalls.asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest,
+                      com.google.cloud.dialogflow.v2beta1.Fulfillment>(
+                      this, METHODID_GET_FULFILLMENT)))
+          .addMethod(
+              getUpdateFulfillmentMethod(),
+              io.grpc.stub.ServerCalls.asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest,
+                      com.google.cloud.dialogflow.v2beta1.Fulfillment>(
+                      this, METHODID_UPDATE_FULFILLMENT)))
+          .build();
+    }
+  }
+
+  /**
+   *
+   *
+   * 
+   * Service for managing [Fulfillments][google.cloud.dialogflow.v2beta1.Fulfillment].
+   * 

+   */
+  public static final class FulfillmentsStub
+      extends io.grpc.stub.AbstractAsyncStub {
+    private FulfillmentsStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected FulfillmentsStub build(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new FulfillmentsStub(channel, callOptions);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Retrieves the fulfillment.
+     * 

+     */
+    public void getFulfillment(
+        com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest request,
+        io.grpc.stub.StreamObserver
+            responseObserver) {
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
+          getChannel().newCall(getGetFulfillmentMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Updates the fulfillment.
+     * 

+     */
+    public void updateFulfillment(
+        com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest request,
+        io.grpc.stub.StreamObserver
+            responseObserver) {
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
+          getChannel().newCall(getUpdateFulfillmentMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+  }
+
+  /**
+   *
+   *
+   * 
+   * Service for managing [Fulfillments][google.cloud.dialogflow.v2beta1.Fulfillment].
+   * 

+   */
+  public static final class FulfillmentsBlockingStub
+      extends io.grpc.stub.AbstractBlockingStub {
+    private FulfillmentsBlockingStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected FulfillmentsBlockingStub build(
+        io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new FulfillmentsBlockingStub(channel, callOptions);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Retrieves the fulfillment.
+     * 

+     */
+    public com.google.cloud.dialogflow.v2beta1.Fulfillment getFulfillment(
+        com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest request) {
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getGetFulfillmentMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Updates the fulfillment.
+     * 

+     */
+    public com.google.cloud.dialogflow.v2beta1.Fulfillment updateFulfillment(
+        com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest request) {
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getUpdateFulfillmentMethod(), getCallOptions(), request);
+    }
+  }
+
+  /**
+   *
+   *
+   * 
+   * Service for managing [Fulfillments][google.cloud.dialogflow.v2beta1.Fulfillment].
+   * 

+   */
+  public static final class FulfillmentsFutureStub
+      extends io.grpc.stub.AbstractFutureStub {
+    private FulfillmentsFutureStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected FulfillmentsFutureStub build(
+        io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new FulfillmentsFutureStub(channel, callOptions);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Retrieves the fulfillment.
+     * 

+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.v2beta1.Fulfillment>
+        getFulfillment(com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest request) {
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
+          getChannel().newCall(getGetFulfillmentMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Updates the fulfillment.
+     * 

+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.v2beta1.Fulfillment>
+        updateFulfillment(com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest request) {
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
+          getChannel().newCall(getUpdateFulfillmentMethod(), getCallOptions()), request);
+    }
+  }
+
+  private static final int METHODID_GET_FULFILLMENT = 0;
+  private static final int METHODID_UPDATE_FULFILLMENT = 1;
+
+  private static final class MethodHandlers
+      implements io.grpc.stub.ServerCalls.UnaryMethod,
+          io.grpc.stub.ServerCalls.ServerStreamingMethod,
+          io.grpc.stub.ServerCalls.ClientStreamingMethod,
+          io.grpc.stub.ServerCalls.BidiStreamingMethod {
+    private final FulfillmentsImplBase serviceImpl;
+    private final int methodId;
+
+    MethodHandlers(FulfillmentsImplBase serviceImpl, int methodId) {
+      this.serviceImpl = serviceImpl;
+      this.methodId = methodId;
+    }
+
+    @java.lang.Override
+    @java.lang.SuppressWarnings("unchecked")
+    public void invoke(Req request, io.grpc.stub.StreamObserver responseObserver) {
+      switch (methodId) {
+        case METHODID_GET_FULFILLMENT:
+          serviceImpl.getFulfillment(
+              (com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest) request,
+              (io.grpc.stub.StreamObserver)
+                  responseObserver);
+          break;
+        case METHODID_UPDATE_FULFILLMENT:
+          serviceImpl.updateFulfillment(
+              (com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest) request,
+              (io.grpc.stub.StreamObserver)
+                  responseObserver);
+          break;
+        default:
+          throw new AssertionError();
+      }
+    }
+
+    @java.lang.Override
+    @java.lang.SuppressWarnings("unchecked")
+    public io.grpc.stub.StreamObserver invoke(
+        io.grpc.stub.StreamObserver responseObserver) {
+      switch (methodId) {
+        default:
+          throw new AssertionError();
+      }
+    }
+  }
+
+  private abstract static class FulfillmentsBaseDescriptorSupplier
+      implements io.grpc.protobuf.ProtoFileDescriptorSupplier,
+          io.grpc.protobuf.ProtoServiceDescriptorSupplier {
+    FulfillmentsBaseDescriptorSupplier() {}
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.FileDescriptor getFileDescriptor() {
+      return com.google.cloud.dialogflow.v2beta1.FulfillmentProto.getDescriptor();
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.ServiceDescriptor getServiceDescriptor() {
+      return getFileDescriptor().findServiceByName("Fulfillments");
+    }
+  }
+
+  private static final class FulfillmentsFileDescriptorSupplier
+      extends FulfillmentsBaseDescriptorSupplier {
+    FulfillmentsFileDescriptorSupplier() {}
+  }
+
+  private static final class FulfillmentsMethodDescriptorSupplier
+      extends FulfillmentsBaseDescriptorSupplier
+      implements io.grpc.protobuf.ProtoMethodDescriptorSupplier {
+    private final String methodName;
+
+    FulfillmentsMethodDescriptorSupplier(String methodName) {
+      this.methodName = methodName;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.MethodDescriptor getMethodDescriptor() {
+      return getServiceDescriptor().findMethodByName(methodName);
+    }
+  }
+
+  private static volatile io.grpc.ServiceDescriptor serviceDescriptor;
+
+  public static io.grpc.ServiceDescriptor getServiceDescriptor() {
+    io.grpc.ServiceDescriptor result = serviceDescriptor;
+    if (result == null) {
+      synchronized (FulfillmentsGrpc.class) {
+        result = serviceDescriptor;
+        if (result == null) {
+          serviceDescriptor =
+              result =
+                  io.grpc.ServiceDescriptor.newBuilder(SERVICE_NAME)
+                      .setSchemaDescriptor(new FulfillmentsFileDescriptorSupplier())
+                      .addMethod(getGetFulfillmentMethod())
+                      .addMethod(getUpdateFulfillmentMethod())
+                      .build();
+        }
+      }
+    }
+    return result;
+  }
+}
diff --git a/grpc-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ParticipantsGrpc.java b/grpc-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ParticipantsGrpc.java
index b26019a60..8b12dfb1e 100644
--- a/grpc-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ParticipantsGrpc.java
+++ b/grpc-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ParticipantsGrpc.java
@@ -621,7 +621,7 @@ public void updateParticipant(
      * message from a participant into the conversation.
      * Note: Always use agent versions for production traffic
      * sent to virtual agents. See [Versions and
-     * environments(https://cloud.google.com/dialogflow/es/docs/agents-versions).
+     * environments](https://cloud.google.com/dialogflow/es/docs/agents-versions).
      * 
      */
     public void analyzeContent(
@@ -696,7 +696,7 @@ public void suggestSmartReplies(
      * This method should be used by human agent client software to fetch auto
      * generated suggestions in real-time, while the conversation with an end user
      * is in progress. The functionality is implemented in terms of the
-     * [list pagination](https://cloud.google.com/apis/design/design_patterns#list_pagination)
+     * [list pagination](/apis/design/design_patterns#list_pagination)
      * design pattern. The client app should use the `next_page_token` field
      * to fetch the next batch of suggestions. `suggestions` are sorted by
      * `create_time` in descending order.
@@ -907,7 +907,7 @@ public void updateParticipant(
      * message from a participant into the conversation.
      * Note: Always use agent versions for production traffic
      * sent to virtual agents. See [Versions and
-     * environments(https://cloud.google.com/dialogflow/es/docs/agents-versions).
+     * environments](https://cloud.google.com/dialogflow/es/docs/agents-versions).
      * 
      */
     public void analyzeContent(
@@ -990,7 +990,7 @@ public void suggestSmartReplies(
      * This method should be used by human agent client software to fetch auto
      * generated suggestions in real-time, while the conversation with an end user
      * is in progress. The functionality is implemented in terms of the
-     * [list pagination](https://cloud.google.com/apis/design/design_patterns#list_pagination)
+     * [list pagination](/apis/design/design_patterns#list_pagination)
      * design pattern. The client app should use the `next_page_token` field
      * to fetch the next batch of suggestions. `suggestions` are sorted by
      * `create_time` in descending order.
@@ -1114,7 +1114,7 @@ public com.google.cloud.dialogflow.v2beta1.Participant updateParticipant(
      * message from a participant into the conversation.
      * Note: Always use agent versions for production traffic
      * sent to virtual agents. See [Versions and
-     * environments(https://cloud.google.com/dialogflow/es/docs/agents-versions).
+     * environments](https://cloud.google.com/dialogflow/es/docs/agents-versions).
      * 
      */
     public com.google.cloud.dialogflow.v2beta1.AnalyzeContentResponse analyzeContent(
@@ -1181,7 +1181,7 @@ public com.google.cloud.dialogflow.v2beta1.SuggestSmartRepliesResponse suggestSm
      * This method should be used by human agent client software to fetch auto
      * generated suggestions in real-time, while the conversation with an end user
      * is in progress. The functionality is implemented in terms of the
-     * [list pagination](https://cloud.google.com/apis/design/design_patterns#list_pagination)
+     * [list pagination](/apis/design/design_patterns#list_pagination)
      * design pattern. The client app should use the `next_page_token` field
      * to fetch the next batch of suggestions. `suggestions` are sorted by
      * `create_time` in descending order.
@@ -1301,7 +1301,7 @@ protected ParticipantsFutureStub build(
      * message from a participant into the conversation.
      * Note: Always use agent versions for production traffic
      * sent to virtual agents. See [Versions and
-     * environments(https://cloud.google.com/dialogflow/es/docs/agents-versions).
+     * environments](https://cloud.google.com/dialogflow/es/docs/agents-versions).
      * 
      */
     public com.google.common.util.concurrent.ListenableFuture<
@@ -1373,7 +1373,7 @@ protected ParticipantsFutureStub build(
      * This method should be used by human agent client software to fetch auto
      * generated suggestions in real-time, while the conversation with an end user
      * is in progress. The functionality is implemented in terms of the
-     * [list pagination](https://cloud.google.com/apis/design/design_patterns#list_pagination)
+     * [list pagination](/apis/design/design_patterns#list_pagination)
      * design pattern. The client app should use the `next_page_token` field
      * to fetch the next batch of suggestions. `suggestions` are sorted by
      * `create_time` in descending order.
diff --git a/grpc-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/VersionsGrpc.java b/grpc-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/VersionsGrpc.java
new file mode 100644
index 000000000..92c551d8f
--- /dev/null
+++ b/grpc-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/VersionsGrpc.java
@@ -0,0 +1,828 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.dialogflow.v2beta1;
+
+import static io.grpc.MethodDescriptor.generateFullMethodName;
+
+/**
+ *
+ *
+ * 
+ * Service for managing [Versions][google.cloud.dialogflow.v2beta1.Version].
+ * 

+ */
+@javax.annotation.Generated(
+    value = "by gRPC proto compiler",
+    comments = "Source: google/cloud/dialogflow/v2beta1/version.proto")
+public final class VersionsGrpc {
+
+  private VersionsGrpc() {}
+
+  public static final String SERVICE_NAME = "google.cloud.dialogflow.v2beta1.Versions";
+
+  // Static method descriptors that strictly reflect the proto.
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.v2beta1.ListVersionsRequest,
+          com.google.cloud.dialogflow.v2beta1.ListVersionsResponse>
+      getListVersionsMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "ListVersions",
+      requestType = com.google.cloud.dialogflow.v2beta1.ListVersionsRequest.class,
+      responseType = com.google.cloud.dialogflow.v2beta1.ListVersionsResponse.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.v2beta1.ListVersionsRequest,
+          com.google.cloud.dialogflow.v2beta1.ListVersionsResponse>
+      getListVersionsMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.v2beta1.ListVersionsRequest,
+            com.google.cloud.dialogflow.v2beta1.ListVersionsResponse>
+        getListVersionsMethod;
+    if ((getListVersionsMethod = VersionsGrpc.getListVersionsMethod) == null) {
+      synchronized (VersionsGrpc.class) {
+        if ((getListVersionsMethod = VersionsGrpc.getListVersionsMethod) == null) {
+          VersionsGrpc.getListVersionsMethod =
+              getListVersionsMethod =
+                  io.grpc.MethodDescriptor
+                      .
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "ListVersions"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.v2beta1.ListVersionsRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.v2beta1.ListVersionsResponse
+                                  .getDefaultInstance()))
+                      .setSchemaDescriptor(new VersionsMethodDescriptorSupplier("ListVersions"))
+                      .build();
+        }
+      }
+    }
+    return getListVersionsMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.v2beta1.GetVersionRequest,
+          com.google.cloud.dialogflow.v2beta1.Version>
+      getGetVersionMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "GetVersion",
+      requestType = com.google.cloud.dialogflow.v2beta1.GetVersionRequest.class,
+      responseType = com.google.cloud.dialogflow.v2beta1.Version.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.v2beta1.GetVersionRequest,
+          com.google.cloud.dialogflow.v2beta1.Version>
+      getGetVersionMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.v2beta1.GetVersionRequest,
+            com.google.cloud.dialogflow.v2beta1.Version>
+        getGetVersionMethod;
+    if ((getGetVersionMethod = VersionsGrpc.getGetVersionMethod) == null) {
+      synchronized (VersionsGrpc.class) {
+        if ((getGetVersionMethod = VersionsGrpc.getGetVersionMethod) == null) {
+          VersionsGrpc.getGetVersionMethod =
+              getGetVersionMethod =
+                  io.grpc.MethodDescriptor
+                      .
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "GetVersion"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.v2beta1.GetVersionRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.v2beta1.Version.getDefaultInstance()))
+                      .setSchemaDescriptor(new VersionsMethodDescriptorSupplier("GetVersion"))
+                      .build();
+        }
+      }
+    }
+    return getGetVersionMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.v2beta1.CreateVersionRequest,
+          com.google.cloud.dialogflow.v2beta1.Version>
+      getCreateVersionMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "CreateVersion",
+      requestType = com.google.cloud.dialogflow.v2beta1.CreateVersionRequest.class,
+      responseType = com.google.cloud.dialogflow.v2beta1.Version.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.v2beta1.CreateVersionRequest,
+          com.google.cloud.dialogflow.v2beta1.Version>
+      getCreateVersionMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.v2beta1.CreateVersionRequest,
+            com.google.cloud.dialogflow.v2beta1.Version>
+        getCreateVersionMethod;
+    if ((getCreateVersionMethod = VersionsGrpc.getCreateVersionMethod) == null) {
+      synchronized (VersionsGrpc.class) {
+        if ((getCreateVersionMethod = VersionsGrpc.getCreateVersionMethod) == null) {
+          VersionsGrpc.getCreateVersionMethod =
+              getCreateVersionMethod =
+                  io.grpc.MethodDescriptor
+                      .
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "CreateVersion"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.v2beta1.CreateVersionRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.v2beta1.Version.getDefaultInstance()))
+                      .setSchemaDescriptor(new VersionsMethodDescriptorSupplier("CreateVersion"))
+                      .build();
+        }
+      }
+    }
+    return getCreateVersionMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest,
+          com.google.cloud.dialogflow.v2beta1.Version>
+      getUpdateVersionMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "UpdateVersion",
+      requestType = com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest.class,
+      responseType = com.google.cloud.dialogflow.v2beta1.Version.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest,
+          com.google.cloud.dialogflow.v2beta1.Version>
+      getUpdateVersionMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest,
+            com.google.cloud.dialogflow.v2beta1.Version>
+        getUpdateVersionMethod;
+    if ((getUpdateVersionMethod = VersionsGrpc.getUpdateVersionMethod) == null) {
+      synchronized (VersionsGrpc.class) {
+        if ((getUpdateVersionMethod = VersionsGrpc.getUpdateVersionMethod) == null) {
+          VersionsGrpc.getUpdateVersionMethod =
+              getUpdateVersionMethod =
+                  io.grpc.MethodDescriptor
+                      .
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "UpdateVersion"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.v2beta1.Version.getDefaultInstance()))
+                      .setSchemaDescriptor(new VersionsMethodDescriptorSupplier("UpdateVersion"))
+                      .build();
+        }
+      }
+    }
+    return getUpdateVersionMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest, com.google.protobuf.Empty>
+      getDeleteVersionMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "DeleteVersion",
+      requestType = com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest.class,
+      responseType = com.google.protobuf.Empty.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest, com.google.protobuf.Empty>
+      getDeleteVersionMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest, com.google.protobuf.Empty>
+        getDeleteVersionMethod;
+    if ((getDeleteVersionMethod = VersionsGrpc.getDeleteVersionMethod) == null) {
+      synchronized (VersionsGrpc.class) {
+        if ((getDeleteVersionMethod = VersionsGrpc.getDeleteVersionMethod) == null) {
+          VersionsGrpc.getDeleteVersionMethod =
+              getDeleteVersionMethod =
+                  io.grpc.MethodDescriptor
+                      .
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "DeleteVersion"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.protobuf.Empty.getDefaultInstance()))
+                      .setSchemaDescriptor(new VersionsMethodDescriptorSupplier("DeleteVersion"))
+                      .build();
+        }
+      }
+    }
+    return getDeleteVersionMethod;
+  }
+
+  /** Creates a new async stub that supports all call types for the service */
+  public static VersionsStub newStub(io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory factory =
+        new io.grpc.stub.AbstractStub.StubFactory() {
+          @java.lang.Override
+          public VersionsStub newStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+            return new VersionsStub(channel, callOptions);
+          }
+        };
+    return VersionsStub.newStub(factory, channel);
+  }
+
+  /**
+   * Creates a new blocking-style stub that supports unary and streaming output calls on the service
+   */
+  public static VersionsBlockingStub newBlockingStub(io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory factory =
+        new io.grpc.stub.AbstractStub.StubFactory() {
+          @java.lang.Override
+          public VersionsBlockingStub newStub(
+              io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+            return new VersionsBlockingStub(channel, callOptions);
+          }
+        };
+    return VersionsBlockingStub.newStub(factory, channel);
+  }
+
+  /** Creates a new ListenableFuture-style stub that supports unary calls on the service */
+  public static VersionsFutureStub newFutureStub(io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory factory =
+        new io.grpc.stub.AbstractStub.StubFactory() {
+          @java.lang.Override
+          public VersionsFutureStub newStub(
+              io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+            return new VersionsFutureStub(channel, callOptions);
+          }
+        };
+    return VersionsFutureStub.newStub(factory, channel);
+  }
+
+  /**
+   *
+   *
+   * 
+   * Service for managing [Versions][google.cloud.dialogflow.v2beta1.Version].
+   * 

+   */
+  public abstract static class VersionsImplBase implements io.grpc.BindableService {
+
+    /**
+     *
+     *
+     * 
+     * Returns the list of all versions of the specified agent.
+     * 

+     */
+    public void listVersions(
+        com.google.cloud.dialogflow.v2beta1.ListVersionsRequest request,
+        io.grpc.stub.StreamObserver
+            responseObserver) {
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(
+          getListVersionsMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Retrieves the specified agent version.
+     * 

+     */
+    public void getVersion(
+        com.google.cloud.dialogflow.v2beta1.GetVersionRequest request,
+        io.grpc.stub.StreamObserver responseObserver) {
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(getGetVersionMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Creates an agent version.
+     * The new version points to the agent instance in the "default" environment.
+     * 

+     */
+    public void createVersion(
+        com.google.cloud.dialogflow.v2beta1.CreateVersionRequest request,
+        io.grpc.stub.StreamObserver responseObserver) {
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(
+          getCreateVersionMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Updates the specified agent version.
+     * Note that this method does not allow you to update the state of the agent
+     * the given version points to. It allows you to update only mutable
+     * properties of the version resource.
+     * 

+     */
+    public void updateVersion(
+        com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest request,
+        io.grpc.stub.StreamObserver responseObserver) {
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(
+          getUpdateVersionMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Delete the specified agent version.
+     * 

+     */
+    public void deleteVersion(
+        com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest request,
+        io.grpc.stub.StreamObserver responseObserver) {
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(
+          getDeleteVersionMethod(), responseObserver);
+    }
+
+    @java.lang.Override
+    public final io.grpc.ServerServiceDefinition bindService() {
+      return io.grpc.ServerServiceDefinition.builder(getServiceDescriptor())
+          .addMethod(
+              getListVersionsMethod(),
+              io.grpc.stub.ServerCalls.asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.v2beta1.ListVersionsRequest,
+                      com.google.cloud.dialogflow.v2beta1.ListVersionsResponse>(
+                      this, METHODID_LIST_VERSIONS)))
+          .addMethod(
+              getGetVersionMethod(),
+              io.grpc.stub.ServerCalls.asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.v2beta1.GetVersionRequest,
+                      com.google.cloud.dialogflow.v2beta1.Version>(this, METHODID_GET_VERSION)))
+          .addMethod(
+              getCreateVersionMethod(),
+              io.grpc.stub.ServerCalls.asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.v2beta1.CreateVersionRequest,
+                      com.google.cloud.dialogflow.v2beta1.Version>(this, METHODID_CREATE_VERSION)))
+          .addMethod(
+              getUpdateVersionMethod(),
+              io.grpc.stub.ServerCalls.asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest,
+                      com.google.cloud.dialogflow.v2beta1.Version>(this, METHODID_UPDATE_VERSION)))
+          .addMethod(
+              getDeleteVersionMethod(),
+              io.grpc.stub.ServerCalls.asyncUnaryCall(
+                  new MethodHandlers<
+                      com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest,
+                      com.google.protobuf.Empty>(this, METHODID_DELETE_VERSION)))
+          .build();
+    }
+  }
+
+  /**
+   *
+   *
+   * 
+   * Service for managing [Versions][google.cloud.dialogflow.v2beta1.Version].
+   * 

+   */
+  public static final class VersionsStub extends io.grpc.stub.AbstractAsyncStub {
+    private VersionsStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected VersionsStub build(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new VersionsStub(channel, callOptions);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Returns the list of all versions of the specified agent.
+     * 

+     */
+    public void listVersions(
+        com.google.cloud.dialogflow.v2beta1.ListVersionsRequest request,
+        io.grpc.stub.StreamObserver
+            responseObserver) {
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
+          getChannel().newCall(getListVersionsMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Retrieves the specified agent version.
+     * 

+     */
+    public void getVersion(
+        com.google.cloud.dialogflow.v2beta1.GetVersionRequest request,
+        io.grpc.stub.StreamObserver responseObserver) {
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
+          getChannel().newCall(getGetVersionMethod(), getCallOptions()), request, responseObserver);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Creates an agent version.
+     * The new version points to the agent instance in the "default" environment.
+     * 

+     */
+    public void createVersion(
+        com.google.cloud.dialogflow.v2beta1.CreateVersionRequest request,
+        io.grpc.stub.StreamObserver responseObserver) {
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
+          getChannel().newCall(getCreateVersionMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Updates the specified agent version.
+     * Note that this method does not allow you to update the state of the agent
+     * the given version points to. It allows you to update only mutable
+     * properties of the version resource.
+     * 

+     */
+    public void updateVersion(
+        com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest request,
+        io.grpc.stub.StreamObserver responseObserver) {
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
+          getChannel().newCall(getUpdateVersionMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Delete the specified agent version.
+     * 

+     */
+    public void deleteVersion(
+        com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest request,
+        io.grpc.stub.StreamObserver responseObserver) {
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
+          getChannel().newCall(getDeleteVersionMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+  }
+
+  /**
+   *
+   *
+   * 
+   * Service for managing [Versions][google.cloud.dialogflow.v2beta1.Version].
+   * 

+   */
+  public static final class VersionsBlockingStub
+      extends io.grpc.stub.AbstractBlockingStub {
+    private VersionsBlockingStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected VersionsBlockingStub build(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new VersionsBlockingStub(channel, callOptions);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Returns the list of all versions of the specified agent.
+     * 

+     */
+    public com.google.cloud.dialogflow.v2beta1.ListVersionsResponse listVersions(
+        com.google.cloud.dialogflow.v2beta1.ListVersionsRequest request) {
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getListVersionsMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Retrieves the specified agent version.
+     * 

+     */
+    public com.google.cloud.dialogflow.v2beta1.Version getVersion(
+        com.google.cloud.dialogflow.v2beta1.GetVersionRequest request) {
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getGetVersionMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Creates an agent version.
+     * The new version points to the agent instance in the "default" environment.
+     * 

+     */
+    public com.google.cloud.dialogflow.v2beta1.Version createVersion(
+        com.google.cloud.dialogflow.v2beta1.CreateVersionRequest request) {
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getCreateVersionMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Updates the specified agent version.
+     * Note that this method does not allow you to update the state of the agent
+     * the given version points to. It allows you to update only mutable
+     * properties of the version resource.
+     * 

+     */
+    public com.google.cloud.dialogflow.v2beta1.Version updateVersion(
+        com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest request) {
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getUpdateVersionMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Delete the specified agent version.
+     * 

+     */
+    public com.google.protobuf.Empty deleteVersion(
+        com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest request) {
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getDeleteVersionMethod(), getCallOptions(), request);
+    }
+  }
+
+  /**
+   *
+   *
+   * 
+   * Service for managing [Versions][google.cloud.dialogflow.v2beta1.Version].
+   * 

+   */
+  public static final class VersionsFutureStub
+      extends io.grpc.stub.AbstractFutureStub {
+    private VersionsFutureStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected VersionsFutureStub build(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new VersionsFutureStub(channel, callOptions);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Returns the list of all versions of the specified agent.
+     * 

+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.v2beta1.ListVersionsResponse>
+        listVersions(com.google.cloud.dialogflow.v2beta1.ListVersionsRequest request) {
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
+          getChannel().newCall(getListVersionsMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Retrieves the specified agent version.
+     * 

+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.v2beta1.Version>
+        getVersion(com.google.cloud.dialogflow.v2beta1.GetVersionRequest request) {
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
+          getChannel().newCall(getGetVersionMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Creates an agent version.
+     * The new version points to the agent instance in the "default" environment.
+     * 

+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.v2beta1.Version>
+        createVersion(com.google.cloud.dialogflow.v2beta1.CreateVersionRequest request) {
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
+          getChannel().newCall(getCreateVersionMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Updates the specified agent version.
+     * Note that this method does not allow you to update the state of the agent
+     * the given version points to. It allows you to update only mutable
+     * properties of the version resource.
+     * 

+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.dialogflow.v2beta1.Version>
+        updateVersion(com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest request) {
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
+          getChannel().newCall(getUpdateVersionMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Delete the specified agent version.
+     * 

+     */
+    public com.google.common.util.concurrent.ListenableFuture
+        deleteVersion(com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest request) {
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
+          getChannel().newCall(getDeleteVersionMethod(), getCallOptions()), request);
+    }
+  }
+
+  private static final int METHODID_LIST_VERSIONS = 0;
+  private static final int METHODID_GET_VERSION = 1;
+  private static final int METHODID_CREATE_VERSION = 2;
+  private static final int METHODID_UPDATE_VERSION = 3;
+  private static final int METHODID_DELETE_VERSION = 4;
+
+  private static final class MethodHandlers
+      implements io.grpc.stub.ServerCalls.UnaryMethod,
+          io.grpc.stub.ServerCalls.ServerStreamingMethod,
+          io.grpc.stub.ServerCalls.ClientStreamingMethod,
+          io.grpc.stub.ServerCalls.BidiStreamingMethod {
+    private final VersionsImplBase serviceImpl;
+    private final int methodId;
+
+    MethodHandlers(VersionsImplBase serviceImpl, int methodId) {
+      this.serviceImpl = serviceImpl;
+      this.methodId = methodId;
+    }
+
+    @java.lang.Override
+    @java.lang.SuppressWarnings("unchecked")
+    public void invoke(Req request, io.grpc.stub.StreamObserver responseObserver) {
+      switch (methodId) {
+        case METHODID_LIST_VERSIONS:
+          serviceImpl.listVersions(
+              (com.google.cloud.dialogflow.v2beta1.ListVersionsRequest) request,
+              (io.grpc.stub.StreamObserver<
+                      com.google.cloud.dialogflow.v2beta1.ListVersionsResponse>)
+                  responseObserver);
+          break;
+        case METHODID_GET_VERSION:
+          serviceImpl.getVersion(
+              (com.google.cloud.dialogflow.v2beta1.GetVersionRequest) request,
+              (io.grpc.stub.StreamObserver)
+                  responseObserver);
+          break;
+        case METHODID_CREATE_VERSION:
+          serviceImpl.createVersion(
+              (com.google.cloud.dialogflow.v2beta1.CreateVersionRequest) request,
+              (io.grpc.stub.StreamObserver)
+                  responseObserver);
+          break;
+        case METHODID_UPDATE_VERSION:
+          serviceImpl.updateVersion(
+              (com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest) request,
+              (io.grpc.stub.StreamObserver)
+                  responseObserver);
+          break;
+        case METHODID_DELETE_VERSION:
+          serviceImpl.deleteVersion(
+              (com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest) request,
+              (io.grpc.stub.StreamObserver) responseObserver);
+          break;
+        default:
+          throw new AssertionError();
+      }
+    }
+
+    @java.lang.Override
+    @java.lang.SuppressWarnings("unchecked")
+    public io.grpc.stub.StreamObserver invoke(
+        io.grpc.stub.StreamObserver responseObserver) {
+      switch (methodId) {
+        default:
+          throw new AssertionError();
+      }
+    }
+  }
+
+  private abstract static class VersionsBaseDescriptorSupplier
+      implements io.grpc.protobuf.ProtoFileDescriptorSupplier,
+          io.grpc.protobuf.ProtoServiceDescriptorSupplier {
+    VersionsBaseDescriptorSupplier() {}
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.FileDescriptor getFileDescriptor() {
+      return com.google.cloud.dialogflow.v2beta1.VersionProto.getDescriptor();
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.ServiceDescriptor getServiceDescriptor() {
+      return getFileDescriptor().findServiceByName("Versions");
+    }
+  }
+
+  private static final class VersionsFileDescriptorSupplier extends VersionsBaseDescriptorSupplier {
+    VersionsFileDescriptorSupplier() {}
+  }
+
+  private static final class VersionsMethodDescriptorSupplier extends VersionsBaseDescriptorSupplier
+      implements io.grpc.protobuf.ProtoMethodDescriptorSupplier {
+    private final String methodName;
+
+    VersionsMethodDescriptorSupplier(String methodName) {
+      this.methodName = methodName;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.MethodDescriptor getMethodDescriptor() {
+      return getServiceDescriptor().findMethodByName(methodName);
+    }
+  }
+
+  private static volatile io.grpc.ServiceDescriptor serviceDescriptor;
+
+  public static io.grpc.ServiceDescriptor getServiceDescriptor() {
+    io.grpc.ServiceDescriptor result = serviceDescriptor;
+    if (result == null) {
+      synchronized (VersionsGrpc.class) {
+        result = serviceDescriptor;
+        if (result == null) {
+          serviceDescriptor =
+              result =
+                  io.grpc.ServiceDescriptor.newBuilder(SERVICE_NAME)
+                      .setSchemaDescriptor(new VersionsFileDescriptorSupplier())
+                      .addMethod(getListVersionsMethod())
+                      .addMethod(getGetVersionMethod())
+                      .addMethod(getCreateVersionMethod())
+                      .addMethod(getUpdateVersionMethod())
+                      .addMethod(getDeleteVersionMethod())
+                      .build();
+        }
+      }
+    }
+    return result;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/EnvironmentProto.java b/proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/EnvironmentProto.java
index 3334777c0..1e37099f1 100644
--- a/proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/EnvironmentProto.java
+++ b/proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/EnvironmentProto.java
@@ -132,70 +132,69 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "logflow.googleapis.com/Environment\022A\n\013en"
           + "vironment\030\002 \001(\0132\'.google.cloud.dialogflo"
           + "w.v2.EnvironmentB\003\340A\002\022\033\n\016environment_id\030"
-          + "\003 \001(\tB\003\340A\002\"\363\001\n\030UpdateEnvironmentRequest\022"
-          + "k\n\013environment\030\001 \001(\0132\'.google.cloud.dial"
-          + "ogflow.v2.EnvironmentB-\340A\002\372A\'\n%dialogflo"
-          + "w.googleapis.com/Environment\0224\n\013update_m"
-          + "ask\030\002 \001(\0132\032.google.protobuf.FieldMaskB\003\340"
-          + "A\002\0224\n\'allow_load_to_draft_and_discard_ch"
-          + "anges\030\003 \001(\010B\003\340A\001\"W\n\030DeleteEnvironmentReq"
-          + "uest\022;\n\004name\030\001 \001(\tB-\340A\002\372A\'\n%dialogflow.g"
-          + "oogleapis.com/Environment\"\216\001\n\034GetEnviron"
-          + "mentHistoryRequest\022=\n\006parent\030\001 \001(\tB-\340A\002\372"
-          + "A\'\n%dialogflow.googleapis.com/Environmen"
-          + "t\022\026\n\tpage_size\030\002 \001(\005B\003\340A\001\022\027\n\npage_token\030"
-          + "\003 \001(\tB\003\340A\001\"\371\001\n\022EnvironmentHistory\022\023\n\006par"
-          + "ent\030\001 \001(\tB\003\340A\003\022J\n\007entries\030\002 \003(\01324.google"
-          + ".cloud.dialogflow.v2.EnvironmentHistory."
-          + "EntryB\003\340A\003\022\034\n\017next_page_token\030\003 \001(\tB\003\340A\003"
-          + "\032d\n\005Entry\022\025\n\ragent_version\030\001 \001(\t\022\023\n\013desc"
-          + "ription\030\002 \001(\t\022/\n\013create_time\030\003 \001(\0132\032.goo"
-          + "gle.protobuf.Timestamp2\313\014\n\014Environments\022"
-          + "\364\001\n\020ListEnvironments\0223.google.cloud.dial"
-          + "ogflow.v2.ListEnvironmentsRequest\0324.goog"
-          + "le.cloud.dialogflow.v2.ListEnvironmentsR"
-          + "esponse\"u\202\323\344\223\002f\022*/v2/{parent=projects/*/"
-          + "agent}/environmentsZ8\0226/v2/{parent=proje"
-          + "cts/*/locations/*/agent}/environments\332A\006"
-          + "parent\022\332\001\n\016GetEnvironment\0221.google.cloud"
-          + ".dialogflow.v2.GetEnvironmentRequest\032\'.g"
-          + "oogle.cloud.dialogflow.v2.Environment\"l\202"
-          + "\323\344\223\002f\022*/v2/{name=projects/*/agent/enviro"
-          + "nments/*}Z8\0226/v2/{name=projects/*/locati"
-          + "ons/*/agent/environments/*}\022\374\001\n\021CreateEn"
-          + "vironment\0224.google.cloud.dialogflow.v2.C"
-          + "reateEnvironmentRequest\032\'.google.cloud.d"
-          + "ialogflow.v2.Environment\"\207\001\202\323\344\223\002\200\001\"*/v2/"
-          + "{parent=projects/*/agent}/environments:\013"
-          + "environmentZE\"6/v2/{parent=projects/*/lo"
-          + "cations/*/agent}/environments:\013environme"
-          + "nt\022\224\002\n\021UpdateEnvironment\0224.google.cloud."
-          + "dialogflow.v2.UpdateEnvironmentRequest\032\'"
-          + ".google.cloud.dialogflow.v2.Environment\""
-          + "\237\001\202\323\344\223\002\230\00126/v2/{environment.name=project"
-          + "s/*/agent/environments/*}:\013environmentZQ"
-          + "2B/v2/{environment.name=projects/*/locat"
-          + "ions/*/agent/environments/*}:\013environmen"
-          + "t\022\317\001\n\021DeleteEnvironment\0224.google.cloud.d"
-          + "ialogflow.v2.DeleteEnvironmentRequest\032\026."
-          + "google.protobuf.Empty\"l\202\323\344\223\002f**/v2/{name"
-          + "=projects/*/agent/environments/*}Z8*6/v2"
-          + "/{name=projects/*/locations/*/agent/envi"
-          + "ronments/*}\022\204\002\n\025GetEnvironmentHistory\0228."
-          + "google.cloud.dialogflow.v2.GetEnvironmen"
-          + "tHistoryRequest\032..google.cloud.dialogflo"
-          + "w.v2.EnvironmentHistory\"\200\001\202\323\344\223\002z\0224/v2/{p"
-          + "arent=projects/*/agent/environments/*}/h"
-          + "istoryZB\022@/v2/{parent=projects/*/locatio"
-          + "ns/*/agent/environments/*}/history\032x\312A\031d"
-          + "ialogflow.googleapis.com\322AYhttps://www.g"
-          + "oogleapis.com/auth/cloud-platform,https:"
-          + "//www.googleapis.com/auth/dialogflowB\237\001\n"
-          + "\036com.google.cloud.dialogflow.v2B\020Environ"
-          + "mentProtoP\001ZDgoogle.golang.org/genproto/"
-          + "googleapis/cloud/dialogflow/v2;dialogflo"
-          + "w\370\001\001\242\002\002DF\252\002\032Google.Cloud.Dialogflow.V2b\006"
-          + "proto3"
+          + "\003 \001(\tB\003\340A\002\"\311\001\n\030UpdateEnvironmentRequest\022"
+          + "A\n\013environment\030\001 \001(\0132\'.google.cloud.dial"
+          + "ogflow.v2.EnvironmentB\003\340A\002\0224\n\013update_mas"
+          + "k\030\002 \001(\0132\032.google.protobuf.FieldMaskB\003\340A\002"
+          + "\0224\n\'allow_load_to_draft_and_discard_chan"
+          + "ges\030\003 \001(\010B\003\340A\001\"W\n\030DeleteEnvironmentReque"
+          + "st\022;\n\004name\030\001 \001(\tB-\340A\002\372A\'\n%dialogflow.goo"
+          + "gleapis.com/Environment\"\216\001\n\034GetEnvironme"
+          + "ntHistoryRequest\022=\n\006parent\030\001 \001(\tB-\340A\002\372A\'"
+          + "\n%dialogflow.googleapis.com/Environment\022"
+          + "\026\n\tpage_size\030\002 \001(\005B\003\340A\001\022\027\n\npage_token\030\003 "
+          + "\001(\tB\003\340A\001\"\371\001\n\022EnvironmentHistory\022\023\n\006paren"
+          + "t\030\001 \001(\tB\003\340A\003\022J\n\007entries\030\002 \003(\01324.google.c"
+          + "loud.dialogflow.v2.EnvironmentHistory.En"
+          + "tryB\003\340A\003\022\034\n\017next_page_token\030\003 \001(\tB\003\340A\003\032d"
+          + "\n\005Entry\022\025\n\ragent_version\030\001 \001(\t\022\023\n\013descri"
+          + "ption\030\002 \001(\t\022/\n\013create_time\030\003 \001(\0132\032.googl"
+          + "e.protobuf.Timestamp2\313\014\n\014Environments\022\364\001"
+          + "\n\020ListEnvironments\0223.google.cloud.dialog"
+          + "flow.v2.ListEnvironmentsRequest\0324.google"
+          + ".cloud.dialogflow.v2.ListEnvironmentsRes"
+          + "ponse\"u\202\323\344\223\002f\022*/v2/{parent=projects/*/ag"
+          + "ent}/environmentsZ8\0226/v2/{parent=project"
+          + "s/*/locations/*/agent}/environments\332A\006pa"
+          + "rent\022\332\001\n\016GetEnvironment\0221.google.cloud.d"
+          + "ialogflow.v2.GetEnvironmentRequest\032\'.goo"
+          + "gle.cloud.dialogflow.v2.Environment\"l\202\323\344"
+          + "\223\002f\022*/v2/{name=projects/*/agent/environm"
+          + "ents/*}Z8\0226/v2/{name=projects/*/location"
+          + "s/*/agent/environments/*}\022\374\001\n\021CreateEnvi"
+          + "ronment\0224.google.cloud.dialogflow.v2.Cre"
+          + "ateEnvironmentRequest\032\'.google.cloud.dia"
+          + "logflow.v2.Environment\"\207\001\202\323\344\223\002\200\001\"*/v2/{p"
+          + "arent=projects/*/agent}/environments:\013en"
+          + "vironmentZE\"6/v2/{parent=projects/*/loca"
+          + "tions/*/agent}/environments:\013environment"
+          + "\022\224\002\n\021UpdateEnvironment\0224.google.cloud.di"
+          + "alogflow.v2.UpdateEnvironmentRequest\032\'.g"
+          + "oogle.cloud.dialogflow.v2.Environment\"\237\001"
+          + "\202\323\344\223\002\230\00126/v2/{environment.name=projects/"
+          + "*/agent/environments/*}:\013environmentZQ2B"
+          + "/v2/{environment.name=projects/*/locatio"
+          + "ns/*/agent/environments/*}:\013environment\022"
+          + "\317\001\n\021DeleteEnvironment\0224.google.cloud.dia"
+          + "logflow.v2.DeleteEnvironmentRequest\032\026.go"
+          + "ogle.protobuf.Empty\"l\202\323\344\223\002f**/v2/{name=p"
+          + "rojects/*/agent/environments/*}Z8*6/v2/{"
+          + "name=projects/*/locations/*/agent/enviro"
+          + "nments/*}\022\204\002\n\025GetEnvironmentHistory\0228.go"
+          + "ogle.cloud.dialogflow.v2.GetEnvironmentH"
+          + "istoryRequest\032..google.cloud.dialogflow."
+          + "v2.EnvironmentHistory\"\200\001\202\323\344\223\002z\0224/v2/{par"
+          + "ent=projects/*/agent/environments/*}/his"
+          + "toryZB\022@/v2/{parent=projects/*/locations"
+          + "/*/agent/environments/*}/history\032x\312A\031dia"
+          + "logflow.googleapis.com\322AYhttps://www.goo"
+          + "gleapis.com/auth/cloud-platform,https://"
+          + "www.googleapis.com/auth/dialogflowB\237\001\n\036c"
+          + "om.google.cloud.dialogflow.v2B\020Environme"
+          + "ntProtoP\001ZDgoogle.golang.org/genproto/go"
+          + "ogleapis/cloud/dialogflow/v2;dialogflow\370"
+          + "\001\001\242\002\002DF\252\002\032Google.Cloud.Dialogflow.V2b\006pr"
+          + "oto3"
     };
     descriptor =
         com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
diff --git a/proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/UpdateEnvironmentRequest.java b/proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/UpdateEnvironmentRequest.java
index e95467e27..944625415 100644
--- a/proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/UpdateEnvironmentRequest.java
+++ b/proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/UpdateEnvironmentRequest.java
@@ -148,7 +148,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * 
    *
    * 
-   * .google.cloud.dialogflow.v2.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * .google.cloud.dialogflow.v2.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED];
    * 
    *
    * @return Whether the environment field is set.
@@ -165,7 +165,7 @@ public boolean hasEnvironment() {
    * 
    *
    * 
-   * .google.cloud.dialogflow.v2.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * .google.cloud.dialogflow.v2.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED];
    * 
    *
    * @return The environment.
@@ -184,7 +184,7 @@ public com.google.cloud.dialogflow.v2.Environment getEnvironment() {
    * 
    *
    * 
-   * .google.cloud.dialogflow.v2.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * .google.cloud.dialogflow.v2.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED];
    * 
    */
   @java.lang.Override
@@ -657,7 +657,7 @@ public Builder mergeFrom(
      * 
      *
      * 
-     * .google.cloud.dialogflow.v2.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * .google.cloud.dialogflow.v2.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED];
      * 
      *
      * @return Whether the environment field is set.
@@ -673,7 +673,7 @@ public boolean hasEnvironment() {
      * 
      *
      * 
-     * .google.cloud.dialogflow.v2.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * .google.cloud.dialogflow.v2.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED];
      * 
      *
      * @return The environment.
@@ -695,7 +695,7 @@ public com.google.cloud.dialogflow.v2.Environment getEnvironment() {
      * 
      *
      * 
-     * .google.cloud.dialogflow.v2.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * .google.cloud.dialogflow.v2.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED];
      * 
      */
     public Builder setEnvironment(com.google.cloud.dialogflow.v2.Environment value) {
@@ -719,7 +719,7 @@ public Builder setEnvironment(com.google.cloud.dialogflow.v2.Environment value)
      * 
      *
      * 
-     * .google.cloud.dialogflow.v2.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * .google.cloud.dialogflow.v2.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED];
      * 
      */
     public Builder setEnvironment(
@@ -741,7 +741,7 @@ public Builder setEnvironment(
      * 
      *
      * 
-     * .google.cloud.dialogflow.v2.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * .google.cloud.dialogflow.v2.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED];
      * 
      */
     public Builder mergeEnvironment(com.google.cloud.dialogflow.v2.Environment value) {
@@ -769,7 +769,7 @@ public Builder mergeEnvironment(com.google.cloud.dialogflow.v2.Environment value
      * 
      *
      * 
-     * .google.cloud.dialogflow.v2.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * .google.cloud.dialogflow.v2.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED];
      * 
      */
     public Builder clearEnvironment() {
@@ -791,7 +791,7 @@ public Builder clearEnvironment() {
      * 
      *
      * 
-     * .google.cloud.dialogflow.v2.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * .google.cloud.dialogflow.v2.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED];
      * 
      */
     public com.google.cloud.dialogflow.v2.Environment.Builder getEnvironmentBuilder() {
@@ -807,7 +807,7 @@ public com.google.cloud.dialogflow.v2.Environment.Builder getEnvironmentBuilder(
      * 
      *
      * 
-     * .google.cloud.dialogflow.v2.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * .google.cloud.dialogflow.v2.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED];
      * 
      */
     public com.google.cloud.dialogflow.v2.EnvironmentOrBuilder getEnvironmentOrBuilder() {
@@ -827,7 +827,7 @@ public com.google.cloud.dialogflow.v2.EnvironmentOrBuilder getEnvironmentOrBuild
      * 
      *
      * 
-     * .google.cloud.dialogflow.v2.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * .google.cloud.dialogflow.v2.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED];
      * 
      */
     private com.google.protobuf.SingleFieldBuilderV3<
diff --git a/proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/UpdateEnvironmentRequestOrBuilder.java b/proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/UpdateEnvironmentRequestOrBuilder.java
index 7b6ef358f..42d565b68 100644
--- a/proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/UpdateEnvironmentRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/UpdateEnvironmentRequestOrBuilder.java
@@ -31,7 +31,7 @@ public interface UpdateEnvironmentRequestOrBuilder
    * 
    *
    * 
-   * .google.cloud.dialogflow.v2.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * .google.cloud.dialogflow.v2.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED];
    * 
    *
    * @return Whether the environment field is set.
@@ -45,7 +45,7 @@ public interface UpdateEnvironmentRequestOrBuilder
    * 
    *
    * 
-   * .google.cloud.dialogflow.v2.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * .google.cloud.dialogflow.v2.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED];
    * 
    *
    * @return The environment.
@@ -59,7 +59,7 @@ public interface UpdateEnvironmentRequestOrBuilder
    * 
    *
    * 
-   * .google.cloud.dialogflow.v2.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * .google.cloud.dialogflow.v2.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED];
    * 
    */
   com.google.cloud.dialogflow.v2.EnvironmentOrBuilder getEnvironmentOrBuilder();
diff --git a/proto-google-cloud-dialogflow-v2/src/main/proto/google/cloud/dialogflow/v2/environment.proto b/proto-google-cloud-dialogflow-v2/src/main/proto/google/cloud/dialogflow/v2/environment.proto
index 39bb41b2e..322dd2b28 100644
--- a/proto-google-cloud-dialogflow-v2/src/main/proto/google/cloud/dialogflow/v2/environment.proto
+++ b/proto-google-cloud-dialogflow-v2/src/main/proto/google/cloud/dialogflow/v2/environment.proto
@@ -287,12 +287,7 @@ message CreateEnvironmentRequest {
 // The request message for [Environments.UpdateEnvironment][google.cloud.dialogflow.v2.Environments.UpdateEnvironment].
 message UpdateEnvironmentRequest {
   // Required. The environment to update.
-  Environment environment = 1 [
-    (google.api.field_behavior) = REQUIRED,
-    (google.api.resource_reference) = {
-      type: "dialogflow.googleapis.com/Environment"
-    }
-  ];
+  Environment environment = 1 [(google.api.field_behavior) = REQUIRED];
 
   // Required. The mask to control which fields get updated.
   google.protobuf.FieldMask update_mask = 2 [(google.api.field_behavior) = REQUIRED];
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AgentAssistantFeedback.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AgentAssistantFeedback.java
index a37141f09..833361f0e 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AgentAssistantFeedback.java
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AgentAssistantFeedback.java
@@ -2062,9 +2062,7 @@ public int getDocumentCorrectnessValue() {
    * 
    * Optional. Whether or not the suggested document is efficient. For example,
    * if the document is poorly written, hard to understand, hard to use or
-   * too long to find useful information,
-   * [document_efficiency][google.cloud.dialogflow.v2beta1.AgentAssistantFeedback.document_efficiency]
-   * is
+   * too long to find useful information, [document_efficiency][google.cloud.dialogflow.v2beta1.AgentAssistantFeedback.document_efficiency] is
    * [DocumentEfficiency.INEFFICIENT][google.cloud.dialogflow.v2beta1.AgentAssistantFeedback.DocumentEfficiency.INEFFICIENT].
    * 

    *
@@ -2084,9 +2082,7 @@ public int getDocumentEfficiencyValue() {
    * 
    * Optional. Whether or not the suggested document is efficient. For example,
    * if the document is poorly written, hard to understand, hard to use or
-   * too long to find useful information,
-   * [document_efficiency][google.cloud.dialogflow.v2beta1.AgentAssistantFeedback.document_efficiency]
-   * is
+   * too long to find useful information, [document_efficiency][google.cloud.dialogflow.v2beta1.AgentAssistantFeedback.document_efficiency] is
    * [DocumentEfficiency.INEFFICIENT][google.cloud.dialogflow.v2beta1.AgentAssistantFeedback.DocumentEfficiency.INEFFICIENT].
    * 

    *
@@ -2836,9 +2832,7 @@ public Builder clearDocumentCorrectness() {
      * 
      * Optional. Whether or not the suggested document is efficient. For example,
      * if the document is poorly written, hard to understand, hard to use or
-     * too long to find useful information,
-     * [document_efficiency][google.cloud.dialogflow.v2beta1.AgentAssistantFeedback.document_efficiency]
-     * is
+     * too long to find useful information, [document_efficiency][google.cloud.dialogflow.v2beta1.AgentAssistantFeedback.document_efficiency] is
      * [DocumentEfficiency.INEFFICIENT][google.cloud.dialogflow.v2beta1.AgentAssistantFeedback.DocumentEfficiency.INEFFICIENT].
      * 

      *
@@ -2858,9 +2852,7 @@ public int getDocumentEfficiencyValue() {
      * 
      * Optional. Whether or not the suggested document is efficient. For example,
      * if the document is poorly written, hard to understand, hard to use or
-     * too long to find useful information,
-     * [document_efficiency][google.cloud.dialogflow.v2beta1.AgentAssistantFeedback.document_efficiency]
-     * is
+     * too long to find useful information, [document_efficiency][google.cloud.dialogflow.v2beta1.AgentAssistantFeedback.document_efficiency] is
      * [DocumentEfficiency.INEFFICIENT][google.cloud.dialogflow.v2beta1.AgentAssistantFeedback.DocumentEfficiency.INEFFICIENT].
      * 

      *
@@ -2883,9 +2875,7 @@ public Builder setDocumentEfficiencyValue(int value) {
      * 
      * Optional. Whether or not the suggested document is efficient. For example,
      * if the document is poorly written, hard to understand, hard to use or
-     * too long to find useful information,
-     * [document_efficiency][google.cloud.dialogflow.v2beta1.AgentAssistantFeedback.document_efficiency]
-     * is
+     * too long to find useful information, [document_efficiency][google.cloud.dialogflow.v2beta1.AgentAssistantFeedback.document_efficiency] is
      * [DocumentEfficiency.INEFFICIENT][google.cloud.dialogflow.v2beta1.AgentAssistantFeedback.DocumentEfficiency.INEFFICIENT].
      * 

      *
@@ -2913,9 +2903,7 @@ public Builder setDocumentEfficiencyValue(int value) {
      * 
      * Optional. Whether or not the suggested document is efficient. For example,
      * if the document is poorly written, hard to understand, hard to use or
-     * too long to find useful information,
-     * [document_efficiency][google.cloud.dialogflow.v2beta1.AgentAssistantFeedback.document_efficiency]
-     * is
+     * too long to find useful information, [document_efficiency][google.cloud.dialogflow.v2beta1.AgentAssistantFeedback.document_efficiency] is
      * [DocumentEfficiency.INEFFICIENT][google.cloud.dialogflow.v2beta1.AgentAssistantFeedback.DocumentEfficiency.INEFFICIENT].
      * 

      *
@@ -2942,9 +2930,7 @@ public Builder setDocumentEfficiency(
      * 
      * Optional. Whether or not the suggested document is efficient. For example,
      * if the document is poorly written, hard to understand, hard to use or
-     * too long to find useful information,
-     * [document_efficiency][google.cloud.dialogflow.v2beta1.AgentAssistantFeedback.document_efficiency]
-     * is
+     * too long to find useful information, [document_efficiency][google.cloud.dialogflow.v2beta1.AgentAssistantFeedback.document_efficiency] is
      * [DocumentEfficiency.INEFFICIENT][google.cloud.dialogflow.v2beta1.AgentAssistantFeedback.DocumentEfficiency.INEFFICIENT].
      * 

      *
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AgentAssistantFeedbackOrBuilder.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AgentAssistantFeedbackOrBuilder.java
index 92fde97ae..888ad9959 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AgentAssistantFeedbackOrBuilder.java
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AgentAssistantFeedbackOrBuilder.java
@@ -110,9 +110,7 @@ public interface AgentAssistantFeedbackOrBuilder
    * 
    * Optional. Whether or not the suggested document is efficient. For example,
    * if the document is poorly written, hard to understand, hard to use or
-   * too long to find useful information,
-   * [document_efficiency][google.cloud.dialogflow.v2beta1.AgentAssistantFeedback.document_efficiency]
-   * is
+   * too long to find useful information, [document_efficiency][google.cloud.dialogflow.v2beta1.AgentAssistantFeedback.document_efficiency] is
    * [DocumentEfficiency.INEFFICIENT][google.cloud.dialogflow.v2beta1.AgentAssistantFeedback.DocumentEfficiency.INEFFICIENT].
    * 

    *
@@ -129,9 +127,7 @@ public interface AgentAssistantFeedbackOrBuilder
    * 
    * Optional. Whether or not the suggested document is efficient. For example,
    * if the document is poorly written, hard to understand, hard to use or
-   * too long to find useful information,
-   * [document_efficiency][google.cloud.dialogflow.v2beta1.AgentAssistantFeedback.document_efficiency]
-   * is
+   * too long to find useful information, [document_efficiency][google.cloud.dialogflow.v2beta1.AgentAssistantFeedback.document_efficiency] is
    * [DocumentEfficiency.INEFFICIENT][google.cloud.dialogflow.v2beta1.AgentAssistantFeedback.DocumentEfficiency.INEFFICIENT].
    * 

    *
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AnswerRecord.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AnswerRecord.java
index 7f75ed111..e470ff721 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AnswerRecord.java
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AnswerRecord.java
@@ -36,12 +36,9 @@
  * agent assistant suggestion generated.
  * A typical workflow for customers provide feedback to an answer is:
  * 1. For human agent assistant, customers get suggestion via ListSuggestions
- *    API. Together with the answers,
- *    [AnswerRecord.name][google.cloud.dialogflow.v2beta1.AnswerRecord.name] are
- *    returned to the customers.
- * 2. The customer uses the
- * [AnswerRecord.name][google.cloud.dialogflow.v2beta1.AnswerRecord.name] to
- * call the
+ *    API. Together with the answers, [AnswerRecord.name][google.cloud.dialogflow.v2beta1.AnswerRecord.name] are returned to the
+ *    customers.
+ * 2. The customer uses the [AnswerRecord.name][google.cloud.dialogflow.v2beta1.AnswerRecord.name] to call the
  *    [UpdateAnswerRecord][] method to send feedback about a specific answer
  *    that they believe is wrong.
  * 
@@ -220,9 +217,8 @@ public RecordCase getRecordCase() {
    *
    * 
    * The unique identifier of this answer record.
-   * Required for
-   * [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord]
-   * method. Format: `projects/<Project ID>/locations/<Location
+   * Required for [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord] method.
+   * Format: `projects/<Project ID>/locations/<Location
    * ID>/answerRecords/<Answer Record ID>`.
    * 

    *
@@ -247,9 +243,8 @@ public java.lang.String getName() {
    *
    * 
    * The unique identifier of this answer record.
-   * Required for
-   * [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord]
-   * method. Format: `projects/<Project ID>/locations/<Location
+   * Required for [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord] method.
+   * Format: `projects/<Project ID>/locations/<Location
    * ID>/answerRecords/<Answer Record ID>`.
    * 

    *
@@ -277,8 +272,8 @@ public com.google.protobuf.ByteString getNameBytes() {
    *
    * 
    * Optional. The AnswerFeedback for this record. You can set this with
-   * [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord]
-   * in order to give us feedback about this answer.
+   * [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord] in order to give us feedback about
+   * this answer.
    * 

    *
    * .google.cloud.dialogflow.v2beta1.AnswerFeedback answer_feedback = 3;
@@ -294,8 +289,8 @@ public boolean hasAnswerFeedback() {
    *
    * 
    * Optional. The AnswerFeedback for this record. You can set this with
-   * [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord]
-   * in order to give us feedback about this answer.
+   * [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord] in order to give us feedback about
+   * this answer.
    * 

    *
    * .google.cloud.dialogflow.v2beta1.AnswerFeedback answer_feedback = 3;
@@ -313,8 +308,8 @@ public com.google.cloud.dialogflow.v2beta1.AnswerFeedback getAnswerFeedback() {
    *
    * 
    * Optional. The AnswerFeedback for this record. You can set this with
-   * [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord]
-   * in order to give us feedback about this answer.
+   * [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord] in order to give us feedback about
+   * this answer.
    * 

    *
    * .google.cloud.dialogflow.v2beta1.AnswerFeedback answer_feedback = 3;
@@ -591,12 +586,9 @@ protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.Build
    * agent assistant suggestion generated.
    * A typical workflow for customers provide feedback to an answer is:
    * 1. For human agent assistant, customers get suggestion via ListSuggestions
-   *    API. Together with the answers,
-   *    [AnswerRecord.name][google.cloud.dialogflow.v2beta1.AnswerRecord.name] are
-   *    returned to the customers.
-   * 2. The customer uses the
-   * [AnswerRecord.name][google.cloud.dialogflow.v2beta1.AnswerRecord.name] to
-   * call the
+   *    API. Together with the answers, [AnswerRecord.name][google.cloud.dialogflow.v2beta1.AnswerRecord.name] are returned to the
+   *    customers.
+   * 2. The customer uses the [AnswerRecord.name][google.cloud.dialogflow.v2beta1.AnswerRecord.name] to call the
    *    [UpdateAnswerRecord][] method to send feedback about a specific answer
    *    that they believe is wrong.
    * 
@@ -807,9 +799,8 @@ public Builder clearRecord() {
      *
      * 
      * The unique identifier of this answer record.
-     * Required for
-     * [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord]
-     * method. Format: `projects/<Project ID>/locations/<Location
+     * Required for [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord] method.
+     * Format: `projects/<Project ID>/locations/<Location
      * ID>/answerRecords/<Answer Record ID>`.
      * 

      *
@@ -833,9 +824,8 @@ public java.lang.String getName() {
      *
      * 
      * The unique identifier of this answer record.
-     * Required for
-     * [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord]
-     * method. Format: `projects/<Project ID>/locations/<Location
+     * Required for [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord] method.
+     * Format: `projects/<Project ID>/locations/<Location
      * ID>/answerRecords/<Answer Record ID>`.
      * 

      *
@@ -859,9 +849,8 @@ public com.google.protobuf.ByteString getNameBytes() {
      *
      * 
      * The unique identifier of this answer record.
-     * Required for
-     * [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord]
-     * method. Format: `projects/<Project ID>/locations/<Location
+     * Required for [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord] method.
+     * Format: `projects/<Project ID>/locations/<Location
      * ID>/answerRecords/<Answer Record ID>`.
      * 

      *
@@ -884,9 +873,8 @@ public Builder setName(java.lang.String value) {
      *
      * 
      * The unique identifier of this answer record.
-     * Required for
-     * [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord]
-     * method. Format: `projects/<Project ID>/locations/<Location
+     * Required for [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord] method.
+     * Format: `projects/<Project ID>/locations/<Location
      * ID>/answerRecords/<Answer Record ID>`.
      * 

      *
@@ -905,9 +893,8 @@ public Builder clearName() {
      *
      * 
      * The unique identifier of this answer record.
-     * Required for
-     * [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord]
-     * method. Format: `projects/<Project ID>/locations/<Location
+     * Required for [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord] method.
+     * Format: `projects/<Project ID>/locations/<Location
      * ID>/answerRecords/<Answer Record ID>`.
      * 

      *
@@ -938,8 +925,8 @@ public Builder setNameBytes(com.google.protobuf.ByteString value) {
      *
      * 
      * Optional. The AnswerFeedback for this record. You can set this with
-     * [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord]
-     * in order to give us feedback about this answer.
+     * [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord] in order to give us feedback about
+     * this answer.
      * 

      *
      * .google.cloud.dialogflow.v2beta1.AnswerFeedback answer_feedback = 3;
@@ -954,8 +941,8 @@ public boolean hasAnswerFeedback() {
      *
      * 
      * Optional. The AnswerFeedback for this record. You can set this with
-     * [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord]
-     * in order to give us feedback about this answer.
+     * [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord] in order to give us feedback about
+     * this answer.
      * 

      *
      * .google.cloud.dialogflow.v2beta1.AnswerFeedback answer_feedback = 3;
@@ -976,8 +963,8 @@ public com.google.cloud.dialogflow.v2beta1.AnswerFeedback getAnswerFeedback() {
      *
      * 
      * Optional. The AnswerFeedback for this record. You can set this with
-     * [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord]
-     * in order to give us feedback about this answer.
+     * [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord] in order to give us feedback about
+     * this answer.
      * 

      *
      * .google.cloud.dialogflow.v2beta1.AnswerFeedback answer_feedback = 3;
@@ -1000,8 +987,8 @@ public Builder setAnswerFeedback(com.google.cloud.dialogflow.v2beta1.AnswerFeedb
      *
      * 
      * Optional. The AnswerFeedback for this record. You can set this with
-     * [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord]
-     * in order to give us feedback about this answer.
+     * [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord] in order to give us feedback about
+     * this answer.
      * 

      *
      * .google.cloud.dialogflow.v2beta1.AnswerFeedback answer_feedback = 3;
@@ -1022,8 +1009,8 @@ public Builder setAnswerFeedback(
      *
      * 
      * Optional. The AnswerFeedback for this record. You can set this with
-     * [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord]
-     * in order to give us feedback about this answer.
+     * [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord] in order to give us feedback about
+     * this answer.
      * 

      *
      * .google.cloud.dialogflow.v2beta1.AnswerFeedback answer_feedback = 3;
@@ -1050,8 +1037,8 @@ public Builder mergeAnswerFeedback(com.google.cloud.dialogflow.v2beta1.AnswerFee
      *
      * 
      * Optional. The AnswerFeedback for this record. You can set this with
-     * [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord]
-     * in order to give us feedback about this answer.
+     * [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord] in order to give us feedback about
+     * this answer.
      * 

      *
      * .google.cloud.dialogflow.v2beta1.AnswerFeedback answer_feedback = 3;
@@ -1072,8 +1059,8 @@ public Builder clearAnswerFeedback() {
      *
      * 
      * Optional. The AnswerFeedback for this record. You can set this with
-     * [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord]
-     * in order to give us feedback about this answer.
+     * [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord] in order to give us feedback about
+     * this answer.
      * 

      *
      * .google.cloud.dialogflow.v2beta1.AnswerFeedback answer_feedback = 3;
@@ -1088,8 +1075,8 @@ public com.google.cloud.dialogflow.v2beta1.AnswerFeedback.Builder getAnswerFeedb
      *
      * 
      * Optional. The AnswerFeedback for this record. You can set this with
-     * [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord]
-     * in order to give us feedback about this answer.
+     * [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord] in order to give us feedback about
+     * this answer.
      * 

      *
      * .google.cloud.dialogflow.v2beta1.AnswerFeedback answer_feedback = 3;
@@ -1109,8 +1096,8 @@ public com.google.cloud.dialogflow.v2beta1.AnswerFeedback.Builder getAnswerFeedb
      *
      * 
      * Optional. The AnswerFeedback for this record. You can set this with
-     * [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord]
-     * in order to give us feedback about this answer.
+     * [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord] in order to give us feedback about
+     * this answer.
      * 

      *
      * .google.cloud.dialogflow.v2beta1.AnswerFeedback answer_feedback = 3;
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AnswerRecordOrBuilder.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AnswerRecordOrBuilder.java
index e96543db2..33c472977 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AnswerRecordOrBuilder.java
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AnswerRecordOrBuilder.java
@@ -28,9 +28,8 @@ public interface AnswerRecordOrBuilder
    *
    * 
    * The unique identifier of this answer record.
-   * Required for
-   * [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord]
-   * method. Format: `projects/<Project ID>/locations/<Location
+   * Required for [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord] method.
+   * Format: `projects/<Project ID>/locations/<Location
    * ID>/answerRecords/<Answer Record ID>`.
    * 

    *
@@ -44,9 +43,8 @@ public interface AnswerRecordOrBuilder
    *
    * 
    * The unique identifier of this answer record.
-   * Required for
-   * [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord]
-   * method. Format: `projects/<Project ID>/locations/<Location
+   * Required for [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord] method.
+   * Format: `projects/<Project ID>/locations/<Location
    * ID>/answerRecords/<Answer Record ID>`.
    * 

    *
@@ -61,8 +59,8 @@ public interface AnswerRecordOrBuilder
    *
    * 
    * Optional. The AnswerFeedback for this record. You can set this with
-   * [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord]
-   * in order to give us feedback about this answer.
+   * [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord] in order to give us feedback about
+   * this answer.
    * 

    *
    * .google.cloud.dialogflow.v2beta1.AnswerFeedback answer_feedback = 3;
@@ -75,8 +73,8 @@ public interface AnswerRecordOrBuilder
    *
    * 
    * Optional. The AnswerFeedback for this record. You can set this with
-   * [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord]
-   * in order to give us feedback about this answer.
+   * [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord] in order to give us feedback about
+   * this answer.
    * 

    *
    * .google.cloud.dialogflow.v2beta1.AnswerFeedback answer_feedback = 3;
@@ -89,8 +87,8 @@ public interface AnswerRecordOrBuilder
    *
    * 
    * Optional. The AnswerFeedback for this record. You can set this with
-   * [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord]
-   * in order to give us feedback about this answer.
+   * [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord] in order to give us feedback about
+   * this answer.
    * 

    *
    * .google.cloud.dialogflow.v2beta1.AnswerFeedback answer_feedback = 3;
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/BatchCreateMessagesRequest.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/BatchCreateMessagesRequest.java
index cb4427838..c73a8a034 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/BatchCreateMessagesRequest.java
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/BatchCreateMessagesRequest.java
@@ -195,8 +195,7 @@ public com.google.protobuf.ByteString getParentBytes() {
    * 
    * Required. A maximum of 1000 Messages can be created in a batch.
    * [CreateMessageRequest.message.send_time][] is required. All created
-   * messages will have identical
-   * [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
+   * messages will have identical [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
    * 

    *
    * 
@@ -214,8 +213,7 @@ public com.google.protobuf.ByteString getParentBytes() {
    * 
    * Required. A maximum of 1000 Messages can be created in a batch.
    * [CreateMessageRequest.message.send_time][] is required. All created
-   * messages will have identical
-   * [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
+   * messages will have identical [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
    * 

    *
    * 
@@ -233,8 +231,7 @@ public com.google.protobuf.ByteString getParentBytes() {
    * 
    * Required. A maximum of 1000 Messages can be created in a batch.
    * [CreateMessageRequest.message.send_time][] is required. All created
-   * messages will have identical
-   * [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
+   * messages will have identical [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
    * 

    *
    * 
@@ -251,8 +248,7 @@ public int getRequestsCount() {
    * 
    * Required. A maximum of 1000 Messages can be created in a batch.
    * [CreateMessageRequest.message.send_time][] is required. All created
-   * messages will have identical
-   * [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
+   * messages will have identical [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
    * 

    *
    * 
@@ -269,8 +265,7 @@ public com.google.cloud.dialogflow.v2beta1.CreateMessageRequest getRequests(int
    * 
    * Required. A maximum of 1000 Messages can be created in a batch.
    * [CreateMessageRequest.message.send_time][] is required. All created
-   * messages will have identical
-   * [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
+   * messages will have identical [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
    * 

    *
    * 
@@ -813,8 +808,7 @@ private void ensureRequestsIsMutable() {
      * 
      * Required. A maximum of 1000 Messages can be created in a batch.
      * [CreateMessageRequest.message.send_time][] is required. All created
-     * messages will have identical
-     * [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
+     * messages will have identical [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
      * 

      *
      * 
@@ -835,8 +829,7 @@ private void ensureRequestsIsMutable() {
      * 
      * Required. A maximum of 1000 Messages can be created in a batch.
      * [CreateMessageRequest.message.send_time][] is required. All created
-     * messages will have identical
-     * [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
+     * messages will have identical [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
      * 

      *
      * 
@@ -856,8 +849,7 @@ public int getRequestsCount() {
      * 
      * Required. A maximum of 1000 Messages can be created in a batch.
      * [CreateMessageRequest.message.send_time][] is required. All created
-     * messages will have identical
-     * [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
+     * messages will have identical [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
      * 

      *
      * 
@@ -877,8 +869,7 @@ public com.google.cloud.dialogflow.v2beta1.CreateMessageRequest getRequests(int
      * 
      * Required. A maximum of 1000 Messages can be created in a batch.
      * [CreateMessageRequest.message.send_time][] is required. All created
-     * messages will have identical
-     * [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
+     * messages will have identical [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
      * 

      *
      * 
@@ -905,8 +896,7 @@ public Builder setRequests(
      * 
      * Required. A maximum of 1000 Messages can be created in a batch.
      * [CreateMessageRequest.message.send_time][] is required. All created
-     * messages will have identical
-     * [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
+     * messages will have identical [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
      * 

      *
      * 
@@ -931,8 +921,7 @@ public Builder setRequests(
      * 
      * Required. A maximum of 1000 Messages can be created in a batch.
      * [CreateMessageRequest.message.send_time][] is required. All created
-     * messages will have identical
-     * [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
+     * messages will have identical [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
      * 

      *
      * 
@@ -958,8 +947,7 @@ public Builder addRequests(com.google.cloud.dialogflow.v2beta1.CreateMessageRequ
      * 
      * Required. A maximum of 1000 Messages can be created in a batch.
      * [CreateMessageRequest.message.send_time][] is required. All created
-     * messages will have identical
-     * [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
+     * messages will have identical [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
      * 

      *
      * 
@@ -986,8 +974,7 @@ public Builder addRequests(
      * 
      * Required. A maximum of 1000 Messages can be created in a batch.
      * [CreateMessageRequest.message.send_time][] is required. All created
-     * messages will have identical
-     * [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
+     * messages will have identical [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
      * 

      *
      * 
@@ -1011,8 +998,7 @@ public Builder addRequests(
      * 
      * Required. A maximum of 1000 Messages can be created in a batch.
      * [CreateMessageRequest.message.send_time][] is required. All created
-     * messages will have identical
-     * [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
+     * messages will have identical [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
      * 

      *
      * 
@@ -1037,8 +1023,7 @@ public Builder addRequests(
      * 
      * Required. A maximum of 1000 Messages can be created in a batch.
      * [CreateMessageRequest.message.send_time][] is required. All created
-     * messages will have identical
-     * [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
+     * messages will have identical [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
      * 

      *
      * 
@@ -1063,8 +1048,7 @@ public Builder addAllRequests(
      * 
      * Required. A maximum of 1000 Messages can be created in a batch.
      * [CreateMessageRequest.message.send_time][] is required. All created
-     * messages will have identical
-     * [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
+     * messages will have identical [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
      * 

      *
      * 
@@ -1087,8 +1071,7 @@ public Builder clearRequests() {
      * 
      * Required. A maximum of 1000 Messages can be created in a batch.
      * [CreateMessageRequest.message.send_time][] is required. All created
-     * messages will have identical
-     * [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
+     * messages will have identical [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
      * 

      *
      * 
@@ -1111,8 +1094,7 @@ public Builder removeRequests(int index) {
      * 
      * Required. A maximum of 1000 Messages can be created in a batch.
      * [CreateMessageRequest.message.send_time][] is required. All created
-     * messages will have identical
-     * [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
+     * messages will have identical [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
      * 

      *
      * 
@@ -1129,8 +1111,7 @@ public com.google.cloud.dialogflow.v2beta1.CreateMessageRequest.Builder getReque
      * 
      * Required. A maximum of 1000 Messages can be created in a batch.
      * [CreateMessageRequest.message.send_time][] is required. All created
-     * messages will have identical
-     * [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
+     * messages will have identical [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
      * 

      *
      * 
@@ -1151,8 +1132,7 @@ public com.google.cloud.dialogflow.v2beta1.CreateMessageRequestOrBuilder getRequ
      * 
      * Required. A maximum of 1000 Messages can be created in a batch.
      * [CreateMessageRequest.message.send_time][] is required. All created
-     * messages will have identical
-     * [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
+     * messages will have identical [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
      * 

      *
      * 
@@ -1174,8 +1154,7 @@ public com.google.cloud.dialogflow.v2beta1.CreateMessageRequestOrBuilder getRequ
      * 
      * Required. A maximum of 1000 Messages can be created in a batch.
      * [CreateMessageRequest.message.send_time][] is required. All created
-     * messages will have identical
-     * [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
+     * messages will have identical [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
      * 

      *
      * 
@@ -1193,8 +1172,7 @@ public com.google.cloud.dialogflow.v2beta1.CreateMessageRequest.Builder addReque
      * 
      * Required. A maximum of 1000 Messages can be created in a batch.
      * [CreateMessageRequest.message.send_time][] is required. All created
-     * messages will have identical
-     * [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
+     * messages will have identical [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
      * 

      *
      * 
@@ -1213,8 +1191,7 @@ public com.google.cloud.dialogflow.v2beta1.CreateMessageRequest.Builder addReque
      * 
      * Required. A maximum of 1000 Messages can be created in a batch.
      * [CreateMessageRequest.message.send_time][] is required. All created
-     * messages will have identical
-     * [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
+     * messages will have identical [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
      * 

      *
      * 
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/BatchCreateMessagesRequestOrBuilder.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/BatchCreateMessagesRequestOrBuilder.java
index 2965ed156..5f5afbb94 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/BatchCreateMessagesRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/BatchCreateMessagesRequestOrBuilder.java
@@ -62,8 +62,7 @@ public interface BatchCreateMessagesRequestOrBuilder
    * 
    * Required. A maximum of 1000 Messages can be created in a batch.
    * [CreateMessageRequest.message.send_time][] is required. All created
-   * messages will have identical
-   * [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
+   * messages will have identical [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
    * 

    *
    * 
@@ -77,8 +76,7 @@ public interface BatchCreateMessagesRequestOrBuilder
    * 
    * Required. A maximum of 1000 Messages can be created in a batch.
    * [CreateMessageRequest.message.send_time][] is required. All created
-   * messages will have identical
-   * [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
+   * messages will have identical [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
    * 

    *
    * 
@@ -92,8 +90,7 @@ public interface BatchCreateMessagesRequestOrBuilder
    * 
    * Required. A maximum of 1000 Messages can be created in a batch.
    * [CreateMessageRequest.message.send_time][] is required. All created
-   * messages will have identical
-   * [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
+   * messages will have identical [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
    * 

    *
    * 
@@ -107,8 +104,7 @@ public interface BatchCreateMessagesRequestOrBuilder
    * 
    * Required. A maximum of 1000 Messages can be created in a batch.
    * [CreateMessageRequest.message.send_time][] is required. All created
-   * messages will have identical
-   * [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
+   * messages will have identical [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
    * 

    *
    * 
@@ -123,8 +119,7 @@ public interface BatchCreateMessagesRequestOrBuilder
    * 
    * Required. A maximum of 1000 Messages can be created in a batch.
    * [CreateMessageRequest.message.send_time][] is required. All created
-   * messages will have identical
-   * [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
+   * messages will have identical [Message.create_time][google.cloud.dialogflow.v2beta1.Message.create_time].
    * 

    *
    * 
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CompleteConversationRequest.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CompleteConversationRequest.java
index cdd7b5ff6..51d83f210 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CompleteConversationRequest.java
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CompleteConversationRequest.java
@@ -22,8 +22,7 @@
  *
  *
  * 
- * The request message for
- * [Conversations.CompleteConversation][google.cloud.dialogflow.v2beta1.Conversations.CompleteConversation].
+ * The request message for [Conversations.CompleteConversation][google.cloud.dialogflow.v2beta1.Conversations.CompleteConversation].
  * 

  *
  * Protobuf type {@code google.cloud.dialogflow.v2beta1.CompleteConversationRequest}
@@ -333,8 +332,7 @@ protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.Build
    *
    *
    * 
-   * The request message for
-   * [Conversations.CompleteConversation][google.cloud.dialogflow.v2beta1.Conversations.CompleteConversation].
+   * The request message for [Conversations.CompleteConversation][google.cloud.dialogflow.v2beta1.Conversations.CompleteConversation].
    * 

    *
    * Protobuf type {@code google.cloud.dialogflow.v2beta1.CompleteConversationRequest}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ContextName.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ContextName.java
index 4cc0cefc0..10d2b4131 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ContextName.java
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ContextName.java
@@ -40,6 +40,9 @@ public class ContextName implements ResourceName {
   private static final PathTemplate PROJECT_LOCATION_SESSION_CONTEXT =
       PathTemplate.createWithoutUrlEncoding(
           "projects/{project}/locations/{location}/agent/sessions/{session}/contexts/{context}");
+  private static final PathTemplate PROJECT_LOCATION_ENVIRONMENT_USER_SESSION_CONTEXT =
+      PathTemplate.createWithoutUrlEncoding(
+          "projects/{project}/locations/{location}/agent/environments/{environment}/users/{user}/sessions/{session}/contexts/{context}");
   private volatile Map fieldValuesMap;
   private PathTemplate pathTemplate;
   private String fixedValue;
@@ -90,6 +93,16 @@ private ContextName(ProjectLocationSessionContextBuilder builder) {
     pathTemplate = PROJECT_LOCATION_SESSION_CONTEXT;
   }
 
+  private ContextName(ProjectLocationEnvironmentUserSessionContextBuilder builder) {
+    project = Preconditions.checkNotNull(builder.getProject());
+    location = Preconditions.checkNotNull(builder.getLocation());
+    environment = Preconditions.checkNotNull(builder.getEnvironment());
+    user = Preconditions.checkNotNull(builder.getUser());
+    session = Preconditions.checkNotNull(builder.getSession());
+    context = Preconditions.checkNotNull(builder.getContext());
+    pathTemplate = PROJECT_LOCATION_ENVIRONMENT_USER_SESSION_CONTEXT;
+  }
+
   public String getProject() {
     return project;
   }
@@ -134,6 +147,12 @@ public static ProjectLocationSessionContextBuilder newProjectLocationSessionCont
     return new ProjectLocationSessionContextBuilder();
   }
 
+  @BetaApi("The per-pattern Builders are not stable yet and may be changed in the future.")
+  public static ProjectLocationEnvironmentUserSessionContextBuilder
+      newProjectLocationEnvironmentUserSessionContextBuilder() {
+    return new ProjectLocationEnvironmentUserSessionContextBuilder();
+  }
+
   public Builder toBuilder() {
     return new Builder(this);
   }
@@ -171,6 +190,24 @@ public static ContextName ofProjectLocationSessionContextName(
         .build();
   }
 
+  @BetaApi("The static create methods are not stable yet and may be changed in the future.")
+  public static ContextName ofProjectLocationEnvironmentUserSessionContextName(
+      String project,
+      String location,
+      String environment,
+      String user,
+      String session,
+      String context) {
+    return newProjectLocationEnvironmentUserSessionContextBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setEnvironment(environment)
+        .setUser(user)
+        .setSession(session)
+        .setContext(context)
+        .build();
+  }
+
   public static String format(String project, String session, String context) {
     return newBuilder()
         .setProject(project)
@@ -216,6 +253,25 @@ public static String formatProjectLocationSessionContextName(
         .toString();
   }
 
+  @BetaApi("The static format methods are not stable yet and may be changed in the future.")
+  public static String formatProjectLocationEnvironmentUserSessionContextName(
+      String project,
+      String location,
+      String environment,
+      String user,
+      String session,
+      String context) {
+    return newProjectLocationEnvironmentUserSessionContextBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setEnvironment(environment)
+        .setUser(user)
+        .setSession(session)
+        .setContext(context)
+        .build()
+        .toString();
+  }
+
   public static ContextName parse(String formattedString) {
     if (formattedString.isEmpty()) {
       return null;
@@ -240,6 +296,16 @@ public static ContextName parse(String formattedString) {
           matchMap.get("location"),
           matchMap.get("session"),
           matchMap.get("context"));
+    } else if (PROJECT_LOCATION_ENVIRONMENT_USER_SESSION_CONTEXT.matches(formattedString)) {
+      Map matchMap =
+          PROJECT_LOCATION_ENVIRONMENT_USER_SESSION_CONTEXT.match(formattedString);
+      return ofProjectLocationEnvironmentUserSessionContextName(
+          matchMap.get("project"),
+          matchMap.get("location"),
+          matchMap.get("environment"),
+          matchMap.get("user"),
+          matchMap.get("session"),
+          matchMap.get("context"));
     }
     throw new ValidationException("ContextName.parse: formattedString not in valid format");
   }
@@ -267,7 +333,8 @@ public static List toStringList(List values) {
   public static boolean isParsableFrom(String formattedString) {
     return PROJECT_SESSION_CONTEXT.matches(formattedString)
         || PROJECT_ENVIRONMENT_USER_SESSION_CONTEXT.matches(formattedString)
-        || PROJECT_LOCATION_SESSION_CONTEXT.matches(formattedString);
+        || PROJECT_LOCATION_SESSION_CONTEXT.matches(formattedString)
+        || PROJECT_LOCATION_ENVIRONMENT_USER_SESSION_CONTEXT.matches(formattedString);
   }
 
   @Override
@@ -513,4 +580,78 @@ public ContextName build() {
       return new ContextName(this);
     }
   }
+
+  /**
+   * Builder for
+   * projects/{project}/locations/{location}/agent/environments/{environment}/users/{user}/sessions/{session}/contexts/{context}.
+   */
+  @BetaApi("The per-pattern Builders are not stable yet and may be changed in the future.")
+  public static class ProjectLocationEnvironmentUserSessionContextBuilder {
+    private String project;
+    private String location;
+    private String environment;
+    private String user;
+    private String session;
+    private String context;
+
+    protected ProjectLocationEnvironmentUserSessionContextBuilder() {}
+
+    public String getProject() {
+      return project;
+    }
+
+    public String getLocation() {
+      return location;
+    }
+
+    public String getEnvironment() {
+      return environment;
+    }
+
+    public String getUser() {
+      return user;
+    }
+
+    public String getSession() {
+      return session;
+    }
+
+    public String getContext() {
+      return context;
+    }
+
+    public ProjectLocationEnvironmentUserSessionContextBuilder setProject(String project) {
+      this.project = project;
+      return this;
+    }
+
+    public ProjectLocationEnvironmentUserSessionContextBuilder setLocation(String location) {
+      this.location = location;
+      return this;
+    }
+
+    public ProjectLocationEnvironmentUserSessionContextBuilder setEnvironment(String environment) {
+      this.environment = environment;
+      return this;
+    }
+
+    public ProjectLocationEnvironmentUserSessionContextBuilder setUser(String user) {
+      this.user = user;
+      return this;
+    }
+
+    public ProjectLocationEnvironmentUserSessionContextBuilder setSession(String session) {
+      this.session = session;
+      return this;
+    }
+
+    public ProjectLocationEnvironmentUserSessionContextBuilder setContext(String context) {
+      this.context = context;
+      return this;
+    }
+
+    public ContextName build() {
+      return new ContextName(this);
+    }
+  }
 }
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ContextProto.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ContextProto.java
index 7cecfc75b..c2f375247 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ContextProto.java
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ContextProto.java
@@ -75,111 +75,114 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "or.proto\032\031google/api/resource.proto\032\033goo"
           + "gle/protobuf/empty.proto\032 google/protobu"
           + "f/field_mask.proto\032\034google/protobuf/stru"
-          + "ct.proto\"\203\003\n\007Context\022\014\n\004name\030\001 \001(\t\022\026\n\016li"
+          + "ct.proto\"\200\004\n\007Context\022\014\n\004name\030\001 \001(\t\022\026\n\016li"
           + "fespan_count\030\002 \001(\005\022+\n\nparameters\030\003 \001(\0132\027"
-          + ".google.protobuf.Struct:\244\002\352A\240\002\n!dialogfl"
+          + ".google.protobuf.Struct:\241\003\352A\235\003\n!dialogfl"
           + "ow.googleapis.com/Context\022>projects/{pro"
           + "ject}/agent/sessions/{session}/contexts/"
           + "{context}\022fprojects/{project}/agent/envi"
           + "ronments/{environment}/users/{user}/sess"
           + "ions/{session}/contexts/{context}\022Sproje"
           + "cts/{project}/locations/{location}/agent"
-          + "/sessions/{session}/contexts/{context}\"w"
-          + "\n\023ListContextsRequest\0229\n\006parent\030\001 \001(\tB)\340"
-          + "A\002\372A#\022!dialogflow.googleapis.com/Context"
-          + "\022\021\n\tpage_size\030\002 \001(\005\022\022\n\npage_token\030\003 \001(\t\""
-          + "k\n\024ListContextsResponse\022:\n\010contexts\030\001 \003("
-          + "\0132(.google.cloud.dialogflow.v2beta1.Cont"
-          + "ext\022\027\n\017next_page_token\030\002 \001(\t\"L\n\021GetConte"
-          + "xtRequest\0227\n\004name\030\001 \001(\tB)\340A\002\372A#\n!dialogf"
-          + "low.googleapis.com/Context\"\221\001\n\024CreateCon"
-          + "textRequest\0229\n\006parent\030\001 \001(\tB)\340A\002\372A#\022!dia"
-          + "logflow.googleapis.com/Context\022>\n\007contex"
-          + "t\030\002 \001(\0132(.google.cloud.dialogflow.v2beta"
-          + "1.ContextB\003\340A\002\"\214\001\n\024UpdateContextRequest\022"
-          + ">\n\007context\030\001 \001(\0132(.google.cloud.dialogfl"
-          + "ow.v2beta1.ContextB\003\340A\002\0224\n\013update_mask\030\002"
-          + " \001(\0132\032.google.protobuf.FieldMaskB\003\340A\001\"O\n"
-          + "\024DeleteContextRequest\0227\n\004name\030\001 \001(\tB)\340A\002"
-          + "\372A#\n!dialogflow.googleapis.com/Context\"U"
-          + "\n\030DeleteAllContextsRequest\0229\n\006parent\030\001 \001"
+          + "/sessions/{session}/contexts/{context}\022{"
+          + "projects/{project}/locations/{location}/"
+          + "agent/environments/{environment}/users/{"
+          + "user}/sessions/{session}/contexts/{conte"
+          + "xt}\"w\n\023ListContextsRequest\0229\n\006parent\030\001 \001"
           + "(\tB)\340A\002\372A#\022!dialogflow.googleapis.com/Co"
-          + "ntext2\234\026\n\010Contexts\022\272\003\n\014ListContexts\0224.go"
-          + "ogle.cloud.dialogflow.v2beta1.ListContex"
-          + "tsRequest\0325.google.cloud.dialogflow.v2be"
-          + "ta1.ListContextsResponse\"\274\002\202\323\344\223\002\254\002\0226/v2b"
-          + "eta1/{parent=projects/*/agent/sessions/*"
-          + "}/contextsZO\022M/v2beta1/{parent=projects/"
-          + "*/agent/environments/*/users/*/sessions/"
-          + "*}/contextsZD\022B/v2beta1/{parent=projects"
-          + "/*/locations/*/agent/sessions/*}/context"
-          + "sZ[\022Y/v2beta1/{parent=projects/*/locatio"
+          + "ntext\022\021\n\tpage_size\030\002 \001(\005\022\022\n\npage_token\030\003"
+          + " \001(\t\"k\n\024ListContextsResponse\022:\n\010contexts"
+          + "\030\001 \003(\0132(.google.cloud.dialogflow.v2beta1"
+          + ".Context\022\027\n\017next_page_token\030\002 \001(\t\"L\n\021Get"
+          + "ContextRequest\0227\n\004name\030\001 \001(\tB)\340A\002\372A#\n!di"
+          + "alogflow.googleapis.com/Context\"\221\001\n\024Crea"
+          + "teContextRequest\0229\n\006parent\030\001 \001(\tB)\340A\002\372A#"
+          + "\022!dialogflow.googleapis.com/Context\022>\n\007c"
+          + "ontext\030\002 \001(\0132(.google.cloud.dialogflow.v"
+          + "2beta1.ContextB\003\340A\002\"\214\001\n\024UpdateContextReq"
+          + "uest\022>\n\007context\030\001 \001(\0132(.google.cloud.dia"
+          + "logflow.v2beta1.ContextB\003\340A\002\0224\n\013update_m"
+          + "ask\030\002 \001(\0132\032.google.protobuf.FieldMaskB\003\340"
+          + "A\001\"O\n\024DeleteContextRequest\0227\n\004name\030\001 \001(\t"
+          + "B)\340A\002\372A#\n!dialogflow.googleapis.com/Cont"
+          + "ext\"U\n\030DeleteAllContextsRequest\0229\n\006paren"
+          + "t\030\001 \001(\tB)\340A\002\372A#\022!dialogflow.googleapis.c"
+          + "om/Context2\234\026\n\010Contexts\022\272\003\n\014ListContexts"
+          + "\0224.google.cloud.dialogflow.v2beta1.ListC"
+          + "ontextsRequest\0325.google.cloud.dialogflow"
+          + ".v2beta1.ListContextsResponse\"\274\002\202\323\344\223\002\254\002\022"
+          + "6/v2beta1/{parent=projects/*/agent/sessi"
+          + "ons/*}/contextsZO\022M/v2beta1/{parent=proj"
+          + "ects/*/agent/environments/*/users/*/sess"
+          + "ions/*}/contextsZD\022B/v2beta1/{parent=pro"
+          + "jects/*/locations/*/agent/sessions/*}/co"
+          + "ntextsZ[\022Y/v2beta1/{parent=projects/*/lo"
+          + "cations/*/agent/environments/*/users/*/s"
+          + "essions/*}/contexts\332A\006parent\022\247\003\n\nGetCont"
+          + "ext\0222.google.cloud.dialogflow.v2beta1.Ge"
+          + "tContextRequest\032(.google.cloud.dialogflo"
+          + "w.v2beta1.Context\"\272\002\202\323\344\223\002\254\002\0226/v2beta1/{n"
+          + "ame=projects/*/agent/sessions/*/contexts"
+          + "/*}ZO\022M/v2beta1/{name=projects/*/agent/e"
+          + "nvironments/*/users/*/sessions/*/context"
+          + "s/*}ZD\022B/v2beta1/{name=projects/*/locati"
+          + "ons/*/agent/sessions/*/contexts/*}Z[\022Y/v"
+          + "2beta1/{name=projects/*/locations/*/agen"
+          + "t/environments/*/users/*/sessions/*/cont"
+          + "exts/*}\332A\004name\022\333\003\n\rCreateContext\0225.googl"
+          + "e.cloud.dialogflow.v2beta1.CreateContext"
+          + "Request\032(.google.cloud.dialogflow.v2beta"
+          + "1.Context\"\350\002\202\323\344\223\002\320\002\"6/v2beta1/{parent=pr"
+          + "ojects/*/agent/sessions/*}/contexts:\007con"
+          + "textZX\"M/v2beta1/{parent=projects/*/agen"
+          + "t/environments/*/users/*/sessions/*}/con"
+          + "texts:\007contextZM\"B/v2beta1/{parent=proje"
+          + "cts/*/locations/*/agent/sessions/*}/cont"
+          + "exts:\007contextZd\"Y/v2beta1/{parent=projec"
+          + "ts/*/locations/*/agent/environments/*/us"
+          + "ers/*/sessions/*}/contexts:\007context\332A\016pa"
+          + "rent,context\022\212\004\n\rUpdateContext\0225.google."
+          + "cloud.dialogflow.v2beta1.UpdateContextRe"
+          + "quest\032(.google.cloud.dialogflow.v2beta1."
+          + "Context\"\227\003\202\323\344\223\002\360\0022>/v2beta1/{context.nam"
+          + "e=projects/*/agent/sessions/*/contexts/*"
+          + "}:\007contextZ`2U/v2beta1/{context.name=pro"
+          + "jects/*/agent/environments/*/users/*/ses"
+          + "sions/*/contexts/*}:\007contextZU2J/v2beta1"
+          + "/{context.name=projects/*/locations/*/ag"
+          + "ent/sessions/*/contexts/*}:\007contextZl2a/"
+          + "v2beta1/{context.name=projects/*/locatio"
           + "ns/*/agent/environments/*/users/*/sessio"
-          + "ns/*}/contexts\332A\006parent\022\247\003\n\nGetContext\0222"
-          + ".google.cloud.dialogflow.v2beta1.GetCont"
-          + "extRequest\032(.google.cloud.dialogflow.v2b"
-          + "eta1.Context\"\272\002\202\323\344\223\002\254\002\0226/v2beta1/{name=p"
-          + "rojects/*/agent/sessions/*/contexts/*}ZO"
-          + "\022M/v2beta1/{name=projects/*/agent/enviro"
-          + "nments/*/users/*/sessions/*/contexts/*}Z"
-          + "D\022B/v2beta1/{name=projects/*/locations/*"
-          + "/agent/sessions/*/contexts/*}Z[\022Y/v2beta"
-          + "1/{name=projects/*/locations/*/agent/env"
-          + "ironments/*/users/*/sessions/*/contexts/"
-          + "*}\332A\004name\022\333\003\n\rCreateContext\0225.google.clo"
-          + "ud.dialogflow.v2beta1.CreateContextReque"
-          + "st\032(.google.cloud.dialogflow.v2beta1.Con"
-          + "text\"\350\002\202\323\344\223\002\320\002\"6/v2beta1/{parent=project"
-          + "s/*/agent/sessions/*}/contexts:\007contextZ"
-          + "X\"M/v2beta1/{parent=projects/*/agent/env"
-          + "ironments/*/users/*/sessions/*}/contexts"
-          + ":\007contextZM\"B/v2beta1/{parent=projects/*"
-          + "/locations/*/agent/sessions/*}/contexts:"
-          + "\007contextZd\"Y/v2beta1/{parent=projects/*/"
-          + "locations/*/agent/environments/*/users/*"
-          + "/sessions/*}/contexts:\007context\332A\016parent,"
-          + "context\022\212\004\n\rUpdateContext\0225.google.cloud"
-          + ".dialogflow.v2beta1.UpdateContextRequest"
-          + "\032(.google.cloud.dialogflow.v2beta1.Conte"
-          + "xt\"\227\003\202\323\344\223\002\360\0022>/v2beta1/{context.name=pro"
-          + "jects/*/agent/sessions/*/contexts/*}:\007co"
-          + "ntextZ`2U/v2beta1/{context.name=projects"
-          + "/*/agent/environments/*/users/*/sessions"
-          + "/*/contexts/*}:\007contextZU2J/v2beta1/{con"
-          + "text.name=projects/*/locations/*/agent/s"
-          + "essions/*/contexts/*}:\007contextZl2a/v2bet"
-          + "a1/{context.name=projects/*/locations/*/"
-          + "agent/environments/*/users/*/sessions/*/"
-          + "contexts/*}:\007context\332A\023context,update_ma"
-          + "sk\332A\007context\022\233\003\n\rDeleteContext\0225.google."
-          + "cloud.dialogflow.v2beta1.DeleteContextRe"
-          + "quest\032\026.google.protobuf.Empty\"\272\002\202\323\344\223\002\254\002*"
-          + "6/v2beta1/{name=projects/*/agent/session"
-          + "s/*/contexts/*}ZO*M/v2beta1/{name=projec"
-          + "ts/*/agent/environments/*/users/*/sessio"
-          + "ns/*/contexts/*}ZD*B/v2beta1/{name=proje"
-          + "cts/*/locations/*/agent/sessions/*/conte"
-          + "xts/*}Z[*Y/v2beta1/{name=projects/*/loca"
-          + "tions/*/agent/environments/*/users/*/ses"
-          + "sions/*/contexts/*}\332A\004name\022\245\003\n\021DeleteAll"
-          + "Contexts\0229.google.cloud.dialogflow.v2bet"
-          + "a1.DeleteAllContextsRequest\032\026.google.pro"
-          + "tobuf.Empty\"\274\002\202\323\344\223\002\254\002*6/v2beta1/{parent="
-          + "projects/*/agent/sessions/*}/contextsZO*"
-          + "M/v2beta1/{parent=projects/*/agent/envir"
-          + "onments/*/users/*/sessions/*}/contextsZD"
-          + "*B/v2beta1/{parent=projects/*/locations/"
-          + "*/agent/sessions/*}/contextsZ[*Y/v2beta1"
-          + "/{parent=projects/*/locations/*/agent/en"
-          + "vironments/*/users/*/sessions/*}/context"
-          + "s\332A\006parent\032x\312A\031dialogflow.googleapis.com"
-          + "\322AYhttps://www.googleapis.com/auth/cloud"
-          + "-platform,https://www.googleapis.com/aut"
-          + "h/dialogflowB\252\001\n#com.google.cloud.dialog"
-          + "flow.v2beta1B\014ContextProtoP\001ZIgoogle.gol"
-          + "ang.org/genproto/googleapis/cloud/dialog"
-          + "flow/v2beta1;dialogflow\370\001\001\242\002\002DF\252\002\037Google"
-          + ".Cloud.Dialogflow.V2beta1b\006proto3"
+          + "ns/*/contexts/*}:\007context\332A\023context,upda"
+          + "te_mask\332A\007context\022\233\003\n\rDeleteContext\0225.go"
+          + "ogle.cloud.dialogflow.v2beta1.DeleteCont"
+          + "extRequest\032\026.google.protobuf.Empty\"\272\002\202\323\344"
+          + "\223\002\254\002*6/v2beta1/{name=projects/*/agent/se"
+          + "ssions/*/contexts/*}ZO*M/v2beta1/{name=p"
+          + "rojects/*/agent/environments/*/users/*/s"
+          + "essions/*/contexts/*}ZD*B/v2beta1/{name="
+          + "projects/*/locations/*/agent/sessions/*/"
+          + "contexts/*}Z[*Y/v2beta1/{name=projects/*"
+          + "/locations/*/agent/environments/*/users/"
+          + "*/sessions/*/contexts/*}\332A\004name\022\245\003\n\021Dele"
+          + "teAllContexts\0229.google.cloud.dialogflow."
+          + "v2beta1.DeleteAllContextsRequest\032\026.googl"
+          + "e.protobuf.Empty\"\274\002\202\323\344\223\002\254\002*6/v2beta1/{pa"
+          + "rent=projects/*/agent/sessions/*}/contex"
+          + "tsZO*M/v2beta1/{parent=projects/*/agent/"
+          + "environments/*/users/*/sessions/*}/conte"
+          + "xtsZD*B/v2beta1/{parent=projects/*/locat"
+          + "ions/*/agent/sessions/*}/contextsZ[*Y/v2"
+          + "beta1/{parent=projects/*/locations/*/age"
+          + "nt/environments/*/users/*/sessions/*}/co"
+          + "ntexts\332A\006parent\032x\312A\031dialogflow.googleapi"
+          + "s.com\322AYhttps://www.googleapis.com/auth/"
+          + "cloud-platform,https://www.googleapis.co"
+          + "m/auth/dialogflowB\252\001\n#com.google.cloud.d"
+          + "ialogflow.v2beta1B\014ContextProtoP\001ZIgoogl"
+          + "e.golang.org/genproto/googleapis/cloud/d"
+          + "ialogflow/v2beta1;dialogflow\370\001\001\242\002\002DF\252\002\037G"
+          + "oogle.Cloud.Dialogflow.V2beta1b\006proto3"
     };
     descriptor =
         com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/Conversation.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/Conversation.java
index 3baa61a63..4949d347c 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/Conversation.java
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/Conversation.java
@@ -732,15 +732,12 @@ public com.google.cloud.dialogflow.v2beta1.ConversationPhoneNumber getPhoneNumbe
    * human agent is handling the conversation.
    * If the conversation is created with the conversation profile that has
    * Dialogflow config set, defaults to
-   * [ConversationStage.VIRTUAL_AGENT_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.VIRTUAL_AGENT_STAGE];
-   * Otherwise, defaults to
+   * [ConversationStage.VIRTUAL_AGENT_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.VIRTUAL_AGENT_STAGE]; Otherwise, defaults to
    * [ConversationStage.HUMAN_ASSIST_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.HUMAN_ASSIST_STAGE].
    * If the conversation is created with the conversation profile that has
    * Dialogflow config set but explicitly sets conversation_stage to
-   * [ConversationStage.HUMAN_ASSIST_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.HUMAN_ASSIST_STAGE],
-   * it skips
-   * [ConversationStage.VIRTUAL_AGENT_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.VIRTUAL_AGENT_STAGE]
-   * stage and directly goes to
+   * [ConversationStage.HUMAN_ASSIST_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.HUMAN_ASSIST_STAGE], it skips
+   * [ConversationStage.VIRTUAL_AGENT_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.VIRTUAL_AGENT_STAGE] stage and directly goes to
    * [ConversationStage.HUMAN_ASSIST_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.HUMAN_ASSIST_STAGE].
    * 
    *
@@ -761,15 +758,12 @@ public int getConversationStageValue() {
    * human agent is handling the conversation.
    * If the conversation is created with the conversation profile that has
    * Dialogflow config set, defaults to
-   * [ConversationStage.VIRTUAL_AGENT_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.VIRTUAL_AGENT_STAGE];
-   * Otherwise, defaults to
+   * [ConversationStage.VIRTUAL_AGENT_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.VIRTUAL_AGENT_STAGE]; Otherwise, defaults to
    * [ConversationStage.HUMAN_ASSIST_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.HUMAN_ASSIST_STAGE].
    * If the conversation is created with the conversation profile that has
    * Dialogflow config set but explicitly sets conversation_stage to
-   * [ConversationStage.HUMAN_ASSIST_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.HUMAN_ASSIST_STAGE],
-   * it skips
-   * [ConversationStage.VIRTUAL_AGENT_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.VIRTUAL_AGENT_STAGE]
-   * stage and directly goes to
+   * [ConversationStage.HUMAN_ASSIST_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.HUMAN_ASSIST_STAGE], it skips
+   * [ConversationStage.VIRTUAL_AGENT_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.VIRTUAL_AGENT_STAGE] stage and directly goes to
    * [ConversationStage.HUMAN_ASSIST_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.HUMAN_ASSIST_STAGE].
    * 
    *
@@ -1926,15 +1920,12 @@ public Builder clearPhoneNumber() {
      * human agent is handling the conversation.
      * If the conversation is created with the conversation profile that has
      * Dialogflow config set, defaults to
-     * [ConversationStage.VIRTUAL_AGENT_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.VIRTUAL_AGENT_STAGE];
-     * Otherwise, defaults to
+     * [ConversationStage.VIRTUAL_AGENT_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.VIRTUAL_AGENT_STAGE]; Otherwise, defaults to
      * [ConversationStage.HUMAN_ASSIST_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.HUMAN_ASSIST_STAGE].
      * If the conversation is created with the conversation profile that has
      * Dialogflow config set but explicitly sets conversation_stage to
-     * [ConversationStage.HUMAN_ASSIST_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.HUMAN_ASSIST_STAGE],
-     * it skips
-     * [ConversationStage.VIRTUAL_AGENT_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.VIRTUAL_AGENT_STAGE]
-     * stage and directly goes to
+     * [ConversationStage.HUMAN_ASSIST_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.HUMAN_ASSIST_STAGE], it skips
+     * [ConversationStage.VIRTUAL_AGENT_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.VIRTUAL_AGENT_STAGE] stage and directly goes to
      * [ConversationStage.HUMAN_ASSIST_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.HUMAN_ASSIST_STAGE].
      * 
      *
@@ -1955,15 +1946,12 @@ public int getConversationStageValue() {
      * human agent is handling the conversation.
      * If the conversation is created with the conversation profile that has
      * Dialogflow config set, defaults to
-     * [ConversationStage.VIRTUAL_AGENT_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.VIRTUAL_AGENT_STAGE];
-     * Otherwise, defaults to
+     * [ConversationStage.VIRTUAL_AGENT_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.VIRTUAL_AGENT_STAGE]; Otherwise, defaults to
      * [ConversationStage.HUMAN_ASSIST_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.HUMAN_ASSIST_STAGE].
      * If the conversation is created with the conversation profile that has
      * Dialogflow config set but explicitly sets conversation_stage to
-     * [ConversationStage.HUMAN_ASSIST_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.HUMAN_ASSIST_STAGE],
-     * it skips
-     * [ConversationStage.VIRTUAL_AGENT_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.VIRTUAL_AGENT_STAGE]
-     * stage and directly goes to
+     * [ConversationStage.HUMAN_ASSIST_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.HUMAN_ASSIST_STAGE], it skips
+     * [ConversationStage.VIRTUAL_AGENT_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.VIRTUAL_AGENT_STAGE] stage and directly goes to
      * [ConversationStage.HUMAN_ASSIST_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.HUMAN_ASSIST_STAGE].
      * 
      *
@@ -1987,15 +1975,12 @@ public Builder setConversationStageValue(int value) {
      * human agent is handling the conversation.
      * If the conversation is created with the conversation profile that has
      * Dialogflow config set, defaults to
-     * [ConversationStage.VIRTUAL_AGENT_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.VIRTUAL_AGENT_STAGE];
-     * Otherwise, defaults to
+     * [ConversationStage.VIRTUAL_AGENT_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.VIRTUAL_AGENT_STAGE]; Otherwise, defaults to
      * [ConversationStage.HUMAN_ASSIST_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.HUMAN_ASSIST_STAGE].
      * If the conversation is created with the conversation profile that has
      * Dialogflow config set but explicitly sets conversation_stage to
-     * [ConversationStage.HUMAN_ASSIST_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.HUMAN_ASSIST_STAGE],
-     * it skips
-     * [ConversationStage.VIRTUAL_AGENT_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.VIRTUAL_AGENT_STAGE]
-     * stage and directly goes to
+     * [ConversationStage.HUMAN_ASSIST_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.HUMAN_ASSIST_STAGE], it skips
+     * [ConversationStage.VIRTUAL_AGENT_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.VIRTUAL_AGENT_STAGE] stage and directly goes to
      * [ConversationStage.HUMAN_ASSIST_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.HUMAN_ASSIST_STAGE].
      * 
      *
@@ -2023,15 +2008,12 @@ public Builder setConversationStageValue(int value) {
      * human agent is handling the conversation.
      * If the conversation is created with the conversation profile that has
      * Dialogflow config set, defaults to
-     * [ConversationStage.VIRTUAL_AGENT_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.VIRTUAL_AGENT_STAGE];
-     * Otherwise, defaults to
+     * [ConversationStage.VIRTUAL_AGENT_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.VIRTUAL_AGENT_STAGE]; Otherwise, defaults to
      * [ConversationStage.HUMAN_ASSIST_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.HUMAN_ASSIST_STAGE].
      * If the conversation is created with the conversation profile that has
      * Dialogflow config set but explicitly sets conversation_stage to
-     * [ConversationStage.HUMAN_ASSIST_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.HUMAN_ASSIST_STAGE],
-     * it skips
-     * [ConversationStage.VIRTUAL_AGENT_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.VIRTUAL_AGENT_STAGE]
-     * stage and directly goes to
+     * [ConversationStage.HUMAN_ASSIST_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.HUMAN_ASSIST_STAGE], it skips
+     * [ConversationStage.VIRTUAL_AGENT_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.VIRTUAL_AGENT_STAGE] stage and directly goes to
      * [ConversationStage.HUMAN_ASSIST_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.HUMAN_ASSIST_STAGE].
      * 
      *
@@ -2059,15 +2041,12 @@ public Builder setConversationStage(
      * human agent is handling the conversation.
      * If the conversation is created with the conversation profile that has
      * Dialogflow config set, defaults to
-     * [ConversationStage.VIRTUAL_AGENT_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.VIRTUAL_AGENT_STAGE];
-     * Otherwise, defaults to
+     * [ConversationStage.VIRTUAL_AGENT_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.VIRTUAL_AGENT_STAGE]; Otherwise, defaults to
      * [ConversationStage.HUMAN_ASSIST_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.HUMAN_ASSIST_STAGE].
      * If the conversation is created with the conversation profile that has
      * Dialogflow config set but explicitly sets conversation_stage to
-     * [ConversationStage.HUMAN_ASSIST_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.HUMAN_ASSIST_STAGE],
-     * it skips
-     * [ConversationStage.VIRTUAL_AGENT_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.VIRTUAL_AGENT_STAGE]
-     * stage and directly goes to
+     * [ConversationStage.HUMAN_ASSIST_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.HUMAN_ASSIST_STAGE], it skips
+     * [ConversationStage.VIRTUAL_AGENT_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.VIRTUAL_AGENT_STAGE] stage and directly goes to
      * [ConversationStage.HUMAN_ASSIST_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.HUMAN_ASSIST_STAGE].
      * 
      *
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ConversationModelName.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ConversationModelName.java
new file mode 100644
index 000000000..f420b2b46
--- /dev/null
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ConversationModelName.java
@@ -0,0 +1,231 @@
+/*
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.dialogflow.v2beta1;
+
+import com.google.api.pathtemplate.PathTemplate;
+import com.google.api.resourcenames.ResourceName;
+import com.google.common.base.Preconditions;
+import com.google.common.collect.ImmutableMap;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS.
+@Generated("by gapic-generator-java")
+public class ConversationModelName implements ResourceName {
+  private static final PathTemplate PROJECT_LOCATION_CONVERSATION_MODEL =
+      PathTemplate.createWithoutUrlEncoding(
+          "projects/{project}/locations/{location}/conversationModels/{conversation_model}");
+  private volatile Map fieldValuesMap;
+  private final String project;
+  private final String location;
+  private final String conversationModel;
+
+  @Deprecated
+  protected ConversationModelName() {
+    project = null;
+    location = null;
+    conversationModel = null;
+  }
+
+  private ConversationModelName(Builder builder) {
+    project = Preconditions.checkNotNull(builder.getProject());
+    location = Preconditions.checkNotNull(builder.getLocation());
+    conversationModel = Preconditions.checkNotNull(builder.getConversationModel());
+  }
+
+  public String getProject() {
+    return project;
+  }
+
+  public String getLocation() {
+    return location;
+  }
+
+  public String getConversationModel() {
+    return conversationModel;
+  }
+
+  public static Builder newBuilder() {
+    return new Builder();
+  }
+
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  public static ConversationModelName of(
+      String project, String location, String conversationModel) {
+    return newBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setConversationModel(conversationModel)
+        .build();
+  }
+
+  public static String format(String project, String location, String conversationModel) {
+    return newBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setConversationModel(conversationModel)
+        .build()
+        .toString();
+  }
+
+  public static ConversationModelName parse(String formattedString) {
+    if (formattedString.isEmpty()) {
+      return null;
+    }
+    Map matchMap =
+        PROJECT_LOCATION_CONVERSATION_MODEL.validatedMatch(
+            formattedString, "ConversationModelName.parse: formattedString not in valid format");
+    return of(
+        matchMap.get("project"), matchMap.get("location"), matchMap.get("conversation_model"));
+  }
+
+  public static List parseList(List formattedStrings) {
+    List list = new ArrayList<>(formattedStrings.size());
+    for (String formattedString : formattedStrings) {
+      list.add(parse(formattedString));
+    }
+    return list;
+  }
+
+  public static List toStringList(List values) {
+    List list = new ArrayList<>(values.size());
+    for (ConversationModelName value : values) {
+      if (value == null) {
+        list.add("");
+      } else {
+        list.add(value.toString());
+      }
+    }
+    return list;
+  }
+
+  public static boolean isParsableFrom(String formattedString) {
+    return PROJECT_LOCATION_CONVERSATION_MODEL.matches(formattedString);
+  }
+
+  @Override
+  public Map getFieldValuesMap() {
+    if (fieldValuesMap == null) {
+      synchronized (this) {
+        if (fieldValuesMap == null) {
+          ImmutableMap.Builder fieldMapBuilder = ImmutableMap.builder();
+          if (project != null) {
+            fieldMapBuilder.put("project", project);
+          }
+          if (location != null) {
+            fieldMapBuilder.put("location", location);
+          }
+          if (conversationModel != null) {
+            fieldMapBuilder.put("conversation_model", conversationModel);
+          }
+          fieldValuesMap = fieldMapBuilder.build();
+        }
+      }
+    }
+    return fieldValuesMap;
+  }
+
+  public String getFieldValue(String fieldName) {
+    return getFieldValuesMap().get(fieldName);
+  }
+
+  @Override
+  public String toString() {
+    return PROJECT_LOCATION_CONVERSATION_MODEL.instantiate(
+        "project", project, "location", location, "conversation_model", conversationModel);
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (o == this) {
+      return true;
+    }
+    if (o != null || getClass() == o.getClass()) {
+      ConversationModelName that = ((ConversationModelName) o);
+      return Objects.equals(this.project, that.project)
+          && Objects.equals(this.location, that.location)
+          && Objects.equals(this.conversationModel, that.conversationModel);
+    }
+    return false;
+  }
+
+  @Override
+  public int hashCode() {
+    int h = 1;
+    h *= 1000003;
+    h ^= Objects.hashCode(project);
+    h *= 1000003;
+    h ^= Objects.hashCode(location);
+    h *= 1000003;
+    h ^= Objects.hashCode(conversationModel);
+    return h;
+  }
+
+  /**
+   * Builder for projects/{project}/locations/{location}/conversationModels/{conversation_model}.
+   */
+  public static class Builder {
+    private String project;
+    private String location;
+    private String conversationModel;
+
+    protected Builder() {}
+
+    public String getProject() {
+      return project;
+    }
+
+    public String getLocation() {
+      return location;
+    }
+
+    public String getConversationModel() {
+      return conversationModel;
+    }
+
+    public Builder setProject(String project) {
+      this.project = project;
+      return this;
+    }
+
+    public Builder setLocation(String location) {
+      this.location = location;
+      return this;
+    }
+
+    public Builder setConversationModel(String conversationModel) {
+      this.conversationModel = conversationModel;
+      return this;
+    }
+
+    private Builder(ConversationModelName conversationModelName) {
+      project = conversationModelName.project;
+      location = conversationModelName.location;
+      conversationModel = conversationModelName.conversationModel;
+    }
+
+    public ConversationModelName build() {
+      return new ConversationModelName(this);
+    }
+  }
+}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ConversationOrBuilder.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ConversationOrBuilder.java
index 4cc3e62ca..1cd6c08d8 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ConversationOrBuilder.java
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ConversationOrBuilder.java
@@ -168,15 +168,12 @@ public interface ConversationOrBuilder
    * human agent is handling the conversation.
    * If the conversation is created with the conversation profile that has
    * Dialogflow config set, defaults to
-   * [ConversationStage.VIRTUAL_AGENT_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.VIRTUAL_AGENT_STAGE];
-   * Otherwise, defaults to
+   * [ConversationStage.VIRTUAL_AGENT_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.VIRTUAL_AGENT_STAGE]; Otherwise, defaults to
    * [ConversationStage.HUMAN_ASSIST_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.HUMAN_ASSIST_STAGE].
    * If the conversation is created with the conversation profile that has
    * Dialogflow config set but explicitly sets conversation_stage to
-   * [ConversationStage.HUMAN_ASSIST_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.HUMAN_ASSIST_STAGE],
-   * it skips
-   * [ConversationStage.VIRTUAL_AGENT_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.VIRTUAL_AGENT_STAGE]
-   * stage and directly goes to
+   * [ConversationStage.HUMAN_ASSIST_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.HUMAN_ASSIST_STAGE], it skips
+   * [ConversationStage.VIRTUAL_AGENT_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.VIRTUAL_AGENT_STAGE] stage and directly goes to
    * [ConversationStage.HUMAN_ASSIST_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.HUMAN_ASSIST_STAGE].
    * 
    *
@@ -194,15 +191,12 @@ public interface ConversationOrBuilder
    * human agent is handling the conversation.
    * If the conversation is created with the conversation profile that has
    * Dialogflow config set, defaults to
-   * [ConversationStage.VIRTUAL_AGENT_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.VIRTUAL_AGENT_STAGE];
-   * Otherwise, defaults to
+   * [ConversationStage.VIRTUAL_AGENT_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.VIRTUAL_AGENT_STAGE]; Otherwise, defaults to
    * [ConversationStage.HUMAN_ASSIST_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.HUMAN_ASSIST_STAGE].
    * If the conversation is created with the conversation profile that has
    * Dialogflow config set but explicitly sets conversation_stage to
-   * [ConversationStage.HUMAN_ASSIST_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.HUMAN_ASSIST_STAGE],
-   * it skips
-   * [ConversationStage.VIRTUAL_AGENT_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.VIRTUAL_AGENT_STAGE]
-   * stage and directly goes to
+   * [ConversationStage.HUMAN_ASSIST_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.HUMAN_ASSIST_STAGE], it skips
+   * [ConversationStage.VIRTUAL_AGENT_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.VIRTUAL_AGENT_STAGE] stage and directly goes to
    * [ConversationStage.HUMAN_ASSIST_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.HUMAN_ASSIST_STAGE].
    * 
    *
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ConversationProfile.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ConversationProfile.java
index 7c5006a31..9e8a360fd 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ConversationProfile.java
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ConversationProfile.java
@@ -589,6 +589,8 @@ public boolean hasHumanAgentAssistantConfig() {
    *
    * 
    * Configuration for connecting to a live agent.
+   * Currently, this feature is not general available, please contact Google
+   * to get access.
    * 

    *
    * .google.cloud.dialogflow.v2beta1.HumanAgentHandoffConfig human_agent_handoff_config = 5;
@@ -605,6 +607,8 @@ public boolean hasHumanAgentHandoffConfig() {
    *
    * 
    * Configuration for connecting to a live agent.
+   * Currently, this feature is not general available, please contact Google
+   * to get access.
    * 

    *
    * .google.cloud.dialogflow.v2beta1.HumanAgentHandoffConfig human_agent_handoff_config = 5;
@@ -623,6 +627,8 @@ public com.google.cloud.dialogflow.v2beta1.HumanAgentHandoffConfig getHumanAgent
    *
    * 
    * Configuration for connecting to a live agent.
+   * Currently, this feature is not general available, please contact Google
+   * to get access.
    * 

    *
    * .google.cloud.dialogflow.v2beta1.HumanAgentHandoffConfig human_agent_handoff_config = 5;
@@ -2550,6 +2556,8 @@ public Builder clearHumanAgentAssistantConfig() {
      *
      * 
      * Configuration for connecting to a live agent.
+     * Currently, this feature is not general available, please contact Google
+     * to get access.
      * 

      *
      * 
@@ -2566,6 +2574,8 @@ public boolean hasHumanAgentHandoffConfig() {
      *
      * 
      * Configuration for connecting to a live agent.
+     * Currently, this feature is not general available, please contact Google
+     * to get access.
      * 

      *
      * 
@@ -2589,6 +2599,8 @@ public boolean hasHumanAgentHandoffConfig() {
      *
      * 
      * Configuration for connecting to a live agent.
+     * Currently, this feature is not general available, please contact Google
+     * to get access.
      * 

      *
      * 
@@ -2614,6 +2626,8 @@ public Builder setHumanAgentHandoffConfig(
      *
      * 
      * Configuration for connecting to a live agent.
+     * Currently, this feature is not general available, please contact Google
+     * to get access.
      * 

      *
      * 
@@ -2636,6 +2650,8 @@ public Builder setHumanAgentHandoffConfig(
      *
      * 
      * Configuration for connecting to a live agent.
+     * Currently, this feature is not general available, please contact Google
+     * to get access.
      * 

      *
      * 
@@ -2666,6 +2682,8 @@ public Builder mergeHumanAgentHandoffConfig(
      *
      * 
      * Configuration for connecting to a live agent.
+     * Currently, this feature is not general available, please contact Google
+     * to get access.
      * 

      *
      * 
@@ -2688,6 +2706,8 @@ public Builder clearHumanAgentHandoffConfig() {
      *
      * 
      * Configuration for connecting to a live agent.
+     * Currently, this feature is not general available, please contact Google
+     * to get access.
      * 

      *
      * 
@@ -2705,6 +2725,8 @@ public Builder clearHumanAgentHandoffConfig() {
      *
      * 
      * Configuration for connecting to a live agent.
+     * Currently, this feature is not general available, please contact Google
+     * to get access.
      * 

      *
      * 
@@ -2726,6 +2748,8 @@ public Builder clearHumanAgentHandoffConfig() {
      *
      * 
      * Configuration for connecting to a live agent.
+     * Currently, this feature is not general available, please contact Google
+     * to get access.
      * 

      *
      * 
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ConversationProfileOrBuilder.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ConversationProfileOrBuilder.java
index 4b2449e38..931a78acd 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ConversationProfileOrBuilder.java
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ConversationProfileOrBuilder.java
@@ -236,6 +236,8 @@ public interface ConversationProfileOrBuilder
    *
    * 
    * Configuration for connecting to a live agent.
+   * Currently, this feature is not general available, please contact Google
+   * to get access.
    * 

    *
    * .google.cloud.dialogflow.v2beta1.HumanAgentHandoffConfig human_agent_handoff_config = 5;
@@ -249,6 +251,8 @@ public interface ConversationProfileOrBuilder
    *
    * 
    * Configuration for connecting to a live agent.
+   * Currently, this feature is not general available, please contact Google
+   * to get access.
    * 

    *
    * .google.cloud.dialogflow.v2beta1.HumanAgentHandoffConfig human_agent_handoff_config = 5;
@@ -262,6 +266,8 @@ public interface ConversationProfileOrBuilder
    *
    * 
    * Configuration for connecting to a live agent.
+   * Currently, this feature is not general available, please contact Google
+   * to get access.
    * 

    *
    * .google.cloud.dialogflow.v2beta1.HumanAgentHandoffConfig human_agent_handoff_config = 5;
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ConversationProfileProto.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ConversationProfileProto.java
index aa15ab0c0..14fb8b854 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ConversationProfileProto.java
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ConversationProfileProto.java
@@ -171,7 +171,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "ns/{location}/conversationProfiles/{conv"
           + "ersation_profile}\"N\n\024AutomatedAgentConfi"
           + "g\0226\n\005agent\030\001 \001(\tB\'\340A\002\372A!\n\037dialogflow.goo"
-          + "gleapis.com/Agent\"\303\022\n\031HumanAgentAssistan"
+          + "gleapis.com/Agent\"\360\022\n\031HumanAgentAssistan"
           + "tConfig\022P\n\023notification_config\030\002 \001(\01323.g"
           + "oogle.cloud.dialogflow.v2beta1.Notificat"
           + "ionConfig\022r\n\035human_agent_suggestion_conf"
@@ -227,98 +227,106 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "ntextFilterSettings\022\035\n\025drop_handoff_mess"
           + "ages\030\001 \001(\010\022#\n\033drop_virtual_agent_message"
           + "s\030\002 \001(\010\022\031\n\021drop_ivr_messages\030\003 \001(\010B\016\n\014qu"
-          + "ery_source\032-\n\027ConversationModelConfig\022\022\n"
-          + "\005model\030\001 \001(\tB\003\340A\002\032\\\n\025MessageAnalysisConf"
-          + "ig\022 \n\030enable_entity_extraction\030\002 \001(\010\022!\n\031"
-          + "enable_sentiment_analysis\030\003 \001(\010\"\316\003\n\027Huma"
-          + "nAgentHandoffConfig\022g\n\022live_person_confi"
-          + "g\030\001 \001(\0132I.google.cloud.dialogflow.v2beta"
-          + "1.HumanAgentHandoffConfig.LivePersonConf"
-          + "igH\000\022z\n\034salesforce_live_agent_config\030\002 \001"
-          + "(\0132R.google.cloud.dialogflow.v2beta1.Hum"
-          + "anAgentHandoffConfig.SalesforceLiveAgent"
-          + "ConfigH\000\032/\n\020LivePersonConfig\022\033\n\016account_"
-          + "number\030\001 \001(\tB\003\340A\002\032\213\001\n\031SalesforceLiveAgen"
-          + "tConfig\022\034\n\017organization_id\030\001 \001(\tB\003\340A\002\022\032\n"
-          + "\rdeployment_id\030\002 \001(\tB\003\340A\002\022\026\n\tbutton_id\030\003"
-          + " \001(\tB\003\340A\002\022\034\n\017endpoint_domain\030\004 \001(\tB\003\340A\002B"
-          + "\017\n\ragent_service\"\304\001\n\022NotificationConfig\022"
-          + "\r\n\005topic\030\001 \001(\t\022Y\n\016message_format\030\002 \001(\0162A"
-          + ".google.cloud.dialogflow.v2beta1.Notific"
-          + "ationConfig.MessageFormat\"D\n\rMessageForm"
-          + "at\022\036\n\032MESSAGE_FORMAT_UNSPECIFIED\020\000\022\t\n\005PR"
-          + "OTO\020\001\022\010\n\004JSON\020\002\"3\n\rLoggingConfig\022\"\n\032enab"
-          + "le_stackdriver_logging\030\003 \001(\010\"\217\001\n\037ListCon"
-          + "versationProfilesRequest\022E\n\006parent\030\001 \001(\t"
-          + "B5\340A\002\372A/\022-dialogflow.googleapis.com/Conv"
-          + "ersationProfile\022\021\n\tpage_size\030\002 \001(\005\022\022\n\npa"
-          + "ge_token\030\003 \001(\t\"\220\001\n ListConversationProfi"
-          + "lesResponse\022S\n\025conversation_profiles\030\001 \003"
-          + "(\01324.google.cloud.dialogflow.v2beta1.Con"
-          + "versationProfile\022\027\n\017next_page_token\030\002 \001("
-          + "\t\"d\n\035GetConversationProfileRequest\022C\n\004na"
-          + "me\030\001 \001(\tB5\340A\002\372A/\n-dialogflow.googleapis."
-          + "com/ConversationProfile\"\302\001\n CreateConver"
-          + "sationProfileRequest\022E\n\006parent\030\001 \001(\tB5\340A"
-          + "\002\372A/\022-dialogflow.googleapis.com/Conversa"
-          + "tionProfile\022W\n\024conversation_profile\030\002 \001("
-          + "\01324.google.cloud.dialogflow.v2beta1.Conv"
-          + "ersationProfileB\003\340A\002\"\261\001\n UpdateConversat"
-          + "ionProfileRequest\022W\n\024conversation_profil"
-          + "e\030\001 \001(\01324.google.cloud.dialogflow.v2beta"
-          + "1.ConversationProfileB\003\340A\002\0224\n\013update_mas"
-          + "k\030\002 \001(\0132\032.google.protobuf.FieldMaskB\003\340A\002"
-          + "\"g\n DeleteConversationProfileRequest\022C\n\004"
-          + "name\030\001 \001(\tB5\340A\002\372A/\n-dialogflow.googleapi"
-          + "s.com/ConversationProfile2\267\r\n\024Conversati"
-          + "onProfiles\022\245\002\n\030ListConversationProfiles\022"
-          + "@.google.cloud.dialogflow.v2beta1.ListCo"
-          + "nversationProfilesRequest\032A.google.cloud"
-          + ".dialogflow.v2beta1.ListConversationProf"
-          + "ilesResponse\"\203\001\202\323\344\223\002t\0221/v2beta1/{parent="
-          + "projects/*}/conversationProfilesZ?\022=/v2b"
-          + "eta1/{parent=projects/*/locations/*}/con"
-          + "versationProfiles\332A\006parent\022\222\002\n\026GetConver"
-          + "sationProfile\022>.google.cloud.dialogflow."
-          + "v2beta1.GetConversationProfileRequest\0324."
-          + "google.cloud.dialogflow.v2beta1.Conversa"
-          + "tionProfile\"\201\001\202\323\344\223\002t\0221/v2beta1/{name=pro"
-          + "jects/*/conversationProfiles/*}Z?\022=/v2be"
-          + "ta1/{name=projects/*/locations/*/convers"
-          + "ationProfiles/*}\332A\004name\022\334\002\n\031CreateConver"
-          + "sationProfile\022A.google.cloud.dialogflow."
-          + "v2beta1.CreateConversationProfileRequest"
-          + "\0324.google.cloud.dialogflow.v2beta1.Conve"
-          + "rsationProfile\"\305\001\202\323\344\223\002\240\001\"1/v2beta1/{pare"
-          + "nt=projects/*}/conversationProfiles:\024con"
-          + "versation_profileZU\"=/v2beta1/{parent=pr"
-          + "ojects/*/locations/*}/conversationProfil"
-          + "es:\024conversation_profile\332A\033parent,conver"
-          + "sation_profile\022\213\003\n\031UpdateConversationPro"
-          + "file\022A.google.cloud.dialogflow.v2beta1.U"
-          + "pdateConversationProfileRequest\0324.google"
-          + ".cloud.dialogflow.v2beta1.ConversationPr"
-          + "ofile\"\364\001\202\323\344\223\002\312\0012F/v2beta1/{conversation_"
-          + "profile.name=projects/*/conversationProf"
-          + "iles/*}:\024conversation_profileZj2R/v2beta"
-          + "1/{conversation_profile.name=projects/*/"
-          + "locations/*/conversationProfiles/*}:\024con"
-          + "versation_profile\332A conversation_profile"
-          + ",update_mask\022\372\001\n\031DeleteConversationProfi"
-          + "le\022A.google.cloud.dialogflow.v2beta1.Del"
-          + "eteConversationProfileRequest\032\026.google.p"
-          + "rotobuf.Empty\"\201\001\202\323\344\223\002t*1/v2beta1/{name=p"
-          + "rojects/*/conversationProfiles/*}Z?*=/v2"
-          + "beta1/{name=projects/*/locations/*/conve"
-          + "rsationProfiles/*}\332A\004name\032x\312A\031dialogflow"
-          + ".googleapis.com\322AYhttps://www.googleapis"
-          + ".com/auth/cloud-platform,https://www.goo"
-          + "gleapis.com/auth/dialogflowB\266\001\n#com.goog"
-          + "le.cloud.dialogflow.v2beta1B\030Conversatio"
-          + "nProfileProtoP\001ZIgoogle.golang.org/genpr"
-          + "oto/googleapis/cloud/dialogflow/v2beta1;"
-          + "dialogflow\370\001\001\242\002\002DF\252\002\037Google.Cloud.Dialog"
-          + "flow.V2beta1b\006proto3"
+          + "ery_source\032Z\n\027ConversationModelConfig\022?\n"
+          + "\005model\030\001 \001(\tB0\372A-\n+dialogflow.googleapis"
+          + ".com/ConversationModel\032\\\n\025MessageAnalysi"
+          + "sConfig\022 \n\030enable_entity_extraction\030\002 \001("
+          + "\010\022!\n\031enable_sentiment_analysis\030\003 \001(\010\"\316\003\n"
+          + "\027HumanAgentHandoffConfig\022g\n\022live_person_"
+          + "config\030\001 \001(\0132I.google.cloud.dialogflow.v"
+          + "2beta1.HumanAgentHandoffConfig.LivePerso"
+          + "nConfigH\000\022z\n\034salesforce_live_agent_confi"
+          + "g\030\002 \001(\0132R.google.cloud.dialogflow.v2beta"
+          + "1.HumanAgentHandoffConfig.SalesforceLive"
+          + "AgentConfigH\000\032/\n\020LivePersonConfig\022\033\n\016acc"
+          + "ount_number\030\001 \001(\tB\003\340A\002\032\213\001\n\031SalesforceLiv"
+          + "eAgentConfig\022\034\n\017organization_id\030\001 \001(\tB\003\340"
+          + "A\002\022\032\n\rdeployment_id\030\002 \001(\tB\003\340A\002\022\026\n\tbutton"
+          + "_id\030\003 \001(\tB\003\340A\002\022\034\n\017endpoint_domain\030\004 \001(\tB"
+          + "\003\340A\002B\017\n\ragent_service\"\304\001\n\022NotificationCo"
+          + "nfig\022\r\n\005topic\030\001 \001(\t\022Y\n\016message_format\030\002 "
+          + "\001(\0162A.google.cloud.dialogflow.v2beta1.No"
+          + "tificationConfig.MessageFormat\"D\n\rMessag"
+          + "eFormat\022\036\n\032MESSAGE_FORMAT_UNSPECIFIED\020\000\022"
+          + "\t\n\005PROTO\020\001\022\010\n\004JSON\020\002\"3\n\rLoggingConfig\022\"\n"
+          + "\032enable_stackdriver_logging\030\003 \001(\010\"\217\001\n\037Li"
+          + "stConversationProfilesRequest\022E\n\006parent\030"
+          + "\001 \001(\tB5\340A\002\372A/\022-dialogflow.googleapis.com"
+          + "/ConversationProfile\022\021\n\tpage_size\030\002 \001(\005\022"
+          + "\022\n\npage_token\030\003 \001(\t\"\220\001\n ListConversation"
+          + "ProfilesResponse\022S\n\025conversation_profile"
+          + "s\030\001 \003(\01324.google.cloud.dialogflow.v2beta"
+          + "1.ConversationProfile\022\027\n\017next_page_token"
+          + "\030\002 \001(\t\"d\n\035GetConversationProfileRequest\022"
+          + "C\n\004name\030\001 \001(\tB5\340A\002\372A/\n-dialogflow.google"
+          + "apis.com/ConversationProfile\"\302\001\n CreateC"
+          + "onversationProfileRequest\022E\n\006parent\030\001 \001("
+          + "\tB5\340A\002\372A/\022-dialogflow.googleapis.com/Con"
+          + "versationProfile\022W\n\024conversation_profile"
+          + "\030\002 \001(\01324.google.cloud.dialogflow.v2beta1"
+          + ".ConversationProfileB\003\340A\002\"\261\001\n UpdateConv"
+          + "ersationProfileRequest\022W\n\024conversation_p"
+          + "rofile\030\001 \001(\01324.google.cloud.dialogflow.v"
+          + "2beta1.ConversationProfileB\003\340A\002\0224\n\013updat"
+          + "e_mask\030\002 \001(\0132\032.google.protobuf.FieldMask"
+          + "B\003\340A\002\"g\n DeleteConversationProfileReques"
+          + "t\022C\n\004name\030\001 \001(\tB5\340A\002\372A/\n-dialogflow.goog"
+          + "leapis.com/ConversationProfile2\267\r\n\024Conve"
+          + "rsationProfiles\022\245\002\n\030ListConversationProf"
+          + "iles\022@.google.cloud.dialogflow.v2beta1.L"
+          + "istConversationProfilesRequest\032A.google."
+          + "cloud.dialogflow.v2beta1.ListConversatio"
+          + "nProfilesResponse\"\203\001\202\323\344\223\002t\0221/v2beta1/{pa"
+          + "rent=projects/*}/conversationProfilesZ?\022"
+          + "=/v2beta1/{parent=projects/*/locations/*"
+          + "}/conversationProfiles\332A\006parent\022\222\002\n\026GetC"
+          + "onversationProfile\022>.google.cloud.dialog"
+          + "flow.v2beta1.GetConversationProfileReque"
+          + "st\0324.google.cloud.dialogflow.v2beta1.Con"
+          + "versationProfile\"\201\001\202\323\344\223\002t\0221/v2beta1/{nam"
+          + "e=projects/*/conversationProfiles/*}Z?\022="
+          + "/v2beta1/{name=projects/*/locations/*/co"
+          + "nversationProfiles/*}\332A\004name\022\334\002\n\031CreateC"
+          + "onversationProfile\022A.google.cloud.dialog"
+          + "flow.v2beta1.CreateConversationProfileRe"
+          + "quest\0324.google.cloud.dialogflow.v2beta1."
+          + "ConversationProfile\"\305\001\202\323\344\223\002\240\001\"1/v2beta1/"
+          + "{parent=projects/*}/conversationProfiles"
+          + ":\024conversation_profileZU\"=/v2beta1/{pare"
+          + "nt=projects/*/locations/*}/conversationP"
+          + "rofiles:\024conversation_profile\332A\033parent,c"
+          + "onversation_profile\022\213\003\n\031UpdateConversati"
+          + "onProfile\022A.google.cloud.dialogflow.v2be"
+          + "ta1.UpdateConversationProfileRequest\0324.g"
+          + "oogle.cloud.dialogflow.v2beta1.Conversat"
+          + "ionProfile\"\364\001\202\323\344\223\002\312\0012F/v2beta1/{conversa"
+          + "tion_profile.name=projects/*/conversatio"
+          + "nProfiles/*}:\024conversation_profileZj2R/v"
+          + "2beta1/{conversation_profile.name=projec"
+          + "ts/*/locations/*/conversationProfiles/*}"
+          + ":\024conversation_profile\332A conversation_pr"
+          + "ofile,update_mask\022\372\001\n\031DeleteConversation"
+          + "Profile\022A.google.cloud.dialogflow.v2beta"
+          + "1.DeleteConversationProfileRequest\032\026.goo"
+          + "gle.protobuf.Empty\"\201\001\202\323\344\223\002t*1/v2beta1/{n"
+          + "ame=projects/*/conversationProfiles/*}Z?"
+          + "*=/v2beta1/{name=projects/*/locations/*/"
+          + "conversationProfiles/*}\332A\004name\032x\312A\031dialo"
+          + "gflow.googleapis.com\322AYhttps://www.googl"
+          + "eapis.com/auth/cloud-platform,https://ww"
+          + "w.googleapis.com/auth/dialogflowB\266\003\n#com"
+          + ".google.cloud.dialogflow.v2beta1B\030Conver"
+          + "sationProfileProtoP\001ZIgoogle.golang.org/"
+          + "genproto/googleapis/cloud/dialogflow/v2b"
+          + "eta1;dialogflow\370\001\001\242\002\002DF\252\002\037Google.Cloud.D"
+          + "ialogflow.V2beta1\352A|\n,dialogflow.googlea"
+          + "pis.com/CXSecuritySettings\022Lprojects/{pr"
+          + "oject}/locations/{location}/securitySett"
+          + "ings/{security_settings}\352A~\n+dialogflow."
+          + "googleapis.com/ConversationModel\022Oprojec"
+          + "ts/{project}/locations/{location}/conver"
+          + "sationModels/{conversation_model}b\006proto"
+          + "3"
     };
     descriptor =
         com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
@@ -584,6 +592,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
     registry.add(com.google.api.ClientProto.methodSignature);
     registry.add(com.google.api.ClientProto.oauthScopes);
     registry.add(com.google.api.ResourceProto.resource);
+    registry.add(com.google.api.ResourceProto.resourceDefinition);
     registry.add(com.google.api.ResourceProto.resourceReference);
     com.google.protobuf.Descriptors.FileDescriptor.internalUpdateFileDescriptor(
         descriptor, registry);
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateConversationRequest.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateConversationRequest.java
index c090d0ae4..3ac2cdaff 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateConversationRequest.java
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateConversationRequest.java
@@ -22,8 +22,7 @@
  *
  *
  * 
- * The request message for
- * [Conversations.CreateConversation][google.cloud.dialogflow.v2beta1.Conversations.CreateConversation].
+ * The request message for [Conversations.CreateConversation][google.cloud.dialogflow.v2beta1.Conversations.CreateConversation].
  * 

  *
  * Protobuf type {@code google.cloud.dialogflow.v2beta1.CreateConversationRequest}
@@ -251,8 +250,8 @@ public com.google.cloud.dialogflow.v2beta1.ConversationOrBuilder getConversation
    *
    *
    * 
-   * Optional. Identifier of the conversation. Generally it's auto generated by
-   * Google. Only set it if you cannot wait for the response to return a
+   * Optional. Identifier of the conversation. Generally it's auto generated by Google.
+   * Only set it if you cannot wait for the response to return a
    * auto-generated one to you.
    * The conversation ID must be compliant with the regression fomula
    * "[a-zA-Z][a-zA-Z0-9_-]*" with the characters length in range of [3,64].
@@ -282,8 +281,8 @@ public java.lang.String getConversationId() {
    *
    *
    * 
-   * Optional. Identifier of the conversation. Generally it's auto generated by
-   * Google. Only set it if you cannot wait for the response to return a
+   * Optional. Identifier of the conversation. Generally it's auto generated by Google.
+   * Only set it if you cannot wait for the response to return a
    * auto-generated one to you.
    * The conversation ID must be compliant with the regression fomula
    * "[a-zA-Z][a-zA-Z0-9_-]*" with the characters length in range of [3,64].
@@ -497,8 +496,7 @@ protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.Build
    *
    *
    * 
-   * The request message for
-   * [Conversations.CreateConversation][google.cloud.dialogflow.v2beta1.Conversations.CreateConversation].
+   * The request message for [Conversations.CreateConversation][google.cloud.dialogflow.v2beta1.Conversations.CreateConversation].
    * 

    *
    * Protobuf type {@code google.cloud.dialogflow.v2beta1.CreateConversationRequest}
@@ -1007,8 +1005,8 @@ public com.google.cloud.dialogflow.v2beta1.ConversationOrBuilder getConversation
      *
      *
      * 
-     * Optional. Identifier of the conversation. Generally it's auto generated by
-     * Google. Only set it if you cannot wait for the response to return a
+     * Optional. Identifier of the conversation. Generally it's auto generated by Google.
+     * Only set it if you cannot wait for the response to return a
      * auto-generated one to you.
      * The conversation ID must be compliant with the regression fomula
      * "[a-zA-Z][a-zA-Z0-9_-]*" with the characters length in range of [3,64].
@@ -1037,8 +1035,8 @@ public java.lang.String getConversationId() {
      *
      *
      * 
-     * Optional. Identifier of the conversation. Generally it's auto generated by
-     * Google. Only set it if you cannot wait for the response to return a
+     * Optional. Identifier of the conversation. Generally it's auto generated by Google.
+     * Only set it if you cannot wait for the response to return a
      * auto-generated one to you.
      * The conversation ID must be compliant with the regression fomula
      * "[a-zA-Z][a-zA-Z0-9_-]*" with the characters length in range of [3,64].
@@ -1067,8 +1065,8 @@ public com.google.protobuf.ByteString getConversationIdBytes() {
      *
      *
      * 
-     * Optional. Identifier of the conversation. Generally it's auto generated by
-     * Google. Only set it if you cannot wait for the response to return a
+     * Optional. Identifier of the conversation. Generally it's auto generated by Google.
+     * Only set it if you cannot wait for the response to return a
      * auto-generated one to you.
      * The conversation ID must be compliant with the regression fomula
      * "[a-zA-Z][a-zA-Z0-9_-]*" with the characters length in range of [3,64].
@@ -1096,8 +1094,8 @@ public Builder setConversationId(java.lang.String value) {
      *
      *
      * 
-     * Optional. Identifier of the conversation. Generally it's auto generated by
-     * Google. Only set it if you cannot wait for the response to return a
+     * Optional. Identifier of the conversation. Generally it's auto generated by Google.
+     * Only set it if you cannot wait for the response to return a
      * auto-generated one to you.
      * The conversation ID must be compliant with the regression fomula
      * "[a-zA-Z][a-zA-Z0-9_-]*" with the characters length in range of [3,64].
@@ -1121,8 +1119,8 @@ public Builder clearConversationId() {
      *
      *
      * 
-     * Optional. Identifier of the conversation. Generally it's auto generated by
-     * Google. Only set it if you cannot wait for the response to return a
+     * Optional. Identifier of the conversation. Generally it's auto generated by Google.
+     * Only set it if you cannot wait for the response to return a
      * auto-generated one to you.
      * The conversation ID must be compliant with the regression fomula
      * "[a-zA-Z][a-zA-Z0-9_-]*" with the characters length in range of [3,64].
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateConversationRequestOrBuilder.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateConversationRequestOrBuilder.java
index a46d7646d..8a5f6e388 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateConversationRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateConversationRequestOrBuilder.java
@@ -99,8 +99,8 @@ public interface CreateConversationRequestOrBuilder
    *
    *
    * 
-   * Optional. Identifier of the conversation. Generally it's auto generated by
-   * Google. Only set it if you cannot wait for the response to return a
+   * Optional. Identifier of the conversation. Generally it's auto generated by Google.
+   * Only set it if you cannot wait for the response to return a
    * auto-generated one to you.
    * The conversation ID must be compliant with the regression fomula
    * "[a-zA-Z][a-zA-Z0-9_-]*" with the characters length in range of [3,64].
@@ -119,8 +119,8 @@ public interface CreateConversationRequestOrBuilder
    *
    *
    * 
-   * Optional. Identifier of the conversation. Generally it's auto generated by
-   * Google. Only set it if you cannot wait for the response to return a
+   * Optional. Identifier of the conversation. Generally it's auto generated by Google.
+   * Only set it if you cannot wait for the response to return a
    * auto-generated one to you.
    * The conversation ID must be compliant with the regression fomula
    * "[a-zA-Z][a-zA-Z0-9_-]*" with the characters length in range of [3,64].
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateEnvironmentRequest.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateEnvironmentRequest.java
new file mode 100644
index 000000000..d83d30180
--- /dev/null
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateEnvironmentRequest.java
@@ -0,0 +1,1156 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/v2beta1/environment.proto
+
+package com.google.cloud.dialogflow.v2beta1;
+
+/**
+ *
+ *
+ * 
+ * The request message for [Environments.CreateEnvironment][google.cloud.dialogflow.v2beta1.Environments.CreateEnvironment].
+ * 

+ *
+ * Protobuf type {@code google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest}
+ */
+public final class CreateEnvironmentRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest)
+    CreateEnvironmentRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use CreateEnvironmentRequest.newBuilder() to construct.
+  private CreateEnvironmentRequest(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+    super(builder);
+  }
+
+  private CreateEnvironmentRequest() {
+    parent_ = "";
+    environmentId_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new CreateEnvironmentRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private CreateEnvironmentRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              parent_ = s;
+              break;
+            }
+          case 18:
+            {
+              com.google.cloud.dialogflow.v2beta1.Environment.Builder subBuilder = null;
+              if (environment_ != null) {
+                subBuilder = environment_.toBuilder();
+              }
+              environment_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.v2beta1.Environment.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(environment_);
+                environment_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 26:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              environmentId_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.v2beta1.EnvironmentProto
+        .internal_static_google_cloud_dialogflow_v2beta1_CreateEnvironmentRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.v2beta1.EnvironmentProto
+        .internal_static_google_cloud_dialogflow_v2beta1_CreateEnvironmentRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest.class,
+            com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest.Builder.class);
+  }
+
+  public static final int PARENT_FIELD_NUMBER = 1;
+  private volatile java.lang.Object parent_;
+  /**
+   *
+   *
+   * 
+   * Required. The agent to create an environment for.
+   * Supported formats:
+   * - `projects/<Project Number / ID>/agent`
+   * - `projects/<Project Number / ID>/locations/<Location ID>/agent`
+   * 

+   *
+   * 
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
+   *
+   * @return The parent.
+   */
+  @java.lang.Override
+  public java.lang.String getParent() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      parent_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * 
+   * Required. The agent to create an environment for.
+   * Supported formats:
+   * - `projects/<Project Number / ID>/agent`
+   * - `projects/<Project Number / ID>/locations/<Location ID>/agent`
+   * 

+   *
+   * 
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
+   *
+   * @return The bytes for parent.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getParentBytes() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      parent_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int ENVIRONMENT_FIELD_NUMBER = 2;
+  private com.google.cloud.dialogflow.v2beta1.Environment environment_;
+  /**
+   *
+   *
+   * 
+   * Required. The environment to create.
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.Environment environment = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   *
+   * @return Whether the environment field is set.
+   */
+  @java.lang.Override
+  public boolean hasEnvironment() {
+    return environment_ != null;
+  }
+  /**
+   *
+   *
+   * 
+   * Required. The environment to create.
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.Environment environment = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   *
+   * @return The environment.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.v2beta1.Environment getEnvironment() {
+    return environment_ == null
+        ? com.google.cloud.dialogflow.v2beta1.Environment.getDefaultInstance()
+        : environment_;
+  }
+  /**
+   *
+   *
+   * 
+   * Required. The environment to create.
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.Environment environment = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.v2beta1.EnvironmentOrBuilder getEnvironmentOrBuilder() {
+    return getEnvironment();
+  }
+
+  public static final int ENVIRONMENT_ID_FIELD_NUMBER = 3;
+  private volatile java.lang.Object environmentId_;
+  /**
+   *
+   *
+   * 
+   * Required. The unique id of the new environment.
+   * 

+   *
+   * string environment_id = 3 [(.google.api.field_behavior) = REQUIRED];
+   *
+   * @return The environmentId.
+   */
+  @java.lang.Override
+  public java.lang.String getEnvironmentId() {
+    java.lang.Object ref = environmentId_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      environmentId_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * 
+   * Required. The unique id of the new environment.
+   * 

+   *
+   * string environment_id = 3 [(.google.api.field_behavior) = REQUIRED];
+   *
+   * @return The bytes for environmentId.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getEnvironmentIdBytes() {
+    java.lang.Object ref = environmentId_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      environmentId_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getParentBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, parent_);
+    }
+    if (environment_ != null) {
+      output.writeMessage(2, getEnvironment());
+    }
+    if (!getEnvironmentIdBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 3, environmentId_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getParentBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, parent_);
+    }
+    if (environment_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getEnvironment());
+    }
+    if (!getEnvironmentIdBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, environmentId_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest other =
+        (com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest) obj;
+
+    if (!getParent().equals(other.getParent())) return false;
+    if (hasEnvironment() != other.hasEnvironment()) return false;
+    if (hasEnvironment()) {
+      if (!getEnvironment().equals(other.getEnvironment())) return false;
+    }
+    if (!getEnvironmentId().equals(other.getEnvironmentId())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + PARENT_FIELD_NUMBER;
+    hash = (53 * hash) + getParent().hashCode();
+    if (hasEnvironment()) {
+      hash = (37 * hash) + ENVIRONMENT_FIELD_NUMBER;
+      hash = (53 * hash) + getEnvironment().hashCode();
+    }
+    hash = (37 * hash) + ENVIRONMENT_ID_FIELD_NUMBER;
+    hash = (53 * hash) + getEnvironmentId().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * 
+   * The request message for [Environments.CreateEnvironment][google.cloud.dialogflow.v2beta1.Environments.CreateEnvironment].
+   * 

+   *
+   * Protobuf type {@code google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest)
+      com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.v2beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_v2beta1_CreateEnvironmentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.v2beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_v2beta1_CreateEnvironmentRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest.class,
+              com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      parent_ = "";
+
+      if (environmentBuilder_ == null) {
+        environment_ = null;
+      } else {
+        environment_ = null;
+        environmentBuilder_ = null;
+      }
+      environmentId_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.v2beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_v2beta1_CreateEnvironmentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest
+        getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest build() {
+      com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest buildPartial() {
+      com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest result =
+          new com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest(this);
+      result.parent_ = parent_;
+      if (environmentBuilder_ == null) {
+        result.environment_ = environment_;
+      } else {
+        result.environment_ = environmentBuilder_.build();
+      }
+      result.environmentId_ = environmentId_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest other) {
+      if (other
+          == com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest.getDefaultInstance())
+        return this;
+      if (!other.getParent().isEmpty()) {
+        parent_ = other.parent_;
+        onChanged();
+      }
+      if (other.hasEnvironment()) {
+        mergeEnvironment(other.getEnvironment());
+      }
+      if (!other.getEnvironmentId().isEmpty()) {
+        environmentId_ = other.environmentId_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object parent_ = "";
+    /**
+     *
+     *
+     * 
+     * Required. The agent to create an environment for.
+     * Supported formats:
+     * - `projects/<Project Number / ID>/agent`
+     * - `projects/<Project Number / ID>/locations/<Location ID>/agent`
+     * 

+     *
+     * 
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @return The parent.
+     */
+    public java.lang.String getParent() {
+      java.lang.Object ref = parent_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        parent_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The agent to create an environment for.
+     * Supported formats:
+     * - `projects/<Project Number / ID>/agent`
+     * - `projects/<Project Number / ID>/locations/<Location ID>/agent`
+     * 

+     *
+     * 
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @return The bytes for parent.
+     */
+    public com.google.protobuf.ByteString getParentBytes() {
+      java.lang.Object ref = parent_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        parent_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The agent to create an environment for.
+     * Supported formats:
+     * - `projects/<Project Number / ID>/agent`
+     * - `projects/<Project Number / ID>/locations/<Location ID>/agent`
+     * 

+     *
+     * 
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @param value The parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParent(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The agent to create an environment for.
+     * Supported formats:
+     * - `projects/<Project Number / ID>/agent`
+     * - `projects/<Project Number / ID>/locations/<Location ID>/agent`
+     * 

+     *
+     * 
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearParent() {
+
+      parent_ = getDefaultInstance().getParent();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The agent to create an environment for.
+     * Supported formats:
+     * - `projects/<Project Number / ID>/agent`
+     * - `projects/<Project Number / ID>/locations/<Location ID>/agent`
+     * 

+     *
+     * 
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @param value The bytes for parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParentBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+
+    private com.google.cloud.dialogflow.v2beta1.Environment environment_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.v2beta1.Environment,
+            com.google.cloud.dialogflow.v2beta1.Environment.Builder,
+            com.google.cloud.dialogflow.v2beta1.EnvironmentOrBuilder>
+        environmentBuilder_;
+    /**
+     *
+     *
+     * 
+     * Required. The environment to create.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Environment environment = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     *
+     * @return Whether the environment field is set.
+     */
+    public boolean hasEnvironment() {
+      return environmentBuilder_ != null || environment_ != null;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The environment to create.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Environment environment = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     *
+     * @return The environment.
+     */
+    public com.google.cloud.dialogflow.v2beta1.Environment getEnvironment() {
+      if (environmentBuilder_ == null) {
+        return environment_ == null
+            ? com.google.cloud.dialogflow.v2beta1.Environment.getDefaultInstance()
+            : environment_;
+      } else {
+        return environmentBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The environment to create.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Environment environment = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder setEnvironment(com.google.cloud.dialogflow.v2beta1.Environment value) {
+      if (environmentBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        environment_ = value;
+        onChanged();
+      } else {
+        environmentBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The environment to create.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Environment environment = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder setEnvironment(
+        com.google.cloud.dialogflow.v2beta1.Environment.Builder builderForValue) {
+      if (environmentBuilder_ == null) {
+        environment_ = builderForValue.build();
+        onChanged();
+      } else {
+        environmentBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The environment to create.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Environment environment = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder mergeEnvironment(com.google.cloud.dialogflow.v2beta1.Environment value) {
+      if (environmentBuilder_ == null) {
+        if (environment_ != null) {
+          environment_ =
+              com.google.cloud.dialogflow.v2beta1.Environment.newBuilder(environment_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          environment_ = value;
+        }
+        onChanged();
+      } else {
+        environmentBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The environment to create.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Environment environment = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder clearEnvironment() {
+      if (environmentBuilder_ == null) {
+        environment_ = null;
+        onChanged();
+      } else {
+        environment_ = null;
+        environmentBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The environment to create.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Environment environment = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public com.google.cloud.dialogflow.v2beta1.Environment.Builder getEnvironmentBuilder() {
+
+      onChanged();
+      return getEnvironmentFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The environment to create.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Environment environment = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public com.google.cloud.dialogflow.v2beta1.EnvironmentOrBuilder getEnvironmentOrBuilder() {
+      if (environmentBuilder_ != null) {
+        return environmentBuilder_.getMessageOrBuilder();
+      } else {
+        return environment_ == null
+            ? com.google.cloud.dialogflow.v2beta1.Environment.getDefaultInstance()
+            : environment_;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The environment to create.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Environment environment = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.v2beta1.Environment,
+            com.google.cloud.dialogflow.v2beta1.Environment.Builder,
+            com.google.cloud.dialogflow.v2beta1.EnvironmentOrBuilder>
+        getEnvironmentFieldBuilder() {
+      if (environmentBuilder_ == null) {
+        environmentBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.v2beta1.Environment,
+                com.google.cloud.dialogflow.v2beta1.Environment.Builder,
+                com.google.cloud.dialogflow.v2beta1.EnvironmentOrBuilder>(
+                getEnvironment(), getParentForChildren(), isClean());
+        environment_ = null;
+      }
+      return environmentBuilder_;
+    }
+
+    private java.lang.Object environmentId_ = "";
+    /**
+     *
+     *
+     * 
+     * Required. The unique id of the new environment.
+     * 

+     *
+     * string environment_id = 3 [(.google.api.field_behavior) = REQUIRED];
+     *
+     * @return The environmentId.
+     */
+    public java.lang.String getEnvironmentId() {
+      java.lang.Object ref = environmentId_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        environmentId_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The unique id of the new environment.
+     * 

+     *
+     * string environment_id = 3 [(.google.api.field_behavior) = REQUIRED];
+     *
+     * @return The bytes for environmentId.
+     */
+    public com.google.protobuf.ByteString getEnvironmentIdBytes() {
+      java.lang.Object ref = environmentId_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        environmentId_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The unique id of the new environment.
+     * 

+     *
+     * string environment_id = 3 [(.google.api.field_behavior) = REQUIRED];
+     *
+     * @param value The environmentId to set.
+     * @return This builder for chaining.
+     */
+    public Builder setEnvironmentId(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      environmentId_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The unique id of the new environment.
+     * 

+     *
+     * string environment_id = 3 [(.google.api.field_behavior) = REQUIRED];
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearEnvironmentId() {
+
+      environmentId_ = getDefaultInstance().getEnvironmentId();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The unique id of the new environment.
+     * 

+     *
+     * string environment_id = 3 [(.google.api.field_behavior) = REQUIRED];
+     *
+     * @param value The bytes for environmentId to set.
+     * @return This builder for chaining.
+     */
+    public Builder setEnvironmentIdBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      environmentId_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest)
+  private static final com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest
+      DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest();
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser PARSER =
+      new com.google.protobuf.AbstractParser() {
+        @java.lang.Override
+        public CreateEnvironmentRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new CreateEnvironmentRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateEnvironmentRequestOrBuilder.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateEnvironmentRequestOrBuilder.java
new file mode 100644
index 000000000..30978d378
--- /dev/null
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateEnvironmentRequestOrBuilder.java
@@ -0,0 +1,126 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/v2beta1/environment.proto
+
+package com.google.cloud.dialogflow.v2beta1;
+
+public interface CreateEnvironmentRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.v2beta1.CreateEnvironmentRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * 
+   * Required. The agent to create an environment for.
+   * Supported formats:
+   * - `projects/<Project Number / ID>/agent`
+   * - `projects/<Project Number / ID>/locations/<Location ID>/agent`
+   * 

+   *
+   * 
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
+   *
+   * @return The parent.
+   */
+  java.lang.String getParent();
+  /**
+   *
+   *
+   * 
+   * Required. The agent to create an environment for.
+   * Supported formats:
+   * - `projects/<Project Number / ID>/agent`
+   * - `projects/<Project Number / ID>/locations/<Location ID>/agent`
+   * 

+   *
+   * 
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
+   *
+   * @return The bytes for parent.
+   */
+  com.google.protobuf.ByteString getParentBytes();
+
+  /**
+   *
+   *
+   * 
+   * Required. The environment to create.
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.Environment environment = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   *
+   * @return Whether the environment field is set.
+   */
+  boolean hasEnvironment();
+  /**
+   *
+   *
+   * 
+   * Required. The environment to create.
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.Environment environment = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   *
+   * @return The environment.
+   */
+  com.google.cloud.dialogflow.v2beta1.Environment getEnvironment();
+  /**
+   *
+   *
+   * 
+   * Required. The environment to create.
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.Environment environment = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   */
+  com.google.cloud.dialogflow.v2beta1.EnvironmentOrBuilder getEnvironmentOrBuilder();
+
+  /**
+   *
+   *
+   * 
+   * Required. The unique id of the new environment.
+   * 

+   *
+   * string environment_id = 3 [(.google.api.field_behavior) = REQUIRED];
+   *
+   * @return The environmentId.
+   */
+  java.lang.String getEnvironmentId();
+  /**
+   *
+   *
+   * 
+   * Required. The unique id of the new environment.
+   * 

+   *
+   * string environment_id = 3 [(.google.api.field_behavior) = REQUIRED];
+   *
+   * @return The bytes for environmentId.
+   */
+  com.google.protobuf.ByteString getEnvironmentIdBytes();
+}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateMessageRequest.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateMessageRequest.java
index f50e56afa..ab5fc8be4 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateMessageRequest.java
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateMessageRequest.java
@@ -192,8 +192,7 @@ public com.google.protobuf.ByteString getParentBytes() {
    *
    * 
    * Required. The message to create.
-   * [Message.participant][google.cloud.dialogflow.v2beta1.Message.participant]
-   * is required.
+   * [Message.participant][google.cloud.dialogflow.v2beta1.Message.participant] is required.
    * 

    *
    * 
@@ -211,8 +210,7 @@ public boolean hasMessage() {
    *
    * 
    * Required. The message to create.
-   * [Message.participant][google.cloud.dialogflow.v2beta1.Message.participant]
-   * is required.
+   * [Message.participant][google.cloud.dialogflow.v2beta1.Message.participant] is required.
    * 

    *
    * 
@@ -232,8 +230,7 @@ public com.google.cloud.dialogflow.v2beta1.Message getMessage() {
    *
    * 
    * Required. The message to create.
-   * [Message.participant][google.cloud.dialogflow.v2beta1.Message.participant]
-   * is required.
+   * [Message.participant][google.cloud.dialogflow.v2beta1.Message.participant] is required.
    * 

    *
    * 
@@ -730,8 +727,7 @@ public Builder setParentBytes(com.google.protobuf.ByteString value) {
      *
      * 
      * Required. The message to create.
-     * [Message.participant][google.cloud.dialogflow.v2beta1.Message.participant]
-     * is required.
+     * [Message.participant][google.cloud.dialogflow.v2beta1.Message.participant] is required.
      * 

      *
      * 
@@ -748,8 +744,7 @@ public boolean hasMessage() {
      *
      * 
      * Required. The message to create.
-     * [Message.participant][google.cloud.dialogflow.v2beta1.Message.participant]
-     * is required.
+     * [Message.participant][google.cloud.dialogflow.v2beta1.Message.participant] is required.
      * 

      *
      * 
@@ -772,8 +767,7 @@ public com.google.cloud.dialogflow.v2beta1.Message getMessage() {
      *
      * 
      * Required. The message to create.
-     * [Message.participant][google.cloud.dialogflow.v2beta1.Message.participant]
-     * is required.
+     * [Message.participant][google.cloud.dialogflow.v2beta1.Message.participant] is required.
      * 

      *
      * 
@@ -798,8 +792,7 @@ public Builder setMessage(com.google.cloud.dialogflow.v2beta1.Message value) {
      *
      * 
      * Required. The message to create.
-     * [Message.participant][google.cloud.dialogflow.v2beta1.Message.participant]
-     * is required.
+     * [Message.participant][google.cloud.dialogflow.v2beta1.Message.participant] is required.
      * 

      *
      * 
@@ -821,8 +814,7 @@ public Builder setMessage(com.google.cloud.dialogflow.v2beta1.Message.Builder bu
      *
      * 
      * Required. The message to create.
-     * [Message.participant][google.cloud.dialogflow.v2beta1.Message.participant]
-     * is required.
+     * [Message.participant][google.cloud.dialogflow.v2beta1.Message.participant] is required.
      * 

      *
      * 
@@ -851,8 +843,7 @@ public Builder mergeMessage(com.google.cloud.dialogflow.v2beta1.Message value) {
      *
      * 
      * Required. The message to create.
-     * [Message.participant][google.cloud.dialogflow.v2beta1.Message.participant]
-     * is required.
+     * [Message.participant][google.cloud.dialogflow.v2beta1.Message.participant] is required.
      * 

      *
      * 
@@ -875,8 +866,7 @@ public Builder clearMessage() {
      *
      * 
      * Required. The message to create.
-     * [Message.participant][google.cloud.dialogflow.v2beta1.Message.participant]
-     * is required.
+     * [Message.participant][google.cloud.dialogflow.v2beta1.Message.participant] is required.
      * 

      *
      * 
@@ -893,8 +883,7 @@ public com.google.cloud.dialogflow.v2beta1.Message.Builder getMessageBuilder() {
      *
      * 
      * Required. The message to create.
-     * [Message.participant][google.cloud.dialogflow.v2beta1.Message.participant]
-     * is required.
+     * [Message.participant][google.cloud.dialogflow.v2beta1.Message.participant] is required.
      * 

      *
      * 
@@ -915,8 +904,7 @@ public com.google.cloud.dialogflow.v2beta1.MessageOrBuilder getMessageOrBuilder(
      *
      * 
      * Required. The message to create.
-     * [Message.participant][google.cloud.dialogflow.v2beta1.Message.participant]
-     * is required.
+     * [Message.participant][google.cloud.dialogflow.v2beta1.Message.participant] is required.
      * 

      *
      * 
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateMessageRequestOrBuilder.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateMessageRequestOrBuilder.java
index 561a9740b..d8c14c8de 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateMessageRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateMessageRequestOrBuilder.java
@@ -61,8 +61,7 @@ public interface CreateMessageRequestOrBuilder
    *
    * 
    * Required. The message to create.
-   * [Message.participant][google.cloud.dialogflow.v2beta1.Message.participant]
-   * is required.
+   * [Message.participant][google.cloud.dialogflow.v2beta1.Message.participant] is required.
    * 

    *
    * 
@@ -77,8 +76,7 @@ public interface CreateMessageRequestOrBuilder
    *
    * 
    * Required. The message to create.
-   * [Message.participant][google.cloud.dialogflow.v2beta1.Message.participant]
-   * is required.
+   * [Message.participant][google.cloud.dialogflow.v2beta1.Message.participant] is required.
    * 

    *
    * 
@@ -93,8 +91,7 @@ public interface CreateMessageRequestOrBuilder
    *
    * 
    * Required. The message to create.
-   * [Message.participant][google.cloud.dialogflow.v2beta1.Message.participant]
-   * is required.
+   * [Message.participant][google.cloud.dialogflow.v2beta1.Message.participant] is required.
    * 

    *
    * 
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateVersionRequest.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateVersionRequest.java
new file mode 100644
index 000000000..06eb8cbc3
--- /dev/null
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateVersionRequest.java
@@ -0,0 +1,973 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/v2beta1/version.proto
+
+package com.google.cloud.dialogflow.v2beta1;
+
+/**
+ *
+ *
+ * 
+ * The request message for [Versions.CreateVersion][google.cloud.dialogflow.v2beta1.Versions.CreateVersion].
+ * 

+ *
+ * Protobuf type {@code google.cloud.dialogflow.v2beta1.CreateVersionRequest}
+ */
+public final class CreateVersionRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.v2beta1.CreateVersionRequest)
+    CreateVersionRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use CreateVersionRequest.newBuilder() to construct.
+  private CreateVersionRequest(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+    super(builder);
+  }
+
+  private CreateVersionRequest() {
+    parent_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new CreateVersionRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private CreateVersionRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              parent_ = s;
+              break;
+            }
+          case 18:
+            {
+              com.google.cloud.dialogflow.v2beta1.Version.Builder subBuilder = null;
+              if (version_ != null) {
+                subBuilder = version_.toBuilder();
+              }
+              version_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.v2beta1.Version.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(version_);
+                version_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.v2beta1.VersionProto
+        .internal_static_google_cloud_dialogflow_v2beta1_CreateVersionRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.v2beta1.VersionProto
+        .internal_static_google_cloud_dialogflow_v2beta1_CreateVersionRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.v2beta1.CreateVersionRequest.class,
+            com.google.cloud.dialogflow.v2beta1.CreateVersionRequest.Builder.class);
+  }
+
+  public static final int PARENT_FIELD_NUMBER = 1;
+  private volatile java.lang.Object parent_;
+  /**
+   *
+   *
+   * 
+   * Required. The agent to create a version for.
+   * Supported formats:
+   * - `projects/<Project ID>/agent`
+   * - `projects/<Project ID>/locations/<Location ID>/agent`
+   * 

+   *
+   * 
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
+   *
+   * @return The parent.
+   */
+  @java.lang.Override
+  public java.lang.String getParent() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      parent_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * 
+   * Required. The agent to create a version for.
+   * Supported formats:
+   * - `projects/<Project ID>/agent`
+   * - `projects/<Project ID>/locations/<Location ID>/agent`
+   * 

+   *
+   * 
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
+   *
+   * @return The bytes for parent.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getParentBytes() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      parent_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int VERSION_FIELD_NUMBER = 2;
+  private com.google.cloud.dialogflow.v2beta1.Version version_;
+  /**
+   *
+   *
+   * 
+   * Required. The version to create.
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.Version version = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   *
+   * @return Whether the version field is set.
+   */
+  @java.lang.Override
+  public boolean hasVersion() {
+    return version_ != null;
+  }
+  /**
+   *
+   *
+   * 
+   * Required. The version to create.
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.Version version = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   *
+   * @return The version.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.v2beta1.Version getVersion() {
+    return version_ == null
+        ? com.google.cloud.dialogflow.v2beta1.Version.getDefaultInstance()
+        : version_;
+  }
+  /**
+   *
+   *
+   * 
+   * Required. The version to create.
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.Version version = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.v2beta1.VersionOrBuilder getVersionOrBuilder() {
+    return getVersion();
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getParentBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, parent_);
+    }
+    if (version_ != null) {
+      output.writeMessage(2, getVersion());
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getParentBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, parent_);
+    }
+    if (version_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getVersion());
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.v2beta1.CreateVersionRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.v2beta1.CreateVersionRequest other =
+        (com.google.cloud.dialogflow.v2beta1.CreateVersionRequest) obj;
+
+    if (!getParent().equals(other.getParent())) return false;
+    if (hasVersion() != other.hasVersion()) return false;
+    if (hasVersion()) {
+      if (!getVersion().equals(other.getVersion())) return false;
+    }
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + PARENT_FIELD_NUMBER;
+    hash = (53 * hash) + getParent().hashCode();
+    if (hasVersion()) {
+      hash = (37 * hash) + VERSION_FIELD_NUMBER;
+      hash = (53 * hash) + getVersion().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.CreateVersionRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.CreateVersionRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.CreateVersionRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.CreateVersionRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.CreateVersionRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.CreateVersionRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.CreateVersionRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.CreateVersionRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.CreateVersionRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.CreateVersionRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.CreateVersionRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.CreateVersionRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.v2beta1.CreateVersionRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * 
+   * The request message for [Versions.CreateVersion][google.cloud.dialogflow.v2beta1.Versions.CreateVersion].
+   * 

+   *
+   * Protobuf type {@code google.cloud.dialogflow.v2beta1.CreateVersionRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.v2beta1.CreateVersionRequest)
+      com.google.cloud.dialogflow.v2beta1.CreateVersionRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.v2beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_v2beta1_CreateVersionRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.v2beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_v2beta1_CreateVersionRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.v2beta1.CreateVersionRequest.class,
+              com.google.cloud.dialogflow.v2beta1.CreateVersionRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.v2beta1.CreateVersionRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      parent_ = "";
+
+      if (versionBuilder_ == null) {
+        version_ = null;
+      } else {
+        version_ = null;
+        versionBuilder_ = null;
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.v2beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_v2beta1_CreateVersionRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.CreateVersionRequest getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.v2beta1.CreateVersionRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.CreateVersionRequest build() {
+      com.google.cloud.dialogflow.v2beta1.CreateVersionRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.CreateVersionRequest buildPartial() {
+      com.google.cloud.dialogflow.v2beta1.CreateVersionRequest result =
+          new com.google.cloud.dialogflow.v2beta1.CreateVersionRequest(this);
+      result.parent_ = parent_;
+      if (versionBuilder_ == null) {
+        result.version_ = version_;
+      } else {
+        result.version_ = versionBuilder_.build();
+      }
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.v2beta1.CreateVersionRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.v2beta1.CreateVersionRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.v2beta1.CreateVersionRequest other) {
+      if (other == com.google.cloud.dialogflow.v2beta1.CreateVersionRequest.getDefaultInstance())
+        return this;
+      if (!other.getParent().isEmpty()) {
+        parent_ = other.parent_;
+        onChanged();
+      }
+      if (other.hasVersion()) {
+        mergeVersion(other.getVersion());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.v2beta1.CreateVersionRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.v2beta1.CreateVersionRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object parent_ = "";
+    /**
+     *
+     *
+     * 
+     * Required. The agent to create a version for.
+     * Supported formats:
+     * - `projects/<Project ID>/agent`
+     * - `projects/<Project ID>/locations/<Location ID>/agent`
+     * 

+     *
+     * 
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @return The parent.
+     */
+    public java.lang.String getParent() {
+      java.lang.Object ref = parent_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        parent_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The agent to create a version for.
+     * Supported formats:
+     * - `projects/<Project ID>/agent`
+     * - `projects/<Project ID>/locations/<Location ID>/agent`
+     * 

+     *
+     * 
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @return The bytes for parent.
+     */
+    public com.google.protobuf.ByteString getParentBytes() {
+      java.lang.Object ref = parent_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        parent_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The agent to create a version for.
+     * Supported formats:
+     * - `projects/<Project ID>/agent`
+     * - `projects/<Project ID>/locations/<Location ID>/agent`
+     * 

+     *
+     * 
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @param value The parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParent(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The agent to create a version for.
+     * Supported formats:
+     * - `projects/<Project ID>/agent`
+     * - `projects/<Project ID>/locations/<Location ID>/agent`
+     * 

+     *
+     * 
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearParent() {
+
+      parent_ = getDefaultInstance().getParent();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The agent to create a version for.
+     * Supported formats:
+     * - `projects/<Project ID>/agent`
+     * - `projects/<Project ID>/locations/<Location ID>/agent`
+     * 

+     *
+     * 
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @param value The bytes for parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParentBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+
+    private com.google.cloud.dialogflow.v2beta1.Version version_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.v2beta1.Version,
+            com.google.cloud.dialogflow.v2beta1.Version.Builder,
+            com.google.cloud.dialogflow.v2beta1.VersionOrBuilder>
+        versionBuilder_;
+    /**
+     *
+     *
+     * 
+     * Required. The version to create.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Version version = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     *
+     * @return Whether the version field is set.
+     */
+    public boolean hasVersion() {
+      return versionBuilder_ != null || version_ != null;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The version to create.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Version version = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     *
+     * @return The version.
+     */
+    public com.google.cloud.dialogflow.v2beta1.Version getVersion() {
+      if (versionBuilder_ == null) {
+        return version_ == null
+            ? com.google.cloud.dialogflow.v2beta1.Version.getDefaultInstance()
+            : version_;
+      } else {
+        return versionBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The version to create.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Version version = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder setVersion(com.google.cloud.dialogflow.v2beta1.Version value) {
+      if (versionBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        version_ = value;
+        onChanged();
+      } else {
+        versionBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The version to create.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Version version = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder setVersion(com.google.cloud.dialogflow.v2beta1.Version.Builder builderForValue) {
+      if (versionBuilder_ == null) {
+        version_ = builderForValue.build();
+        onChanged();
+      } else {
+        versionBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The version to create.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Version version = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder mergeVersion(com.google.cloud.dialogflow.v2beta1.Version value) {
+      if (versionBuilder_ == null) {
+        if (version_ != null) {
+          version_ =
+              com.google.cloud.dialogflow.v2beta1.Version.newBuilder(version_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          version_ = value;
+        }
+        onChanged();
+      } else {
+        versionBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The version to create.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Version version = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder clearVersion() {
+      if (versionBuilder_ == null) {
+        version_ = null;
+        onChanged();
+      } else {
+        version_ = null;
+        versionBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The version to create.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Version version = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public com.google.cloud.dialogflow.v2beta1.Version.Builder getVersionBuilder() {
+
+      onChanged();
+      return getVersionFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The version to create.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Version version = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public com.google.cloud.dialogflow.v2beta1.VersionOrBuilder getVersionOrBuilder() {
+      if (versionBuilder_ != null) {
+        return versionBuilder_.getMessageOrBuilder();
+      } else {
+        return version_ == null
+            ? com.google.cloud.dialogflow.v2beta1.Version.getDefaultInstance()
+            : version_;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The version to create.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Version version = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.v2beta1.Version,
+            com.google.cloud.dialogflow.v2beta1.Version.Builder,
+            com.google.cloud.dialogflow.v2beta1.VersionOrBuilder>
+        getVersionFieldBuilder() {
+      if (versionBuilder_ == null) {
+        versionBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.v2beta1.Version,
+                com.google.cloud.dialogflow.v2beta1.Version.Builder,
+                com.google.cloud.dialogflow.v2beta1.VersionOrBuilder>(
+                getVersion(), getParentForChildren(), isClean());
+        version_ = null;
+      }
+      return versionBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.v2beta1.CreateVersionRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.v2beta1.CreateVersionRequest)
+  private static final com.google.cloud.dialogflow.v2beta1.CreateVersionRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.v2beta1.CreateVersionRequest();
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.CreateVersionRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser PARSER =
+      new com.google.protobuf.AbstractParser() {
+        @java.lang.Override
+        public CreateVersionRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new CreateVersionRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.v2beta1.CreateVersionRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateVersionRequestOrBuilder.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateVersionRequestOrBuilder.java
new file mode 100644
index 000000000..f9d2b9ca2
--- /dev/null
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateVersionRequestOrBuilder.java
@@ -0,0 +1,101 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/v2beta1/version.proto
+
+package com.google.cloud.dialogflow.v2beta1;
+
+public interface CreateVersionRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.v2beta1.CreateVersionRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * 
+   * Required. The agent to create a version for.
+   * Supported formats:
+   * - `projects/<Project ID>/agent`
+   * - `projects/<Project ID>/locations/<Location ID>/agent`
+   * 

+   *
+   * 
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
+   *
+   * @return The parent.
+   */
+  java.lang.String getParent();
+  /**
+   *
+   *
+   * 
+   * Required. The agent to create a version for.
+   * Supported formats:
+   * - `projects/<Project ID>/agent`
+   * - `projects/<Project ID>/locations/<Location ID>/agent`
+   * 

+   *
+   * 
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
+   *
+   * @return The bytes for parent.
+   */
+  com.google.protobuf.ByteString getParentBytes();
+
+  /**
+   *
+   *
+   * 
+   * Required. The version to create.
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.Version version = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   *
+   * @return Whether the version field is set.
+   */
+  boolean hasVersion();
+  /**
+   *
+   *
+   * 
+   * Required. The version to create.
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.Version version = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   *
+   * @return The version.
+   */
+  com.google.cloud.dialogflow.v2beta1.Version getVersion();
+  /**
+   *
+   *
+   * 
+   * Required. The version to create.
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.Version version = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   */
+  com.google.cloud.dialogflow.v2beta1.VersionOrBuilder getVersionOrBuilder();
+}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/DeleteEnvironmentRequest.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/DeleteEnvironmentRequest.java
new file mode 100644
index 000000000..f4a39f1dd
--- /dev/null
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/DeleteEnvironmentRequest.java
@@ -0,0 +1,682 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/v2beta1/environment.proto
+
+package com.google.cloud.dialogflow.v2beta1;
+
+/**
+ *
+ *
+ * 
+ * The request message for [Environments.DeleteEnvironment][google.cloud.dialogflow.v2beta1.Environments.DeleteEnvironment].
+ * 

+ *
+ * Protobuf type {@code google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest}
+ */
+public final class DeleteEnvironmentRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest)
+    DeleteEnvironmentRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use DeleteEnvironmentRequest.newBuilder() to construct.
+  private DeleteEnvironmentRequest(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+    super(builder);
+  }
+
+  private DeleteEnvironmentRequest() {
+    name_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new DeleteEnvironmentRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private DeleteEnvironmentRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              name_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.v2beta1.EnvironmentProto
+        .internal_static_google_cloud_dialogflow_v2beta1_DeleteEnvironmentRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.v2beta1.EnvironmentProto
+        .internal_static_google_cloud_dialogflow_v2beta1_DeleteEnvironmentRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest.class,
+            com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest.Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   *
+   *
+   * 
+   * Required. The name of the environment to delete.
+   * / Format:
+   * - `projects/<Project Number / ID>/agent/environments/<Environment ID>`
+   * - `projects/<Project Number / ID>/locations/<Location
+   * ID>/agent/environments/<Environment ID>`
+   * 

+   *
+   * 
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
+   *
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * 
+   * Required. The name of the environment to delete.
+   * / Format:
+   * - `projects/<Project Number / ID>/agent/environments/<Environment ID>`
+   * - `projects/<Project Number / ID>/locations/<Location
+   * ID>/agent/environments/<Environment ID>`
+   * 

+   *
+   * 
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
+   *
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest other =
+        (com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest) obj;
+
+    if (!getName().equals(other.getName())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * 
+   * The request message for [Environments.DeleteEnvironment][google.cloud.dialogflow.v2beta1.Environments.DeleteEnvironment].
+   * 

+   *
+   * Protobuf type {@code google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest)
+      com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.v2beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_v2beta1_DeleteEnvironmentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.v2beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_v2beta1_DeleteEnvironmentRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest.class,
+              com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.v2beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_v2beta1_DeleteEnvironmentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest
+        getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest build() {
+      com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest buildPartial() {
+      com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest result =
+          new com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest(this);
+      result.name_ = name_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest other) {
+      if (other
+          == com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest.getDefaultInstance())
+        return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     *
+     *
+     * 
+     * Required. The name of the environment to delete.
+     * / Format:
+     * - `projects/<Project Number / ID>/agent/environments/<Environment ID>`
+     * - `projects/<Project Number / ID>/locations/<Location
+     * ID>/agent/environments/<Environment ID>`
+     * 

+     *
+     * 
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The name of the environment to delete.
+     * / Format:
+     * - `projects/<Project Number / ID>/agent/environments/<Environment ID>`
+     * - `projects/<Project Number / ID>/locations/<Location
+     * ID>/agent/environments/<Environment ID>`
+     * 

+     *
+     * 
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The name of the environment to delete.
+     * / Format:
+     * - `projects/<Project Number / ID>/agent/environments/<Environment ID>`
+     * - `projects/<Project Number / ID>/locations/<Location
+     * ID>/agent/environments/<Environment ID>`
+     * 

+     *
+     * 
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The name of the environment to delete.
+     * / Format:
+     * - `projects/<Project Number / ID>/agent/environments/<Environment ID>`
+     * - `projects/<Project Number / ID>/locations/<Location
+     * ID>/agent/environments/<Environment ID>`
+     * 

+     *
+     * 
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The name of the environment to delete.
+     * / Format:
+     * - `projects/<Project Number / ID>/agent/environments/<Environment ID>`
+     * - `projects/<Project Number / ID>/locations/<Location
+     * ID>/agent/environments/<Environment ID>`
+     * 

+     *
+     * 
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest)
+  private static final com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest
+      DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest();
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser PARSER =
+      new com.google.protobuf.AbstractParser() {
+        @java.lang.Override
+        public DeleteEnvironmentRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new DeleteEnvironmentRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/DeleteEnvironmentRequestOrBuilder.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/DeleteEnvironmentRequestOrBuilder.java
new file mode 100644
index 000000000..809705ddc
--- /dev/null
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/DeleteEnvironmentRequestOrBuilder.java
@@ -0,0 +1,62 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/v2beta1/environment.proto
+
+package com.google.cloud.dialogflow.v2beta1;
+
+public interface DeleteEnvironmentRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.v2beta1.DeleteEnvironmentRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * 
+   * Required. The name of the environment to delete.
+   * / Format:
+   * - `projects/<Project Number / ID>/agent/environments/<Environment ID>`
+   * - `projects/<Project Number / ID>/locations/<Location
+   * ID>/agent/environments/<Environment ID>`
+   * 

+   *
+   * 
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
+   *
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   *
+   *
+   * 
+   * Required. The name of the environment to delete.
+   * / Format:
+   * - `projects/<Project Number / ID>/agent/environments/<Environment ID>`
+   * - `projects/<Project Number / ID>/locations/<Location
+   * ID>/agent/environments/<Environment ID>`
+   * 

+   *
+   * 
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
+   *
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString getNameBytes();
+}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/DeleteVersionRequest.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/DeleteVersionRequest.java
new file mode 100644
index 000000000..28741b59a
--- /dev/null
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/DeleteVersionRequest.java
@@ -0,0 +1,679 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/v2beta1/version.proto
+
+package com.google.cloud.dialogflow.v2beta1;
+
+/**
+ *
+ *
+ * 
+ * The request message for [Versions.DeleteVersion][google.cloud.dialogflow.v2beta1.Versions.DeleteVersion].
+ * 

+ *
+ * Protobuf type {@code google.cloud.dialogflow.v2beta1.DeleteVersionRequest}
+ */
+public final class DeleteVersionRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.v2beta1.DeleteVersionRequest)
+    DeleteVersionRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use DeleteVersionRequest.newBuilder() to construct.
+  private DeleteVersionRequest(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+    super(builder);
+  }
+
+  private DeleteVersionRequest() {
+    name_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new DeleteVersionRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private DeleteVersionRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              name_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.v2beta1.VersionProto
+        .internal_static_google_cloud_dialogflow_v2beta1_DeleteVersionRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.v2beta1.VersionProto
+        .internal_static_google_cloud_dialogflow_v2beta1_DeleteVersionRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest.class,
+            com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest.Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   *
+   *
+   * 
+   * Required. The name of the version to delete.
+   * Supported formats:
+   * - `projects/<Project ID>/agent/versions/<Version ID>`
+   * - `projects/<Project ID>/locations/<Location ID>/agent/versions/<Version
+   *   ID>`
+   * 

+   *
+   * 
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
+   *
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * 
+   * Required. The name of the version to delete.
+   * Supported formats:
+   * - `projects/<Project ID>/agent/versions/<Version ID>`
+   * - `projects/<Project ID>/locations/<Location ID>/agent/versions/<Version
+   *   ID>`
+   * 

+   *
+   * 
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
+   *
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest other =
+        (com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest) obj;
+
+    if (!getName().equals(other.getName())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * 
+   * The request message for [Versions.DeleteVersion][google.cloud.dialogflow.v2beta1.Versions.DeleteVersion].
+   * 

+   *
+   * Protobuf type {@code google.cloud.dialogflow.v2beta1.DeleteVersionRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.v2beta1.DeleteVersionRequest)
+      com.google.cloud.dialogflow.v2beta1.DeleteVersionRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.v2beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_v2beta1_DeleteVersionRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.v2beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_v2beta1_DeleteVersionRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest.class,
+              com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.v2beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_v2beta1_DeleteVersionRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest build() {
+      com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest buildPartial() {
+      com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest result =
+          new com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest(this);
+      result.name_ = name_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest other) {
+      if (other == com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest.getDefaultInstance())
+        return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     *
+     *
+     * 
+     * Required. The name of the version to delete.
+     * Supported formats:
+     * - `projects/<Project ID>/agent/versions/<Version ID>`
+     * - `projects/<Project ID>/locations/<Location ID>/agent/versions/<Version
+     *   ID>`
+     * 

+     *
+     * 
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The name of the version to delete.
+     * Supported formats:
+     * - `projects/<Project ID>/agent/versions/<Version ID>`
+     * - `projects/<Project ID>/locations/<Location ID>/agent/versions/<Version
+     *   ID>`
+     * 

+     *
+     * 
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The name of the version to delete.
+     * Supported formats:
+     * - `projects/<Project ID>/agent/versions/<Version ID>`
+     * - `projects/<Project ID>/locations/<Location ID>/agent/versions/<Version
+     *   ID>`
+     * 

+     *
+     * 
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The name of the version to delete.
+     * Supported formats:
+     * - `projects/<Project ID>/agent/versions/<Version ID>`
+     * - `projects/<Project ID>/locations/<Location ID>/agent/versions/<Version
+     *   ID>`
+     * 

+     *
+     * 
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The name of the version to delete.
+     * Supported formats:
+     * - `projects/<Project ID>/agent/versions/<Version ID>`
+     * - `projects/<Project ID>/locations/<Location ID>/agent/versions/<Version
+     *   ID>`
+     * 

+     *
+     * 
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.v2beta1.DeleteVersionRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.v2beta1.DeleteVersionRequest)
+  private static final com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest();
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser PARSER =
+      new com.google.protobuf.AbstractParser() {
+        @java.lang.Override
+        public DeleteVersionRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new DeleteVersionRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.v2beta1.DeleteVersionRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/DeleteVersionRequestOrBuilder.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/DeleteVersionRequestOrBuilder.java
new file mode 100644
index 000000000..b9852bba9
--- /dev/null
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/DeleteVersionRequestOrBuilder.java
@@ -0,0 +1,62 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/v2beta1/version.proto
+
+package com.google.cloud.dialogflow.v2beta1;
+
+public interface DeleteVersionRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.v2beta1.DeleteVersionRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * 
+   * Required. The name of the version to delete.
+   * Supported formats:
+   * - `projects/<Project ID>/agent/versions/<Version ID>`
+   * - `projects/<Project ID>/locations/<Location ID>/agent/versions/<Version
+   *   ID>`
+   * 

+   *
+   * 
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
+   *
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   *
+   *
+   * 
+   * Required. The name of the version to delete.
+   * Supported formats:
+   * - `projects/<Project ID>/agent/versions/<Version ID>`
+   * - `projects/<Project ID>/locations/<Location ID>/agent/versions/<Version
+   *   ID>`
+   * 

+   *
+   * 
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
+   *
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString getNameBytes();
+}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/Environment.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/Environment.java
index 104eed0d0..4a63b354d 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/Environment.java
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/Environment.java
@@ -127,6 +127,39 @@ private Environment(
                 updateTime_ = subBuilder.buildPartial();
               }
 
+              break;
+            }
+          case 58:
+            {
+              com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings.Builder subBuilder = null;
+              if (textToSpeechSettings_ != null) {
+                subBuilder = textToSpeechSettings_.toBuilder();
+              }
+              textToSpeechSettings_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings.parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(textToSpeechSettings_);
+                textToSpeechSettings_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 66:
+            {
+              com.google.cloud.dialogflow.v2beta1.Fulfillment.Builder subBuilder = null;
+              if (fulfillment_ != null) {
+                subBuilder = fulfillment_.toBuilder();
+              }
+              fulfillment_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.v2beta1.Fulfillment.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(fulfillment_);
+                fulfillment_ = subBuilder.buildPartial();
+              }
+
               break;
             }
           default:
@@ -607,6 +640,115 @@ public com.google.protobuf.TimestampOrBuilder getUpdateTimeOrBuilder() {
     return getUpdateTime();
   }
 
+  public static final int TEXT_TO_SPEECH_SETTINGS_FIELD_NUMBER = 7;
+  private com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings textToSpeechSettings_;
+  /**
+   *
+   *
+   * 
+   * Optional. Text to speech settings for this environment.
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.TextToSpeechSettings text_to_speech_settings = 7 [(.google.api.field_behavior) = OPTIONAL];
+   * 
+   *
+   * @return Whether the textToSpeechSettings field is set.
+   */
+  @java.lang.Override
+  public boolean hasTextToSpeechSettings() {
+    return textToSpeechSettings_ != null;
+  }
+  /**
+   *
+   *
+   * 
+   * Optional. Text to speech settings for this environment.
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.TextToSpeechSettings text_to_speech_settings = 7 [(.google.api.field_behavior) = OPTIONAL];
+   * 
+   *
+   * @return The textToSpeechSettings.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings getTextToSpeechSettings() {
+    return textToSpeechSettings_ == null
+        ? com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings.getDefaultInstance()
+        : textToSpeechSettings_;
+  }
+  /**
+   *
+   *
+   * 
+   * Optional. Text to speech settings for this environment.
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.TextToSpeechSettings text_to_speech_settings = 7 [(.google.api.field_behavior) = OPTIONAL];
+   * 
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.v2beta1.TextToSpeechSettingsOrBuilder
+      getTextToSpeechSettingsOrBuilder() {
+    return getTextToSpeechSettings();
+  }
+
+  public static final int FULFILLMENT_FIELD_NUMBER = 8;
+  private com.google.cloud.dialogflow.v2beta1.Fulfillment fulfillment_;
+  /**
+   *
+   *
+   * 
+   * Optional. The fulfillment settings to use for this environment.
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.Fulfillment fulfillment = 8 [(.google.api.field_behavior) = OPTIONAL];
+   * 
+   *
+   * @return Whether the fulfillment field is set.
+   */
+  @java.lang.Override
+  public boolean hasFulfillment() {
+    return fulfillment_ != null;
+  }
+  /**
+   *
+   *
+   * 
+   * Optional. The fulfillment settings to use for this environment.
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.Fulfillment fulfillment = 8 [(.google.api.field_behavior) = OPTIONAL];
+   * 
+   *
+   * @return The fulfillment.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.v2beta1.Fulfillment getFulfillment() {
+    return fulfillment_ == null
+        ? com.google.cloud.dialogflow.v2beta1.Fulfillment.getDefaultInstance()
+        : fulfillment_;
+  }
+  /**
+   *
+   *
+   * 
+   * Optional. The fulfillment settings to use for this environment.
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.Fulfillment fulfillment = 8 [(.google.api.field_behavior) = OPTIONAL];
+   * 
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.v2beta1.FulfillmentOrBuilder getFulfillmentOrBuilder() {
+    return getFulfillment();
+  }
+
   private byte memoizedIsInitialized = -1;
 
   @java.lang.Override
@@ -637,6 +779,12 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (updateTime_ != null) {
       output.writeMessage(5, getUpdateTime());
     }
+    if (textToSpeechSettings_ != null) {
+      output.writeMessage(7, getTextToSpeechSettings());
+    }
+    if (fulfillment_ != null) {
+      output.writeMessage(8, getFulfillment());
+    }
     unknownFields.writeTo(output);
   }
 
@@ -662,6 +810,13 @@ public int getSerializedSize() {
     if (updateTime_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(5, getUpdateTime());
     }
+    if (textToSpeechSettings_ != null) {
+      size +=
+          com.google.protobuf.CodedOutputStream.computeMessageSize(7, getTextToSpeechSettings());
+    }
+    if (fulfillment_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(8, getFulfillment());
+    }
     size += unknownFields.getSerializedSize();
     memoizedSize = size;
     return size;
@@ -686,6 +841,14 @@ public boolean equals(final java.lang.Object obj) {
     if (hasUpdateTime()) {
       if (!getUpdateTime().equals(other.getUpdateTime())) return false;
     }
+    if (hasTextToSpeechSettings() != other.hasTextToSpeechSettings()) return false;
+    if (hasTextToSpeechSettings()) {
+      if (!getTextToSpeechSettings().equals(other.getTextToSpeechSettings())) return false;
+    }
+    if (hasFulfillment() != other.hasFulfillment()) return false;
+    if (hasFulfillment()) {
+      if (!getFulfillment().equals(other.getFulfillment())) return false;
+    }
     if (!unknownFields.equals(other.unknownFields)) return false;
     return true;
   }
@@ -709,6 +872,14 @@ public int hashCode() {
       hash = (37 * hash) + UPDATE_TIME_FIELD_NUMBER;
       hash = (53 * hash) + getUpdateTime().hashCode();
     }
+    if (hasTextToSpeechSettings()) {
+      hash = (37 * hash) + TEXT_TO_SPEECH_SETTINGS_FIELD_NUMBER;
+      hash = (53 * hash) + getTextToSpeechSettings().hashCode();
+    }
+    if (hasFulfillment()) {
+      hash = (37 * hash) + FULFILLMENT_FIELD_NUMBER;
+      hash = (53 * hash) + getFulfillment().hashCode();
+    }
     hash = (29 * hash) + unknownFields.hashCode();
     memoizedHashCode = hash;
     return hash;
@@ -881,6 +1052,18 @@ public Builder clear() {
         updateTime_ = null;
         updateTimeBuilder_ = null;
       }
+      if (textToSpeechSettingsBuilder_ == null) {
+        textToSpeechSettings_ = null;
+      } else {
+        textToSpeechSettings_ = null;
+        textToSpeechSettingsBuilder_ = null;
+      }
+      if (fulfillmentBuilder_ == null) {
+        fulfillment_ = null;
+      } else {
+        fulfillment_ = null;
+        fulfillmentBuilder_ = null;
+      }
       return this;
     }
 
@@ -917,6 +1100,16 @@ public com.google.cloud.dialogflow.v2beta1.Environment buildPartial() {
       } else {
         result.updateTime_ = updateTimeBuilder_.build();
       }
+      if (textToSpeechSettingsBuilder_ == null) {
+        result.textToSpeechSettings_ = textToSpeechSettings_;
+      } else {
+        result.textToSpeechSettings_ = textToSpeechSettingsBuilder_.build();
+      }
+      if (fulfillmentBuilder_ == null) {
+        result.fulfillment_ = fulfillment_;
+      } else {
+        result.fulfillment_ = fulfillmentBuilder_.build();
+      }
       onBuilt();
       return result;
     }
@@ -985,6 +1178,12 @@ public Builder mergeFrom(com.google.cloud.dialogflow.v2beta1.Environment other)
       if (other.hasUpdateTime()) {
         mergeUpdateTime(other.getUpdateTime());
       }
+      if (other.hasTextToSpeechSettings()) {
+        mergeTextToSpeechSettings(other.getTextToSpeechSettings());
+      }
+      if (other.hasFulfillment()) {
+        mergeFulfillment(other.getFulfillment());
+      }
       this.mergeUnknownFields(other.unknownFields);
       onChanged();
       return this;
@@ -1695,6 +1894,419 @@ public com.google.protobuf.TimestampOrBuilder getUpdateTimeOrBuilder() {
       return updateTimeBuilder_;
     }
 
+    private com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings textToSpeechSettings_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings,
+            com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings.Builder,
+            com.google.cloud.dialogflow.v2beta1.TextToSpeechSettingsOrBuilder>
+        textToSpeechSettingsBuilder_;
+    /**
+     *
+     *
+     * 
+     * Optional. Text to speech settings for this environment.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.TextToSpeechSettings text_to_speech_settings = 7 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     *
+     * @return Whether the textToSpeechSettings field is set.
+     */
+    public boolean hasTextToSpeechSettings() {
+      return textToSpeechSettingsBuilder_ != null || textToSpeechSettings_ != null;
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. Text to speech settings for this environment.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.TextToSpeechSettings text_to_speech_settings = 7 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     *
+     * @return The textToSpeechSettings.
+     */
+    public com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings getTextToSpeechSettings() {
+      if (textToSpeechSettingsBuilder_ == null) {
+        return textToSpeechSettings_ == null
+            ? com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings.getDefaultInstance()
+            : textToSpeechSettings_;
+      } else {
+        return textToSpeechSettingsBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. Text to speech settings for this environment.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.TextToSpeechSettings text_to_speech_settings = 7 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     */
+    public Builder setTextToSpeechSettings(
+        com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings value) {
+      if (textToSpeechSettingsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        textToSpeechSettings_ = value;
+        onChanged();
+      } else {
+        textToSpeechSettingsBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. Text to speech settings for this environment.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.TextToSpeechSettings text_to_speech_settings = 7 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     */
+    public Builder setTextToSpeechSettings(
+        com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings.Builder builderForValue) {
+      if (textToSpeechSettingsBuilder_ == null) {
+        textToSpeechSettings_ = builderForValue.build();
+        onChanged();
+      } else {
+        textToSpeechSettingsBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. Text to speech settings for this environment.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.TextToSpeechSettings text_to_speech_settings = 7 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     */
+    public Builder mergeTextToSpeechSettings(
+        com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings value) {
+      if (textToSpeechSettingsBuilder_ == null) {
+        if (textToSpeechSettings_ != null) {
+          textToSpeechSettings_ =
+              com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings.newBuilder(
+                      textToSpeechSettings_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          textToSpeechSettings_ = value;
+        }
+        onChanged();
+      } else {
+        textToSpeechSettingsBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. Text to speech settings for this environment.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.TextToSpeechSettings text_to_speech_settings = 7 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     */
+    public Builder clearTextToSpeechSettings() {
+      if (textToSpeechSettingsBuilder_ == null) {
+        textToSpeechSettings_ = null;
+        onChanged();
+      } else {
+        textToSpeechSettings_ = null;
+        textToSpeechSettingsBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. Text to speech settings for this environment.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.TextToSpeechSettings text_to_speech_settings = 7 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     */
+    public com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings.Builder
+        getTextToSpeechSettingsBuilder() {
+
+      onChanged();
+      return getTextToSpeechSettingsFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. Text to speech settings for this environment.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.TextToSpeechSettings text_to_speech_settings = 7 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     */
+    public com.google.cloud.dialogflow.v2beta1.TextToSpeechSettingsOrBuilder
+        getTextToSpeechSettingsOrBuilder() {
+      if (textToSpeechSettingsBuilder_ != null) {
+        return textToSpeechSettingsBuilder_.getMessageOrBuilder();
+      } else {
+        return textToSpeechSettings_ == null
+            ? com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings.getDefaultInstance()
+            : textToSpeechSettings_;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. Text to speech settings for this environment.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.TextToSpeechSettings text_to_speech_settings = 7 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings,
+            com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings.Builder,
+            com.google.cloud.dialogflow.v2beta1.TextToSpeechSettingsOrBuilder>
+        getTextToSpeechSettingsFieldBuilder() {
+      if (textToSpeechSettingsBuilder_ == null) {
+        textToSpeechSettingsBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings,
+                com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings.Builder,
+                com.google.cloud.dialogflow.v2beta1.TextToSpeechSettingsOrBuilder>(
+                getTextToSpeechSettings(), getParentForChildren(), isClean());
+        textToSpeechSettings_ = null;
+      }
+      return textToSpeechSettingsBuilder_;
+    }
+
+    private com.google.cloud.dialogflow.v2beta1.Fulfillment fulfillment_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.v2beta1.Fulfillment,
+            com.google.cloud.dialogflow.v2beta1.Fulfillment.Builder,
+            com.google.cloud.dialogflow.v2beta1.FulfillmentOrBuilder>
+        fulfillmentBuilder_;
+    /**
+     *
+     *
+     * 
+     * Optional. The fulfillment settings to use for this environment.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Fulfillment fulfillment = 8 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     *
+     * @return Whether the fulfillment field is set.
+     */
+    public boolean hasFulfillment() {
+      return fulfillmentBuilder_ != null || fulfillment_ != null;
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. The fulfillment settings to use for this environment.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Fulfillment fulfillment = 8 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     *
+     * @return The fulfillment.
+     */
+    public com.google.cloud.dialogflow.v2beta1.Fulfillment getFulfillment() {
+      if (fulfillmentBuilder_ == null) {
+        return fulfillment_ == null
+            ? com.google.cloud.dialogflow.v2beta1.Fulfillment.getDefaultInstance()
+            : fulfillment_;
+      } else {
+        return fulfillmentBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. The fulfillment settings to use for this environment.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Fulfillment fulfillment = 8 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     */
+    public Builder setFulfillment(com.google.cloud.dialogflow.v2beta1.Fulfillment value) {
+      if (fulfillmentBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        fulfillment_ = value;
+        onChanged();
+      } else {
+        fulfillmentBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. The fulfillment settings to use for this environment.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Fulfillment fulfillment = 8 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     */
+    public Builder setFulfillment(
+        com.google.cloud.dialogflow.v2beta1.Fulfillment.Builder builderForValue) {
+      if (fulfillmentBuilder_ == null) {
+        fulfillment_ = builderForValue.build();
+        onChanged();
+      } else {
+        fulfillmentBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. The fulfillment settings to use for this environment.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Fulfillment fulfillment = 8 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     */
+    public Builder mergeFulfillment(com.google.cloud.dialogflow.v2beta1.Fulfillment value) {
+      if (fulfillmentBuilder_ == null) {
+        if (fulfillment_ != null) {
+          fulfillment_ =
+              com.google.cloud.dialogflow.v2beta1.Fulfillment.newBuilder(fulfillment_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          fulfillment_ = value;
+        }
+        onChanged();
+      } else {
+        fulfillmentBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. The fulfillment settings to use for this environment.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Fulfillment fulfillment = 8 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     */
+    public Builder clearFulfillment() {
+      if (fulfillmentBuilder_ == null) {
+        fulfillment_ = null;
+        onChanged();
+      } else {
+        fulfillment_ = null;
+        fulfillmentBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. The fulfillment settings to use for this environment.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Fulfillment fulfillment = 8 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     */
+    public com.google.cloud.dialogflow.v2beta1.Fulfillment.Builder getFulfillmentBuilder() {
+
+      onChanged();
+      return getFulfillmentFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. The fulfillment settings to use for this environment.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Fulfillment fulfillment = 8 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     */
+    public com.google.cloud.dialogflow.v2beta1.FulfillmentOrBuilder getFulfillmentOrBuilder() {
+      if (fulfillmentBuilder_ != null) {
+        return fulfillmentBuilder_.getMessageOrBuilder();
+      } else {
+        return fulfillment_ == null
+            ? com.google.cloud.dialogflow.v2beta1.Fulfillment.getDefaultInstance()
+            : fulfillment_;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. The fulfillment settings to use for this environment.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Fulfillment fulfillment = 8 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.v2beta1.Fulfillment,
+            com.google.cloud.dialogflow.v2beta1.Fulfillment.Builder,
+            com.google.cloud.dialogflow.v2beta1.FulfillmentOrBuilder>
+        getFulfillmentFieldBuilder() {
+      if (fulfillmentBuilder_ == null) {
+        fulfillmentBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.v2beta1.Fulfillment,
+                com.google.cloud.dialogflow.v2beta1.Fulfillment.Builder,
+                com.google.cloud.dialogflow.v2beta1.FulfillmentOrBuilder>(
+                getFulfillment(), getParentForChildren(), isClean());
+        fulfillment_ = null;
+      }
+      return fulfillmentBuilder_;
+    }
+
     @java.lang.Override
     public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
       return super.setUnknownFields(unknownFields);
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/EnvironmentHistory.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/EnvironmentHistory.java
new file mode 100644
index 000000000..6bfbdb1b7
--- /dev/null
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/EnvironmentHistory.java
@@ -0,0 +1,2607 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/v2beta1/environment.proto
+
+package com.google.cloud.dialogflow.v2beta1;
+
+/**
+ *
+ *
+ * 
+ * The response message for [Environments.GetEnvironmentHistory][google.cloud.dialogflow.v2beta1.Environments.GetEnvironmentHistory].
+ * 

+ *
+ * Protobuf type {@code google.cloud.dialogflow.v2beta1.EnvironmentHistory}
+ */
+public final class EnvironmentHistory extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.v2beta1.EnvironmentHistory)
+    EnvironmentHistoryOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use EnvironmentHistory.newBuilder() to construct.
+  private EnvironmentHistory(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+    super(builder);
+  }
+
+  private EnvironmentHistory() {
+    parent_ = "";
+    entries_ = java.util.Collections.emptyList();
+    nextPageToken_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new EnvironmentHistory();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private EnvironmentHistory(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              parent_ = s;
+              break;
+            }
+          case 18:
+            {
+              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+                entries_ =
+                    new java.util.ArrayList<
+                        com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry>();
+                mutable_bitField0_ |= 0x00000001;
+              }
+              entries_.add(
+                  input.readMessage(
+                      com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry.parser(),
+                      extensionRegistry));
+              break;
+            }
+          case 26:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              nextPageToken_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      if (((mutable_bitField0_ & 0x00000001) != 0)) {
+        entries_ = java.util.Collections.unmodifiableList(entries_);
+      }
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.v2beta1.EnvironmentProto
+        .internal_static_google_cloud_dialogflow_v2beta1_EnvironmentHistory_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.v2beta1.EnvironmentProto
+        .internal_static_google_cloud_dialogflow_v2beta1_EnvironmentHistory_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.class,
+            com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Builder.class);
+  }
+
+  public interface EntryOrBuilder
+      extends
+      // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry)
+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     *
+     *
+     * 
+     * The agent version loaded into this environment history entry.
+     * 

+     *
+     * string agent_version = 1;
+     *
+     * @return The agentVersion.
+     */
+    java.lang.String getAgentVersion();
+    /**
+     *
+     *
+     * 
+     * The agent version loaded into this environment history entry.
+     * 

+     *
+     * string agent_version = 1;
+     *
+     * @return The bytes for agentVersion.
+     */
+    com.google.protobuf.ByteString getAgentVersionBytes();
+
+    /**
+     *
+     *
+     * 
+     * The developer-provided description for this environment history entry.
+     * 

+     *
+     * string description = 2;
+     *
+     * @return The description.
+     */
+    java.lang.String getDescription();
+    /**
+     *
+     *
+     * 
+     * The developer-provided description for this environment history entry.
+     * 

+     *
+     * string description = 2;
+     *
+     * @return The bytes for description.
+     */
+    com.google.protobuf.ByteString getDescriptionBytes();
+
+    /**
+     *
+     *
+     * 
+     * The creation time of this environment history entry.
+     * 

+     *
+     * .google.protobuf.Timestamp create_time = 3;
+     *
+     * @return Whether the createTime field is set.
+     */
+    boolean hasCreateTime();
+    /**
+     *
+     *
+     * 
+     * The creation time of this environment history entry.
+     * 

+     *
+     * .google.protobuf.Timestamp create_time = 3;
+     *
+     * @return The createTime.
+     */
+    com.google.protobuf.Timestamp getCreateTime();
+    /**
+     *
+     *
+     * 
+     * The creation time of this environment history entry.
+     * 

+     *
+     * .google.protobuf.Timestamp create_time = 3;
+     */
+    com.google.protobuf.TimestampOrBuilder getCreateTimeOrBuilder();
+  }
+  /**
+   *
+   *
+   * 
+   * Represents an environment history entry.
+   * 

+   *
+   * Protobuf type {@code google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry}
+   */
+  public static final class Entry extends com.google.protobuf.GeneratedMessageV3
+      implements
+      // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry)
+      EntryOrBuilder {
+    private static final long serialVersionUID = 0L;
+    // Use Entry.newBuilder() to construct.
+    private Entry(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+      super(builder);
+    }
+
+    private Entry() {
+      agentVersion_ = "";
+      description_ = "";
+    }
+
+    @java.lang.Override
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+      return new Entry();
+    }
+
+    @java.lang.Override
+    public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+      return this.unknownFields;
+    }
+
+    private Entry(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      this();
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+          com.google.protobuf.UnknownFieldSet.newBuilder();
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+
+                agentVersion_ = s;
+                break;
+              }
+            case 18:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+
+                description_ = s;
+                break;
+              }
+            case 26:
+              {
+                com.google.protobuf.Timestamp.Builder subBuilder = null;
+                if (createTime_ != null) {
+                  subBuilder = createTime_.toBuilder();
+                }
+                createTime_ =
+                    input.readMessage(com.google.protobuf.Timestamp.parser(), extensionRegistry);
+                if (subBuilder != null) {
+                  subBuilder.mergeFrom(createTime_);
+                  createTime_ = subBuilder.buildPartial();
+                }
+
+                break;
+              }
+            default:
+              {
+                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                  done = true;
+                }
+                break;
+              }
+          }
+        }
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.setUnfinishedMessage(this);
+      } catch (java.io.IOException e) {
+        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+      } finally {
+        this.unknownFields = unknownFields.build();
+        makeExtensionsImmutable();
+      }
+    }
+
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.v2beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_v2beta1_EnvironmentHistory_Entry_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.v2beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_v2beta1_EnvironmentHistory_Entry_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry.class,
+              com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry.Builder.class);
+    }
+
+    public static final int AGENT_VERSION_FIELD_NUMBER = 1;
+    private volatile java.lang.Object agentVersion_;
+    /**
+     *
+     *
+     * 
+     * The agent version loaded into this environment history entry.
+     * 

+     *
+     * string agent_version = 1;
+     *
+     * @return The agentVersion.
+     */
+    @java.lang.Override
+    public java.lang.String getAgentVersion() {
+      java.lang.Object ref = agentVersion_;
+      if (ref instanceof java.lang.String) {
+        return (java.lang.String) ref;
+      } else {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        agentVersion_ = s;
+        return s;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * The agent version loaded into this environment history entry.
+     * 

+     *
+     * string agent_version = 1;
+     *
+     * @return The bytes for agentVersion.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getAgentVersionBytes() {
+      java.lang.Object ref = agentVersion_;
+      if (ref instanceof java.lang.String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        agentVersion_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+
+    public static final int DESCRIPTION_FIELD_NUMBER = 2;
+    private volatile java.lang.Object description_;
+    /**
+     *
+     *
+     * 
+     * The developer-provided description for this environment history entry.
+     * 

+     *
+     * string description = 2;
+     *
+     * @return The description.
+     */
+    @java.lang.Override
+    public java.lang.String getDescription() {
+      java.lang.Object ref = description_;
+      if (ref instanceof java.lang.String) {
+        return (java.lang.String) ref;
+      } else {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        description_ = s;
+        return s;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * The developer-provided description for this environment history entry.
+     * 

+     *
+     * string description = 2;
+     *
+     * @return The bytes for description.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getDescriptionBytes() {
+      java.lang.Object ref = description_;
+      if (ref instanceof java.lang.String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        description_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+
+    public static final int CREATE_TIME_FIELD_NUMBER = 3;
+    private com.google.protobuf.Timestamp createTime_;
+    /**
+     *
+     *
+     * 
+     * The creation time of this environment history entry.
+     * 

+     *
+     * .google.protobuf.Timestamp create_time = 3;
+     *
+     * @return Whether the createTime field is set.
+     */
+    @java.lang.Override
+    public boolean hasCreateTime() {
+      return createTime_ != null;
+    }
+    /**
+     *
+     *
+     * 
+     * The creation time of this environment history entry.
+     * 

+     *
+     * .google.protobuf.Timestamp create_time = 3;
+     *
+     * @return The createTime.
+     */
+    @java.lang.Override
+    public com.google.protobuf.Timestamp getCreateTime() {
+      return createTime_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : createTime_;
+    }
+    /**
+     *
+     *
+     * 
+     * The creation time of this environment history entry.
+     * 

+     *
+     * .google.protobuf.Timestamp create_time = 3;
+     */
+    @java.lang.Override
+    public com.google.protobuf.TimestampOrBuilder getCreateTimeOrBuilder() {
+      return getCreateTime();
+    }
+
+    private byte memoizedIsInitialized = -1;
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    @java.lang.Override
+    public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+      if (!getAgentVersionBytes().isEmpty()) {
+        com.google.protobuf.GeneratedMessageV3.writeString(output, 1, agentVersion_);
+      }
+      if (!getDescriptionBytes().isEmpty()) {
+        com.google.protobuf.GeneratedMessageV3.writeString(output, 2, description_);
+      }
+      if (createTime_ != null) {
+        output.writeMessage(3, getCreateTime());
+      }
+      unknownFields.writeTo(output);
+    }
+
+    @java.lang.Override
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      if (!getAgentVersionBytes().isEmpty()) {
+        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, agentVersion_);
+      }
+      if (!getDescriptionBytes().isEmpty()) {
+        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, description_);
+      }
+      if (createTime_ != null) {
+        size += com.google.protobuf.CodedOutputStream.computeMessageSize(3, getCreateTime());
+      }
+      size += unknownFields.getSerializedSize();
+      memoizedSize = size;
+      return size;
+    }
+
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+        return true;
+      }
+      if (!(obj instanceof com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry)) {
+        return super.equals(obj);
+      }
+      com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry other =
+          (com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry) obj;
+
+      if (!getAgentVersion().equals(other.getAgentVersion())) return false;
+      if (!getDescription().equals(other.getDescription())) return false;
+      if (hasCreateTime() != other.hasCreateTime()) return false;
+      if (hasCreateTime()) {
+        if (!getCreateTime().equals(other.getCreateTime())) return false;
+      }
+      if (!unknownFields.equals(other.unknownFields)) return false;
+      return true;
+    }
+
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
+      }
+      int hash = 41;
+      hash = (19 * hash) + getDescriptor().hashCode();
+      hash = (37 * hash) + AGENT_VERSION_FIELD_NUMBER;
+      hash = (53 * hash) + getAgentVersion().hashCode();
+      hash = (37 * hash) + DESCRIPTION_FIELD_NUMBER;
+      hash = (53 * hash) + getDescription().hashCode();
+      if (hasCreateTime()) {
+        hash = (37 * hash) + CREATE_TIME_FIELD_NUMBER;
+        hash = (53 * hash) + getCreateTime().hashCode();
+      }
+      hash = (29 * hash) + unknownFields.hashCode();
+      memoizedHashCode = hash;
+      return hash;
+    }
+
+    public static com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry parseFrom(
+        java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry parseFrom(
+        java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry parseFrom(
+        byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry parseFrom(
+        byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry parseFrom(
+        java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry parseFrom(
+        java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry parseDelimitedFrom(
+        java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry parseDelimitedFrom(
+        java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry parseFrom(
+        com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry parseFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    @java.lang.Override
+    public Builder newBuilderForType() {
+      return newBuilder();
+    }
+
+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
+
+    public static Builder newBuilder(
+        com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry prototype) {
+      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    }
+
+    @java.lang.Override
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+    }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     *
+     *
+     * 
+     * Represents an environment history entry.
+     * 

+     *
+     * Protobuf type {@code google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry}
+     */
+    public static final class Builder
+        extends com.google.protobuf.GeneratedMessageV3.Builder
+        implements
+        // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry)
+        com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.EntryOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.dialogflow.v2beta1.EnvironmentProto
+            .internal_static_google_cloud_dialogflow_v2beta1_EnvironmentHistory_Entry_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.google.cloud.dialogflow.v2beta1.EnvironmentProto
+            .internal_static_google_cloud_dialogflow_v2beta1_EnvironmentHistory_Entry_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry.class,
+                com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry.Builder.class);
+      }
+
+      // Construct using com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+
+      private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+
+      private void maybeForceBuilderInitialization() {
+        if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+      }
+
+      @java.lang.Override
+      public Builder clear() {
+        super.clear();
+        agentVersion_ = "";
+
+        description_ = "";
+
+        if (createTimeBuilder_ == null) {
+          createTime_ = null;
+        } else {
+          createTime_ = null;
+          createTimeBuilder_ = null;
+        }
+        return this;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+        return com.google.cloud.dialogflow.v2beta1.EnvironmentProto
+            .internal_static_google_cloud_dialogflow_v2beta1_EnvironmentHistory_Entry_descriptor;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry
+          getDefaultInstanceForType() {
+        return com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry.getDefaultInstance();
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry build() {
+        com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry buildPartial() {
+        com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry result =
+            new com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry(this);
+        result.agentVersion_ = agentVersion_;
+        result.description_ = description_;
+        if (createTimeBuilder_ == null) {
+          result.createTime_ = createTime_;
+        } else {
+          result.createTime_ = createTimeBuilder_.build();
+        }
+        onBuilt();
+        return result;
+      }
+
+      @java.lang.Override
+      public Builder clone() {
+        return super.clone();
+      }
+
+      @java.lang.Override
+      public Builder setField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.setField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+        return super.clearField(field);
+      }
+
+      @java.lang.Override
+      public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+        return super.clearOneof(oneof);
+      }
+
+      @java.lang.Override
+      public Builder setRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          int index,
+          java.lang.Object value) {
+        return super.setRepeatedField(field, index, value);
+      }
+
+      @java.lang.Override
+      public Builder addRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.addRepeatedField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other instanceof com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry) {
+          return mergeFrom((com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry) other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry other) {
+        if (other
+            == com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry.getDefaultInstance())
+          return this;
+        if (!other.getAgentVersion().isEmpty()) {
+          agentVersion_ = other.agentVersion_;
+          onChanged();
+        }
+        if (!other.getDescription().isEmpty()) {
+          description_ = other.description_;
+          onChanged();
+        }
+        if (other.hasCreateTime()) {
+          mergeCreateTime(other.getCreateTime());
+        }
+        this.mergeUnknownFields(other.unknownFields);
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry parsedMessage = null;
+        try {
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage =
+              (com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry)
+                  e.getUnfinishedMessage();
+          throw e.unwrapIOException();
+        } finally {
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
+        return this;
+      }
+
+      private java.lang.Object agentVersion_ = "";
+      /**
+       *
+       *
+       * 
+       * The agent version loaded into this environment history entry.
+       * 

+       *
+       * string agent_version = 1;
+       *
+       * @return The agentVersion.
+       */
+      public java.lang.String getAgentVersion() {
+        java.lang.Object ref = agentVersion_;
+        if (!(ref instanceof java.lang.String)) {
+          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          agentVersion_ = s;
+          return s;
+        } else {
+          return (java.lang.String) ref;
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * The agent version loaded into this environment history entry.
+       * 

+       *
+       * string agent_version = 1;
+       *
+       * @return The bytes for agentVersion.
+       */
+      public com.google.protobuf.ByteString getAgentVersionBytes() {
+        java.lang.Object ref = agentVersion_;
+        if (ref instanceof String) {
+          com.google.protobuf.ByteString b =
+              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+          agentVersion_ = b;
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * The agent version loaded into this environment history entry.
+       * 

+       *
+       * string agent_version = 1;
+       *
+       * @param value The agentVersion to set.
+       * @return This builder for chaining.
+       */
+      public Builder setAgentVersion(java.lang.String value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+
+        agentVersion_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The agent version loaded into this environment history entry.
+       * 

+       *
+       * string agent_version = 1;
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearAgentVersion() {
+
+        agentVersion_ = getDefaultInstance().getAgentVersion();
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The agent version loaded into this environment history entry.
+       * 

+       *
+       * string agent_version = 1;
+       *
+       * @param value The bytes for agentVersion to set.
+       * @return This builder for chaining.
+       */
+      public Builder setAgentVersionBytes(com.google.protobuf.ByteString value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        checkByteStringIsUtf8(value);
+
+        agentVersion_ = value;
+        onChanged();
+        return this;
+      }
+
+      private java.lang.Object description_ = "";
+      /**
+       *
+       *
+       * 
+       * The developer-provided description for this environment history entry.
+       * 

+       *
+       * string description = 2;
+       *
+       * @return The description.
+       */
+      public java.lang.String getDescription() {
+        java.lang.Object ref = description_;
+        if (!(ref instanceof java.lang.String)) {
+          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          description_ = s;
+          return s;
+        } else {
+          return (java.lang.String) ref;
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * The developer-provided description for this environment history entry.
+       * 

+       *
+       * string description = 2;
+       *
+       * @return The bytes for description.
+       */
+      public com.google.protobuf.ByteString getDescriptionBytes() {
+        java.lang.Object ref = description_;
+        if (ref instanceof String) {
+          com.google.protobuf.ByteString b =
+              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+          description_ = b;
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * The developer-provided description for this environment history entry.
+       * 

+       *
+       * string description = 2;
+       *
+       * @param value The description to set.
+       * @return This builder for chaining.
+       */
+      public Builder setDescription(java.lang.String value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+
+        description_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The developer-provided description for this environment history entry.
+       * 

+       *
+       * string description = 2;
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearDescription() {
+
+        description_ = getDefaultInstance().getDescription();
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The developer-provided description for this environment history entry.
+       * 

+       *
+       * string description = 2;
+       *
+       * @param value The bytes for description to set.
+       * @return This builder for chaining.
+       */
+      public Builder setDescriptionBytes(com.google.protobuf.ByteString value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        checkByteStringIsUtf8(value);
+
+        description_ = value;
+        onChanged();
+        return this;
+      }
+
+      private com.google.protobuf.Timestamp createTime_;
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.protobuf.Timestamp,
+              com.google.protobuf.Timestamp.Builder,
+              com.google.protobuf.TimestampOrBuilder>
+          createTimeBuilder_;
+      /**
+       *
+       *
+       * 
+       * The creation time of this environment history entry.
+       * 

+       *
+       * .google.protobuf.Timestamp create_time = 3;
+       *
+       * @return Whether the createTime field is set.
+       */
+      public boolean hasCreateTime() {
+        return createTimeBuilder_ != null || createTime_ != null;
+      }
+      /**
+       *
+       *
+       * 
+       * The creation time of this environment history entry.
+       * 

+       *
+       * .google.protobuf.Timestamp create_time = 3;
+       *
+       * @return The createTime.
+       */
+      public com.google.protobuf.Timestamp getCreateTime() {
+        if (createTimeBuilder_ == null) {
+          return createTime_ == null
+              ? com.google.protobuf.Timestamp.getDefaultInstance()
+              : createTime_;
+        } else {
+          return createTimeBuilder_.getMessage();
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * The creation time of this environment history entry.
+       * 

+       *
+       * .google.protobuf.Timestamp create_time = 3;
+       */
+      public Builder setCreateTime(com.google.protobuf.Timestamp value) {
+        if (createTimeBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          createTime_ = value;
+          onChanged();
+        } else {
+          createTimeBuilder_.setMessage(value);
+        }
+
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The creation time of this environment history entry.
+       * 

+       *
+       * .google.protobuf.Timestamp create_time = 3;
+       */
+      public Builder setCreateTime(com.google.protobuf.Timestamp.Builder builderForValue) {
+        if (createTimeBuilder_ == null) {
+          createTime_ = builderForValue.build();
+          onChanged();
+        } else {
+          createTimeBuilder_.setMessage(builderForValue.build());
+        }
+
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The creation time of this environment history entry.
+       * 

+       *
+       * .google.protobuf.Timestamp create_time = 3;
+       */
+      public Builder mergeCreateTime(com.google.protobuf.Timestamp value) {
+        if (createTimeBuilder_ == null) {
+          if (createTime_ != null) {
+            createTime_ =
+                com.google.protobuf.Timestamp.newBuilder(createTime_)
+                    .mergeFrom(value)
+                    .buildPartial();
+          } else {
+            createTime_ = value;
+          }
+          onChanged();
+        } else {
+          createTimeBuilder_.mergeFrom(value);
+        }
+
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The creation time of this environment history entry.
+       * 

+       *
+       * .google.protobuf.Timestamp create_time = 3;
+       */
+      public Builder clearCreateTime() {
+        if (createTimeBuilder_ == null) {
+          createTime_ = null;
+          onChanged();
+        } else {
+          createTime_ = null;
+          createTimeBuilder_ = null;
+        }
+
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The creation time of this environment history entry.
+       * 

+       *
+       * .google.protobuf.Timestamp create_time = 3;
+       */
+      public com.google.protobuf.Timestamp.Builder getCreateTimeBuilder() {
+
+        onChanged();
+        return getCreateTimeFieldBuilder().getBuilder();
+      }
+      /**
+       *
+       *
+       * 
+       * The creation time of this environment history entry.
+       * 

+       *
+       * .google.protobuf.Timestamp create_time = 3;
+       */
+      public com.google.protobuf.TimestampOrBuilder getCreateTimeOrBuilder() {
+        if (createTimeBuilder_ != null) {
+          return createTimeBuilder_.getMessageOrBuilder();
+        } else {
+          return createTime_ == null
+              ? com.google.protobuf.Timestamp.getDefaultInstance()
+              : createTime_;
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * The creation time of this environment history entry.
+       * 

+       *
+       * .google.protobuf.Timestamp create_time = 3;
+       */
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.protobuf.Timestamp,
+              com.google.protobuf.Timestamp.Builder,
+              com.google.protobuf.TimestampOrBuilder>
+          getCreateTimeFieldBuilder() {
+        if (createTimeBuilder_ == null) {
+          createTimeBuilder_ =
+              new com.google.protobuf.SingleFieldBuilderV3<
+                  com.google.protobuf.Timestamp,
+                  com.google.protobuf.Timestamp.Builder,
+                  com.google.protobuf.TimestampOrBuilder>(
+                  getCreateTime(), getParentForChildren(), isClean());
+          createTime_ = null;
+        }
+        return createTimeBuilder_;
+      }
+
+      @java.lang.Override
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
+
+      @java.lang.Override
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
+      }
+
+      // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry)
+    }
+
+    // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry)
+    private static final com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry
+        DEFAULT_INSTANCE;
+
+    static {
+      DEFAULT_INSTANCE = new com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry();
+    }
+
+    public static com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry
+        getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser PARSER =
+        new com.google.protobuf.AbstractParser() {
+          @java.lang.Override
+          public Entry parsePartialFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+            return new Entry(input, extensionRegistry);
+          }
+        };
+
+    public static com.google.protobuf.Parser parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry
+        getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+  }
+
+  public static final int PARENT_FIELD_NUMBER = 1;
+  private volatile java.lang.Object parent_;
+  /**
+   *
+   *
+   * 
+   * Output only. The name of the environment this history is for.
+   * Supported formats:
+   * - `projects/<Project Number / ID>/agent/environments/<Environment ID>`
+   * - `projects/<Project Number / ID>/locations/<Location
+   *    ID>/agent/environments/<Environment ID>`
+   * 

+   *
+   * string parent = 1 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   *
+   * @return The parent.
+   */
+  @java.lang.Override
+  public java.lang.String getParent() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      parent_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * 
+   * Output only. The name of the environment this history is for.
+   * Supported formats:
+   * - `projects/<Project Number / ID>/agent/environments/<Environment ID>`
+   * - `projects/<Project Number / ID>/locations/<Location
+   *    ID>/agent/environments/<Environment ID>`
+   * 

+   *
+   * string parent = 1 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   *
+   * @return The bytes for parent.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getParentBytes() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      parent_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int ENTRIES_FIELD_NUMBER = 2;
+  private java.util.List entries_;
+  /**
+   *
+   *
+   * 
+   * Output only. The list of agent environments. There will be a maximum number of items
+   * returned based on the page_size field in the request.
+   * 

+   *
+   * 
+   * repeated .google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry entries = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * 
+   */
+  @java.lang.Override
+  public java.util.List
+      getEntriesList() {
+    return entries_;
+  }
+  /**
+   *
+   *
+   * 
+   * Output only. The list of agent environments. There will be a maximum number of items
+   * returned based on the page_size field in the request.
+   * 

+   *
+   * 
+   * repeated .google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry entries = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * 
+   */
+  @java.lang.Override
+  public java.util.List<
+          ? extends com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.EntryOrBuilder>
+      getEntriesOrBuilderList() {
+    return entries_;
+  }
+  /**
+   *
+   *
+   * 
+   * Output only. The list of agent environments. There will be a maximum number of items
+   * returned based on the page_size field in the request.
+   * 

+   *
+   * 
+   * repeated .google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry entries = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * 
+   */
+  @java.lang.Override
+  public int getEntriesCount() {
+    return entries_.size();
+  }
+  /**
+   *
+   *
+   * 
+   * Output only. The list of agent environments. There will be a maximum number of items
+   * returned based on the page_size field in the request.
+   * 

+   *
+   * 
+   * repeated .google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry entries = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * 
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry getEntries(int index) {
+    return entries_.get(index);
+  }
+  /**
+   *
+   *
+   * 
+   * Output only. The list of agent environments. There will be a maximum number of items
+   * returned based on the page_size field in the request.
+   * 

+   *
+   * 
+   * repeated .google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry entries = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * 
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.EntryOrBuilder getEntriesOrBuilder(
+      int index) {
+    return entries_.get(index);
+  }
+
+  public static final int NEXT_PAGE_TOKEN_FIELD_NUMBER = 3;
+  private volatile java.lang.Object nextPageToken_;
+  /**
+   *
+   *
+   * 
+   * Output only. Token to retrieve the next page of results, or empty if there are no
+   * more results in the list.
+   * 

+   *
+   * string next_page_token = 3 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   *
+   * @return The nextPageToken.
+   */
+  @java.lang.Override
+  public java.lang.String getNextPageToken() {
+    java.lang.Object ref = nextPageToken_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      nextPageToken_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * 
+   * Output only. Token to retrieve the next page of results, or empty if there are no
+   * more results in the list.
+   * 

+   *
+   * string next_page_token = 3 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   *
+   * @return The bytes for nextPageToken.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNextPageTokenBytes() {
+    java.lang.Object ref = nextPageToken_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      nextPageToken_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getParentBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, parent_);
+    }
+    for (int i = 0; i < entries_.size(); i++) {
+      output.writeMessage(2, entries_.get(i));
+    }
+    if (!getNextPageTokenBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 3, nextPageToken_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getParentBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, parent_);
+    }
+    for (int i = 0; i < entries_.size(); i++) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, entries_.get(i));
+    }
+    if (!getNextPageTokenBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, nextPageToken_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.v2beta1.EnvironmentHistory)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.v2beta1.EnvironmentHistory other =
+        (com.google.cloud.dialogflow.v2beta1.EnvironmentHistory) obj;
+
+    if (!getParent().equals(other.getParent())) return false;
+    if (!getEntriesList().equals(other.getEntriesList())) return false;
+    if (!getNextPageToken().equals(other.getNextPageToken())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + PARENT_FIELD_NUMBER;
+    hash = (53 * hash) + getParent().hashCode();
+    if (getEntriesCount() > 0) {
+      hash = (37 * hash) + ENTRIES_FIELD_NUMBER;
+      hash = (53 * hash) + getEntriesList().hashCode();
+    }
+    hash = (37 * hash) + NEXT_PAGE_TOKEN_FIELD_NUMBER;
+    hash = (53 * hash) + getNextPageToken().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.EnvironmentHistory parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.EnvironmentHistory parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.EnvironmentHistory parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.EnvironmentHistory parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.EnvironmentHistory parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.EnvironmentHistory parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.EnvironmentHistory parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.EnvironmentHistory parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.EnvironmentHistory parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.EnvironmentHistory parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.EnvironmentHistory parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.EnvironmentHistory parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.v2beta1.EnvironmentHistory prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * 
+   * The response message for [Environments.GetEnvironmentHistory][google.cloud.dialogflow.v2beta1.Environments.GetEnvironmentHistory].
+   * 

+   *
+   * Protobuf type {@code google.cloud.dialogflow.v2beta1.EnvironmentHistory}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.v2beta1.EnvironmentHistory)
+      com.google.cloud.dialogflow.v2beta1.EnvironmentHistoryOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.v2beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_v2beta1_EnvironmentHistory_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.v2beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_v2beta1_EnvironmentHistory_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.class,
+              com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
+        getEntriesFieldBuilder();
+      }
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      parent_ = "";
+
+      if (entriesBuilder_ == null) {
+        entries_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+      } else {
+        entriesBuilder_.clear();
+      }
+      nextPageToken_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.v2beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_v2beta1_EnvironmentHistory_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.EnvironmentHistory getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.EnvironmentHistory build() {
+      com.google.cloud.dialogflow.v2beta1.EnvironmentHistory result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.EnvironmentHistory buildPartial() {
+      com.google.cloud.dialogflow.v2beta1.EnvironmentHistory result =
+          new com.google.cloud.dialogflow.v2beta1.EnvironmentHistory(this);
+      int from_bitField0_ = bitField0_;
+      result.parent_ = parent_;
+      if (entriesBuilder_ == null) {
+        if (((bitField0_ & 0x00000001) != 0)) {
+          entries_ = java.util.Collections.unmodifiableList(entries_);
+          bitField0_ = (bitField0_ & ~0x00000001);
+        }
+        result.entries_ = entries_;
+      } else {
+        result.entries_ = entriesBuilder_.build();
+      }
+      result.nextPageToken_ = nextPageToken_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.v2beta1.EnvironmentHistory) {
+        return mergeFrom((com.google.cloud.dialogflow.v2beta1.EnvironmentHistory) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.v2beta1.EnvironmentHistory other) {
+      if (other == com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.getDefaultInstance())
+        return this;
+      if (!other.getParent().isEmpty()) {
+        parent_ = other.parent_;
+        onChanged();
+      }
+      if (entriesBuilder_ == null) {
+        if (!other.entries_.isEmpty()) {
+          if (entries_.isEmpty()) {
+            entries_ = other.entries_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+          } else {
+            ensureEntriesIsMutable();
+            entries_.addAll(other.entries_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.entries_.isEmpty()) {
+          if (entriesBuilder_.isEmpty()) {
+            entriesBuilder_.dispose();
+            entriesBuilder_ = null;
+            entries_ = other.entries_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+            entriesBuilder_ =
+                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                    ? getEntriesFieldBuilder()
+                    : null;
+          } else {
+            entriesBuilder_.addAllMessages(other.entries_);
+          }
+        }
+      }
+      if (!other.getNextPageToken().isEmpty()) {
+        nextPageToken_ = other.nextPageToken_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.v2beta1.EnvironmentHistory parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.v2beta1.EnvironmentHistory) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private int bitField0_;
+
+    private java.lang.Object parent_ = "";
+    /**
+     *
+     *
+     * 
+     * Output only. The name of the environment this history is for.
+     * Supported formats:
+     * - `projects/<Project Number / ID>/agent/environments/<Environment ID>`
+     * - `projects/<Project Number / ID>/locations/<Location
+     *    ID>/agent/environments/<Environment ID>`
+     * 

+     *
+     * string parent = 1 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     *
+     * @return The parent.
+     */
+    public java.lang.String getParent() {
+      java.lang.Object ref = parent_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        parent_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Output only. The name of the environment this history is for.
+     * Supported formats:
+     * - `projects/<Project Number / ID>/agent/environments/<Environment ID>`
+     * - `projects/<Project Number / ID>/locations/<Location
+     *    ID>/agent/environments/<Environment ID>`
+     * 

+     *
+     * string parent = 1 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     *
+     * @return The bytes for parent.
+     */
+    public com.google.protobuf.ByteString getParentBytes() {
+      java.lang.Object ref = parent_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        parent_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Output only. The name of the environment this history is for.
+     * Supported formats:
+     * - `projects/<Project Number / ID>/agent/environments/<Environment ID>`
+     * - `projects/<Project Number / ID>/locations/<Location
+     *    ID>/agent/environments/<Environment ID>`
+     * 

+     *
+     * string parent = 1 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     *
+     * @param value The parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParent(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Output only. The name of the environment this history is for.
+     * Supported formats:
+     * - `projects/<Project Number / ID>/agent/environments/<Environment ID>`
+     * - `projects/<Project Number / ID>/locations/<Location
+     *    ID>/agent/environments/<Environment ID>`
+     * 

+     *
+     * string parent = 1 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearParent() {
+
+      parent_ = getDefaultInstance().getParent();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Output only. The name of the environment this history is for.
+     * Supported formats:
+     * - `projects/<Project Number / ID>/agent/environments/<Environment ID>`
+     * - `projects/<Project Number / ID>/locations/<Location
+     *    ID>/agent/environments/<Environment ID>`
+     * 

+     *
+     * string parent = 1 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     *
+     * @param value The bytes for parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParentBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.util.List entries_ =
+        java.util.Collections.emptyList();
+
+    private void ensureEntriesIsMutable() {
+      if (!((bitField0_ & 0x00000001) != 0)) {
+        entries_ =
+            new java.util.ArrayList(
+                entries_);
+        bitField0_ |= 0x00000001;
+      }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry,
+            com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry.Builder,
+            com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.EntryOrBuilder>
+        entriesBuilder_;
+
+    /**
+     *
+     *
+     * 
+     * Output only. The list of agent environments. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * 

+     *
+     * 
+     * repeated .google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry entries = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * 
+     */
+    public java.util.List
+        getEntriesList() {
+      if (entriesBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(entries_);
+      } else {
+        return entriesBuilder_.getMessageList();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Output only. The list of agent environments. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * 

+     *
+     * 
+     * repeated .google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry entries = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * 
+     */
+    public int getEntriesCount() {
+      if (entriesBuilder_ == null) {
+        return entries_.size();
+      } else {
+        return entriesBuilder_.getCount();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Output only. The list of agent environments. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * 

+     *
+     * 
+     * repeated .google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry entries = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * 
+     */
+    public com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry getEntries(int index) {
+      if (entriesBuilder_ == null) {
+        return entries_.get(index);
+      } else {
+        return entriesBuilder_.getMessage(index);
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Output only. The list of agent environments. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * 

+     *
+     * 
+     * repeated .google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry entries = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * 
+     */
+    public Builder setEntries(
+        int index, com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry value) {
+      if (entriesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureEntriesIsMutable();
+        entries_.set(index, value);
+        onChanged();
+      } else {
+        entriesBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Output only. The list of agent environments. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * 

+     *
+     * 
+     * repeated .google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry entries = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * 
+     */
+    public Builder setEntries(
+        int index,
+        com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry.Builder builderForValue) {
+      if (entriesBuilder_ == null) {
+        ensureEntriesIsMutable();
+        entries_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        entriesBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Output only. The list of agent environments. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * 

+     *
+     * 
+     * repeated .google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry entries = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * 
+     */
+    public Builder addEntries(com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry value) {
+      if (entriesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureEntriesIsMutable();
+        entries_.add(value);
+        onChanged();
+      } else {
+        entriesBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Output only. The list of agent environments. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * 

+     *
+     * 
+     * repeated .google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry entries = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * 
+     */
+    public Builder addEntries(
+        int index, com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry value) {
+      if (entriesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureEntriesIsMutable();
+        entries_.add(index, value);
+        onChanged();
+      } else {
+        entriesBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Output only. The list of agent environments. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * 

+     *
+     * 
+     * repeated .google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry entries = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * 
+     */
+    public Builder addEntries(
+        com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry.Builder builderForValue) {
+      if (entriesBuilder_ == null) {
+        ensureEntriesIsMutable();
+        entries_.add(builderForValue.build());
+        onChanged();
+      } else {
+        entriesBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Output only. The list of agent environments. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * 

+     *
+     * 
+     * repeated .google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry entries = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * 
+     */
+    public Builder addEntries(
+        int index,
+        com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry.Builder builderForValue) {
+      if (entriesBuilder_ == null) {
+        ensureEntriesIsMutable();
+        entries_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        entriesBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Output only. The list of agent environments. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * 

+     *
+     * 
+     * repeated .google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry entries = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * 
+     */
+    public Builder addAllEntries(
+        java.lang.Iterable
+            values) {
+      if (entriesBuilder_ == null) {
+        ensureEntriesIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, entries_);
+        onChanged();
+      } else {
+        entriesBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Output only. The list of agent environments. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * 

+     *
+     * 
+     * repeated .google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry entries = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * 
+     */
+    public Builder clearEntries() {
+      if (entriesBuilder_ == null) {
+        entries_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+        onChanged();
+      } else {
+        entriesBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Output only. The list of agent environments. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * 

+     *
+     * 
+     * repeated .google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry entries = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * 
+     */
+    public Builder removeEntries(int index) {
+      if (entriesBuilder_ == null) {
+        ensureEntriesIsMutable();
+        entries_.remove(index);
+        onChanged();
+      } else {
+        entriesBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Output only. The list of agent environments. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * 

+     *
+     * 
+     * repeated .google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry entries = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * 
+     */
+    public com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry.Builder getEntriesBuilder(
+        int index) {
+      return getEntriesFieldBuilder().getBuilder(index);
+    }
+    /**
+     *
+     *
+     * 
+     * Output only. The list of agent environments. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * 

+     *
+     * 
+     * repeated .google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry entries = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * 
+     */
+    public com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.EntryOrBuilder
+        getEntriesOrBuilder(int index) {
+      if (entriesBuilder_ == null) {
+        return entries_.get(index);
+      } else {
+        return entriesBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Output only. The list of agent environments. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * 

+     *
+     * 
+     * repeated .google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry entries = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * 
+     */
+    public java.util.List<
+            ? extends com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.EntryOrBuilder>
+        getEntriesOrBuilderList() {
+      if (entriesBuilder_ != null) {
+        return entriesBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(entries_);
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Output only. The list of agent environments. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * 

+     *
+     * 
+     * repeated .google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry entries = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * 
+     */
+    public com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry.Builder
+        addEntriesBuilder() {
+      return getEntriesFieldBuilder()
+          .addBuilder(
+              com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * 
+     * Output only. The list of agent environments. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * 

+     *
+     * 
+     * repeated .google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry entries = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * 
+     */
+    public com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry.Builder addEntriesBuilder(
+        int index) {
+      return getEntriesFieldBuilder()
+          .addBuilder(
+              index,
+              com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * 
+     * Output only. The list of agent environments. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * 

+     *
+     * 
+     * repeated .google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry entries = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * 
+     */
+    public java.util.List
+        getEntriesBuilderList() {
+      return getEntriesFieldBuilder().getBuilderList();
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry,
+            com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry.Builder,
+            com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.EntryOrBuilder>
+        getEntriesFieldBuilder() {
+      if (entriesBuilder_ == null) {
+        entriesBuilder_ =
+            new com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry,
+                com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry.Builder,
+                com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.EntryOrBuilder>(
+                entries_, ((bitField0_ & 0x00000001) != 0), getParentForChildren(), isClean());
+        entries_ = null;
+      }
+      return entriesBuilder_;
+    }
+
+    private java.lang.Object nextPageToken_ = "";
+    /**
+     *
+     *
+     * 
+     * Output only. Token to retrieve the next page of results, or empty if there are no
+     * more results in the list.
+     * 

+     *
+     * string next_page_token = 3 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     *
+     * @return The nextPageToken.
+     */
+    public java.lang.String getNextPageToken() {
+      java.lang.Object ref = nextPageToken_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        nextPageToken_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Output only. Token to retrieve the next page of results, or empty if there are no
+     * more results in the list.
+     * 

+     *
+     * string next_page_token = 3 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     *
+     * @return The bytes for nextPageToken.
+     */
+    public com.google.protobuf.ByteString getNextPageTokenBytes() {
+      java.lang.Object ref = nextPageToken_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        nextPageToken_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Output only. Token to retrieve the next page of results, or empty if there are no
+     * more results in the list.
+     * 

+     *
+     * string next_page_token = 3 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     *
+     * @param value The nextPageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNextPageToken(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      nextPageToken_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Output only. Token to retrieve the next page of results, or empty if there are no
+     * more results in the list.
+     * 

+     *
+     * string next_page_token = 3 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearNextPageToken() {
+
+      nextPageToken_ = getDefaultInstance().getNextPageToken();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Output only. Token to retrieve the next page of results, or empty if there are no
+     * more results in the list.
+     * 

+     *
+     * string next_page_token = 3 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     *
+     * @param value The bytes for nextPageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNextPageTokenBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      nextPageToken_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.v2beta1.EnvironmentHistory)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.v2beta1.EnvironmentHistory)
+  private static final com.google.cloud.dialogflow.v2beta1.EnvironmentHistory DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.v2beta1.EnvironmentHistory();
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.EnvironmentHistory getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser PARSER =
+      new com.google.protobuf.AbstractParser() {
+        @java.lang.Override
+        public EnvironmentHistory parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new EnvironmentHistory(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.v2beta1.EnvironmentHistory getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/EnvironmentHistoryOrBuilder.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/EnvironmentHistoryOrBuilder.java
new file mode 100644
index 000000000..844a01d08
--- /dev/null
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/EnvironmentHistoryOrBuilder.java
@@ -0,0 +1,153 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/v2beta1/environment.proto
+
+package com.google.cloud.dialogflow.v2beta1;
+
+public interface EnvironmentHistoryOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.v2beta1.EnvironmentHistory)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * 
+   * Output only. The name of the environment this history is for.
+   * Supported formats:
+   * - `projects/<Project Number / ID>/agent/environments/<Environment ID>`
+   * - `projects/<Project Number / ID>/locations/<Location
+   *    ID>/agent/environments/<Environment ID>`
+   * 

+   *
+   * string parent = 1 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   *
+   * @return The parent.
+   */
+  java.lang.String getParent();
+  /**
+   *
+   *
+   * 
+   * Output only. The name of the environment this history is for.
+   * Supported formats:
+   * - `projects/<Project Number / ID>/agent/environments/<Environment ID>`
+   * - `projects/<Project Number / ID>/locations/<Location
+   *    ID>/agent/environments/<Environment ID>`
+   * 

+   *
+   * string parent = 1 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   *
+   * @return The bytes for parent.
+   */
+  com.google.protobuf.ByteString getParentBytes();
+
+  /**
+   *
+   *
+   * 
+   * Output only. The list of agent environments. There will be a maximum number of items
+   * returned based on the page_size field in the request.
+   * 

+   *
+   * 
+   * repeated .google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry entries = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * 
+   */
+  java.util.List getEntriesList();
+  /**
+   *
+   *
+   * 
+   * Output only. The list of agent environments. There will be a maximum number of items
+   * returned based on the page_size field in the request.
+   * 

+   *
+   * 
+   * repeated .google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry entries = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * 
+   */
+  com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry getEntries(int index);
+  /**
+   *
+   *
+   * 
+   * Output only. The list of agent environments. There will be a maximum number of items
+   * returned based on the page_size field in the request.
+   * 

+   *
+   * 
+   * repeated .google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry entries = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * 
+   */
+  int getEntriesCount();
+  /**
+   *
+   *
+   * 
+   * Output only. The list of agent environments. There will be a maximum number of items
+   * returned based on the page_size field in the request.
+   * 

+   *
+   * 
+   * repeated .google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry entries = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * 
+   */
+  java.util.List
+      getEntriesOrBuilderList();
+  /**
+   *
+   *
+   * 
+   * Output only. The list of agent environments. There will be a maximum number of items
+   * returned based on the page_size field in the request.
+   * 

+   *
+   * 
+   * repeated .google.cloud.dialogflow.v2beta1.EnvironmentHistory.Entry entries = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * 
+   */
+  com.google.cloud.dialogflow.v2beta1.EnvironmentHistory.EntryOrBuilder getEntriesOrBuilder(
+      int index);
+
+  /**
+   *
+   *
+   * 
+   * Output only. Token to retrieve the next page of results, or empty if there are no
+   * more results in the list.
+   * 

+   *
+   * string next_page_token = 3 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   *
+   * @return The nextPageToken.
+   */
+  java.lang.String getNextPageToken();
+  /**
+   *
+   *
+   * 
+   * Output only. Token to retrieve the next page of results, or empty if there are no
+   * more results in the list.
+   * 

+   *
+   * string next_page_token = 3 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   *
+   * @return The bytes for nextPageToken.
+   */
+  com.google.protobuf.ByteString getNextPageTokenBytes();
+}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/EnvironmentOrBuilder.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/EnvironmentOrBuilder.java
index 1a67f6d52..ac090fdba 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/EnvironmentOrBuilder.java
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/EnvironmentOrBuilder.java
@@ -187,4 +187,87 @@ public interface EnvironmentOrBuilder
    * 
    */
   com.google.protobuf.TimestampOrBuilder getUpdateTimeOrBuilder();
+
+  /**
+   *
+   *
+   * 
+   * Optional. Text to speech settings for this environment.
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.TextToSpeechSettings text_to_speech_settings = 7 [(.google.api.field_behavior) = OPTIONAL];
+   * 
+   *
+   * @return Whether the textToSpeechSettings field is set.
+   */
+  boolean hasTextToSpeechSettings();
+  /**
+   *
+   *
+   * 
+   * Optional. Text to speech settings for this environment.
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.TextToSpeechSettings text_to_speech_settings = 7 [(.google.api.field_behavior) = OPTIONAL];
+   * 
+   *
+   * @return The textToSpeechSettings.
+   */
+  com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings getTextToSpeechSettings();
+  /**
+   *
+   *
+   * 
+   * Optional. Text to speech settings for this environment.
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.TextToSpeechSettings text_to_speech_settings = 7 [(.google.api.field_behavior) = OPTIONAL];
+   * 
+   */
+  com.google.cloud.dialogflow.v2beta1.TextToSpeechSettingsOrBuilder
+      getTextToSpeechSettingsOrBuilder();
+
+  /**
+   *
+   *
+   * 
+   * Optional. The fulfillment settings to use for this environment.
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.Fulfillment fulfillment = 8 [(.google.api.field_behavior) = OPTIONAL];
+   * 
+   *
+   * @return Whether the fulfillment field is set.
+   */
+  boolean hasFulfillment();
+  /**
+   *
+   *
+   * 
+   * Optional. The fulfillment settings to use for this environment.
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.Fulfillment fulfillment = 8 [(.google.api.field_behavior) = OPTIONAL];
+   * 
+   *
+   * @return The fulfillment.
+   */
+  com.google.cloud.dialogflow.v2beta1.Fulfillment getFulfillment();
+  /**
+   *
+   *
+   * 
+   * Optional. The fulfillment settings to use for this environment.
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.Fulfillment fulfillment = 8 [(.google.api.field_behavior) = OPTIONAL];
+   * 
+   */
+  com.google.cloud.dialogflow.v2beta1.FulfillmentOrBuilder getFulfillmentOrBuilder();
 }
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/EnvironmentProto.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/EnvironmentProto.java
index c338e78d8..bb9aa1b7e 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/EnvironmentProto.java
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/EnvironmentProto.java
@@ -31,6 +31,14 @@ public static void registerAllExtensions(com.google.protobuf.ExtensionRegistry r
       internal_static_google_cloud_dialogflow_v2beta1_Environment_descriptor;
   static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
       internal_static_google_cloud_dialogflow_v2beta1_Environment_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_v2beta1_TextToSpeechSettings_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_v2beta1_TextToSpeechSettings_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_v2beta1_TextToSpeechSettings_SynthesizeSpeechConfigsEntry_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_v2beta1_TextToSpeechSettings_SynthesizeSpeechConfigsEntry_fieldAccessorTable;
   static final com.google.protobuf.Descriptors.Descriptor
       internal_static_google_cloud_dialogflow_v2beta1_ListEnvironmentsRequest_descriptor;
   static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
@@ -39,6 +47,34 @@ public static void registerAllExtensions(com.google.protobuf.ExtensionRegistry r
       internal_static_google_cloud_dialogflow_v2beta1_ListEnvironmentsResponse_descriptor;
   static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
       internal_static_google_cloud_dialogflow_v2beta1_ListEnvironmentsResponse_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_v2beta1_GetEnvironmentRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_v2beta1_GetEnvironmentRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_v2beta1_CreateEnvironmentRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_v2beta1_CreateEnvironmentRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_v2beta1_UpdateEnvironmentRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_v2beta1_UpdateEnvironmentRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_v2beta1_DeleteEnvironmentRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_v2beta1_DeleteEnvironmentRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_v2beta1_GetEnvironmentHistoryRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_v2beta1_GetEnvironmentHistoryRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_v2beta1_EnvironmentHistory_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_v2beta1_EnvironmentHistory_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_v2beta1_EnvironmentHistory_Entry_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_v2beta1_EnvironmentHistory_Entry_fieldAccessorTable;
 
   public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
     return descriptor;
@@ -54,42 +90,116 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "le/api/client.proto\032\037google/api/field_be"
           + "havior.proto\032\031google/api/resource.proto\032"
           + "2google/cloud/dialogflow/v2beta1/audio_c"
-          + "onfig.proto\032\033google/protobuf/empty.proto"
-          + "\032 google/protobuf/field_mask.proto\032\037goog"
-          + "le/protobuf/timestamp.proto\"\310\003\n\013Environm"
-          + "ent\022\021\n\004name\030\001 \001(\tB\003\340A\003\022\030\n\013description\030\002 "
-          + "\001(\tB\003\340A\001\022\032\n\ragent_version\030\003 \001(\tB\003\340A\001\022F\n\005"
-          + "state\030\004 \001(\01622.google.cloud.dialogflow.v2"
-          + "beta1.Environment.StateB\003\340A\003\0224\n\013update_t"
-          + "ime\030\005 \001(\0132\032.google.protobuf.TimestampB\003\340"
-          + "A\003\"E\n\005State\022\025\n\021STATE_UNSPECIFIED\020\000\022\013\n\007ST"
-          + "OPPED\020\001\022\013\n\007LOADING\020\002\022\013\n\007RUNNING\020\003:\252\001\352A\246\001"
-          + "\n%dialogflow.googleapis.com/Environment\022"
-          + "3projects/{project}/agent/environments/{"
-          + "environment}\022Hprojects/{project}/locatio"
-          + "ns/{location}/agent/environments/{enviro"
-          + "nment}\"\211\001\n\027ListEnvironmentsRequest\022=\n\006pa"
-          + "rent\030\001 \001(\tB-\340A\002\372A\'\022%dialogflow.googleapi"
-          + "s.com/Environment\022\026\n\tpage_size\030\002 \001(\005B\003\340A"
-          + "\001\022\027\n\npage_token\030\003 \001(\tB\003\340A\001\"w\n\030ListEnviro"
-          + "nmentsResponse\022B\n\014environments\030\001 \003(\0132,.g"
-          + "oogle.cloud.dialogflow.v2beta1.Environme"
-          + "nt\022\027\n\017next_page_token\030\002 \001(\t2\223\003\n\014Environm"
-          + "ents\022\210\002\n\020ListEnvironments\0228.google.cloud"
-          + ".dialogflow.v2beta1.ListEnvironmentsRequ"
-          + "est\0329.google.cloud.dialogflow.v2beta1.Li"
-          + "stEnvironmentsResponse\"\177\202\323\344\223\002p\022//v2beta1"
-          + "/{parent=projects/*/agent}/environmentsZ"
-          + "=\022;/v2beta1/{parent=projects/*/locations"
-          + "/*/agent}/environments\332A\006parent\032x\312A\031dial"
-          + "ogflow.googleapis.com\322AYhttps://www.goog"
-          + "leapis.com/auth/cloud-platform,https://w"
-          + "ww.googleapis.com/auth/dialogflowB\256\001\n#co"
-          + "m.google.cloud.dialogflow.v2beta1B\020Envir"
-          + "onmentProtoP\001ZIgoogle.golang.org/genprot"
-          + "o/googleapis/cloud/dialogflow/v2beta1;di"
-          + "alogflow\370\001\001\242\002\002DF\252\002\037Google.Cloud.Dialogfl"
-          + "ow.V2beta1b\006proto3"
+          + "onfig.proto\0321google/cloud/dialogflow/v2b"
+          + "eta1/fulfillment.proto\032\033google/protobuf/"
+          + "empty.proto\032 google/protobuf/field_mask."
+          + "proto\032\037google/protobuf/timestamp.proto\"\355"
+          + "\004\n\013Environment\022\021\n\004name\030\001 \001(\tB\003\340A\003\022\030\n\013des"
+          + "cription\030\002 \001(\tB\003\340A\001\022\032\n\ragent_version\030\003 \001"
+          + "(\tB\003\340A\001\022F\n\005state\030\004 \001(\01622.google.cloud.di"
+          + "alogflow.v2beta1.Environment.StateB\003\340A\003\022"
+          + "4\n\013update_time\030\005 \001(\0132\032.google.protobuf.T"
+          + "imestampB\003\340A\003\022[\n\027text_to_speech_settings"
+          + "\030\007 \001(\01325.google.cloud.dialogflow.v2beta1"
+          + ".TextToSpeechSettingsB\003\340A\001\022F\n\013fulfillmen"
+          + "t\030\010 \001(\0132,.google.cloud.dialogflow.v2beta"
+          + "1.FulfillmentB\003\340A\001\"E\n\005State\022\025\n\021STATE_UNS"
+          + "PECIFIED\020\000\022\013\n\007STOPPED\020\001\022\013\n\007LOADING\020\002\022\013\n\007"
+          + "RUNNING\020\003:\252\001\352A\246\001\n%dialogflow.googleapis."
+          + "com/Environment\0223projects/{project}/agen"
+          + "t/environments/{environment}\022Hprojects/{"
+          + "project}/locations/{location}/agent/envi"
+          + "ronments/{environment}\"\251\003\n\024TextToSpeechS"
+          + "ettings\022\"\n\025enable_text_to_speech\030\001 \001(\010B\003"
+          + "\340A\001\022X\n\025output_audio_encoding\030\002 \001(\01624.goo"
+          + "gle.cloud.dialogflow.v2beta1.OutputAudio"
+          + "EncodingB\003\340A\002\022\036\n\021sample_rate_hertz\030\003 \001(\005"
+          + "B\003\340A\001\022z\n\031synthesize_speech_configs\030\004 \003(\013"
+          + "2R.google.cloud.dialogflow.v2beta1.TextT"
+          + "oSpeechSettings.SynthesizeSpeechConfigsE"
+          + "ntryB\003\340A\001\032w\n\034SynthesizeSpeechConfigsEntr"
+          + "y\022\013\n\003key\030\001 \001(\t\022F\n\005value\030\002 \001(\01327.google.c"
+          + "loud.dialogflow.v2beta1.SynthesizeSpeech"
+          + "Config:\0028\001\"\211\001\n\027ListEnvironmentsRequest\022="
+          + "\n\006parent\030\001 \001(\tB-\340A\002\372A\'\022%dialogflow.googl"
+          + "eapis.com/Environment\022\026\n\tpage_size\030\002 \001(\005"
+          + "B\003\340A\001\022\027\n\npage_token\030\003 \001(\tB\003\340A\001\"w\n\030ListEn"
+          + "vironmentsResponse\022B\n\014environments\030\001 \003(\013"
+          + "2,.google.cloud.dialogflow.v2beta1.Envir"
+          + "onment\022\027\n\017next_page_token\030\002 \001(\t\"T\n\025GetEn"
+          + "vironmentRequest\022;\n\004name\030\001 \001(\tB-\340A\002\372A\'\n%"
+          + "dialogflow.googleapis.com/Environment\"\276\001"
+          + "\n\030CreateEnvironmentRequest\022=\n\006parent\030\001 \001"
+          + "(\tB-\340A\002\372A\'\022%dialogflow.googleapis.com/En"
+          + "vironment\022F\n\013environment\030\002 \001(\0132,.google."
+          + "cloud.dialogflow.v2beta1.EnvironmentB\003\340A"
+          + "\002\022\033\n\016environment_id\030\003 \001(\tB\003\340A\002\"\316\001\n\030Updat"
+          + "eEnvironmentRequest\022F\n\013environment\030\001 \001(\013"
+          + "2,.google.cloud.dialogflow.v2beta1.Envir"
+          + "onmentB\003\340A\002\0224\n\013update_mask\030\002 \001(\0132\032.googl"
+          + "e.protobuf.FieldMaskB\003\340A\002\0224\n\'allow_load_"
+          + "to_draft_and_discard_changes\030\003 \001(\010B\003\340A\001\""
+          + "W\n\030DeleteEnvironmentRequest\022;\n\004name\030\001 \001("
+          + "\tB-\340A\002\372A\'\n%dialogflow.googleapis.com/Env"
+          + "ironment\"\216\001\n\034GetEnvironmentHistoryReques"
+          + "t\022=\n\006parent\030\001 \001(\tB-\340A\002\372A\'\n%dialogflow.go"
+          + "ogleapis.com/Environment\022\026\n\tpage_size\030\002 "
+          + "\001(\005B\003\340A\001\022\027\n\npage_token\030\003 \001(\tB\003\340A\001\"\376\001\n\022En"
+          + "vironmentHistory\022\023\n\006parent\030\001 \001(\tB\003\340A\003\022O\n"
+          + "\007entries\030\002 \003(\01329.google.cloud.dialogflow"
+          + ".v2beta1.EnvironmentHistory.EntryB\003\340A\003\022\034"
+          + "\n\017next_page_token\030\003 \001(\tB\003\340A\003\032d\n\005Entry\022\025\n"
+          + "\ragent_version\030\001 \001(\t\022\023\n\013description\030\002 \001("
+          + "\t\022/\n\013create_time\030\003 \001(\0132\032.google.protobuf"
+          + ".Timestamp2\277\r\n\014Environments\022\210\002\n\020ListEnvi"
+          + "ronments\0228.google.cloud.dialogflow.v2bet"
+          + "a1.ListEnvironmentsRequest\0329.google.clou"
+          + "d.dialogflow.v2beta1.ListEnvironmentsRes"
+          + "ponse\"\177\202\323\344\223\002p\022//v2beta1/{parent=projects"
+          + "/*/agent}/environmentsZ=\022;/v2beta1/{pare"
+          + "nt=projects/*/locations/*/agent}/environ"
+          + "ments\332A\006parent\022\356\001\n\016GetEnvironment\0226.goog"
+          + "le.cloud.dialogflow.v2beta1.GetEnvironme"
+          + "ntRequest\032,.google.cloud.dialogflow.v2be"
+          + "ta1.Environment\"v\202\323\344\223\002p\022//v2beta1/{name="
+          + "projects/*/agent/environments/*}Z=\022;/v2b"
+          + "eta1/{name=projects/*/locations/*/agent/"
+          + "environments/*}\022\220\002\n\021CreateEnvironment\0229."
+          + "google.cloud.dialogflow.v2beta1.CreateEn"
+          + "vironmentRequest\032,.google.cloud.dialogfl"
+          + "ow.v2beta1.Environment\"\221\001\202\323\344\223\002\212\001\"//v2bet"
+          + "a1/{parent=projects/*/agent}/environment"
+          + "s:\013environmentZJ\";/v2beta1/{parent=proje"
+          + "cts/*/locations/*/agent}/environments:\013e"
+          + "nvironment\022\250\002\n\021UpdateEnvironment\0229.googl"
+          + "e.cloud.dialogflow.v2beta1.UpdateEnviron"
+          + "mentRequest\032,.google.cloud.dialogflow.v2"
+          + "beta1.Environment\"\251\001\202\323\344\223\002\242\0012;/v2beta1/{e"
+          + "nvironment.name=projects/*/agent/environ"
+          + "ments/*}:\013environmentZV2G/v2beta1/{envir"
+          + "onment.name=projects/*/locations/*/agent"
+          + "/environments/*}:\013environment\022\336\001\n\021Delete"
+          + "Environment\0229.google.cloud.dialogflow.v2"
+          + "beta1.DeleteEnvironmentRequest\032\026.google."
+          + "protobuf.Empty\"v\202\323\344\223\002p*//v2beta1/{name=p"
+          + "rojects/*/agent/environments/*}Z=*;/v2be"
+          + "ta1/{name=projects/*/locations/*/agent/e"
+          + "nvironments/*}\022\231\002\n\025GetEnvironmentHistory"
+          + "\022=.google.cloud.dialogflow.v2beta1.GetEn"
+          + "vironmentHistoryRequest\0323.google.cloud.d"
+          + "ialogflow.v2beta1.EnvironmentHistory\"\213\001\202"
+          + "\323\344\223\002\204\001\0229/v2beta1/{parent=projects/*/agen"
+          + "t/environments/*}/historyZG\022E/v2beta1/{p"
+          + "arent=projects/*/locations/*/agent/envir"
+          + "onments/*}/history\032x\312A\031dialogflow.google"
+          + "apis.com\322AYhttps://www.googleapis.com/au"
+          + "th/cloud-platform,https://www.googleapis"
+          + ".com/auth/dialogflowB\256\001\n#com.google.clou"
+          + "d.dialogflow.v2beta1B\020EnvironmentProtoP\001"
+          + "ZIgoogle.golang.org/genproto/googleapis/"
+          + "cloud/dialogflow/v2beta1;dialogflow\370\001\001\242\002"
+          + "\002DF\252\002\037Google.Cloud.Dialogflow.V2beta1b\006p"
+          + "roto3"
     };
     descriptor =
         com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
@@ -100,6 +210,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               com.google.api.FieldBehaviorProto.getDescriptor(),
               com.google.api.ResourceProto.getDescriptor(),
               com.google.cloud.dialogflow.v2beta1.AudioConfigProto.getDescriptor(),
+              com.google.cloud.dialogflow.v2beta1.FulfillmentProto.getDescriptor(),
               com.google.protobuf.EmptyProto.getDescriptor(),
               com.google.protobuf.FieldMaskProto.getDescriptor(),
               com.google.protobuf.TimestampProto.getDescriptor(),
@@ -110,10 +221,37 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_dialogflow_v2beta1_Environment_descriptor,
             new java.lang.String[] {
-              "Name", "Description", "AgentVersion", "State", "UpdateTime",
+              "Name",
+              "Description",
+              "AgentVersion",
+              "State",
+              "UpdateTime",
+              "TextToSpeechSettings",
+              "Fulfillment",
             });
-    internal_static_google_cloud_dialogflow_v2beta1_ListEnvironmentsRequest_descriptor =
+    internal_static_google_cloud_dialogflow_v2beta1_TextToSpeechSettings_descriptor =
         getDescriptor().getMessageTypes().get(1);
+    internal_static_google_cloud_dialogflow_v2beta1_TextToSpeechSettings_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_v2beta1_TextToSpeechSettings_descriptor,
+            new java.lang.String[] {
+              "EnableTextToSpeech",
+              "OutputAudioEncoding",
+              "SampleRateHertz",
+              "SynthesizeSpeechConfigs",
+            });
+    internal_static_google_cloud_dialogflow_v2beta1_TextToSpeechSettings_SynthesizeSpeechConfigsEntry_descriptor =
+        internal_static_google_cloud_dialogflow_v2beta1_TextToSpeechSettings_descriptor
+            .getNestedTypes()
+            .get(0);
+    internal_static_google_cloud_dialogflow_v2beta1_TextToSpeechSettings_SynthesizeSpeechConfigsEntry_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_v2beta1_TextToSpeechSettings_SynthesizeSpeechConfigsEntry_descriptor,
+            new java.lang.String[] {
+              "Key", "Value",
+            });
+    internal_static_google_cloud_dialogflow_v2beta1_ListEnvironmentsRequest_descriptor =
+        getDescriptor().getMessageTypes().get(2);
     internal_static_google_cloud_dialogflow_v2beta1_ListEnvironmentsRequest_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_dialogflow_v2beta1_ListEnvironmentsRequest_descriptor,
@@ -121,13 +259,71 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "Parent", "PageSize", "PageToken",
             });
     internal_static_google_cloud_dialogflow_v2beta1_ListEnvironmentsResponse_descriptor =
-        getDescriptor().getMessageTypes().get(2);
+        getDescriptor().getMessageTypes().get(3);
     internal_static_google_cloud_dialogflow_v2beta1_ListEnvironmentsResponse_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_dialogflow_v2beta1_ListEnvironmentsResponse_descriptor,
             new java.lang.String[] {
               "Environments", "NextPageToken",
             });
+    internal_static_google_cloud_dialogflow_v2beta1_GetEnvironmentRequest_descriptor =
+        getDescriptor().getMessageTypes().get(4);
+    internal_static_google_cloud_dialogflow_v2beta1_GetEnvironmentRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_v2beta1_GetEnvironmentRequest_descriptor,
+            new java.lang.String[] {
+              "Name",
+            });
+    internal_static_google_cloud_dialogflow_v2beta1_CreateEnvironmentRequest_descriptor =
+        getDescriptor().getMessageTypes().get(5);
+    internal_static_google_cloud_dialogflow_v2beta1_CreateEnvironmentRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_v2beta1_CreateEnvironmentRequest_descriptor,
+            new java.lang.String[] {
+              "Parent", "Environment", "EnvironmentId",
+            });
+    internal_static_google_cloud_dialogflow_v2beta1_UpdateEnvironmentRequest_descriptor =
+        getDescriptor().getMessageTypes().get(6);
+    internal_static_google_cloud_dialogflow_v2beta1_UpdateEnvironmentRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_v2beta1_UpdateEnvironmentRequest_descriptor,
+            new java.lang.String[] {
+              "Environment", "UpdateMask", "AllowLoadToDraftAndDiscardChanges",
+            });
+    internal_static_google_cloud_dialogflow_v2beta1_DeleteEnvironmentRequest_descriptor =
+        getDescriptor().getMessageTypes().get(7);
+    internal_static_google_cloud_dialogflow_v2beta1_DeleteEnvironmentRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_v2beta1_DeleteEnvironmentRequest_descriptor,
+            new java.lang.String[] {
+              "Name",
+            });
+    internal_static_google_cloud_dialogflow_v2beta1_GetEnvironmentHistoryRequest_descriptor =
+        getDescriptor().getMessageTypes().get(8);
+    internal_static_google_cloud_dialogflow_v2beta1_GetEnvironmentHistoryRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_v2beta1_GetEnvironmentHistoryRequest_descriptor,
+            new java.lang.String[] {
+              "Parent", "PageSize", "PageToken",
+            });
+    internal_static_google_cloud_dialogflow_v2beta1_EnvironmentHistory_descriptor =
+        getDescriptor().getMessageTypes().get(9);
+    internal_static_google_cloud_dialogflow_v2beta1_EnvironmentHistory_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_v2beta1_EnvironmentHistory_descriptor,
+            new java.lang.String[] {
+              "Parent", "Entries", "NextPageToken",
+            });
+    internal_static_google_cloud_dialogflow_v2beta1_EnvironmentHistory_Entry_descriptor =
+        internal_static_google_cloud_dialogflow_v2beta1_EnvironmentHistory_descriptor
+            .getNestedTypes()
+            .get(0);
+    internal_static_google_cloud_dialogflow_v2beta1_EnvironmentHistory_Entry_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_v2beta1_EnvironmentHistory_Entry_descriptor,
+            new java.lang.String[] {
+              "AgentVersion", "Description", "CreateTime",
+            });
     com.google.protobuf.ExtensionRegistry registry =
         com.google.protobuf.ExtensionRegistry.newInstance();
     registry.add(com.google.api.ClientProto.defaultHost);
@@ -144,6 +340,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
     com.google.api.FieldBehaviorProto.getDescriptor();
     com.google.api.ResourceProto.getDescriptor();
     com.google.cloud.dialogflow.v2beta1.AudioConfigProto.getDescriptor();
+    com.google.cloud.dialogflow.v2beta1.FulfillmentProto.getDescriptor();
     com.google.protobuf.EmptyProto.getDescriptor();
     com.google.protobuf.FieldMaskProto.getDescriptor();
     com.google.protobuf.TimestampProto.getDescriptor();
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/Fulfillment.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/Fulfillment.java
new file mode 100644
index 000000000..4f24493f4
--- /dev/null
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/Fulfillment.java
@@ -0,0 +1,4264 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/v2beta1/fulfillment.proto
+
+package com.google.cloud.dialogflow.v2beta1;
+
+/**
+ *
+ *
+ * 
+ * By default, your agent responds to a matched intent with a static response.
+ * As an alternative, you can provide a more dynamic response by using
+ * fulfillment. When you enable fulfillment for an intent, Dialogflow responds
+ * to that intent by calling a service that you define. For example, if an
+ * end-user wants to schedule a haircut on Friday, your service can check your
+ * database and respond to the end-user with availability information for
+ * Friday.
+ * For more information, see the [fulfillment
+ * guide](https://cloud.google.com/dialogflow/docs/fulfillment-overview).
+ * 

+ *
+ * Protobuf type {@code google.cloud.dialogflow.v2beta1.Fulfillment}
+ */
+public final class Fulfillment extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.v2beta1.Fulfillment)
+    FulfillmentOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use Fulfillment.newBuilder() to construct.
+  private Fulfillment(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+    super(builder);
+  }
+
+  private Fulfillment() {
+    name_ = "";
+    displayName_ = "";
+    features_ = java.util.Collections.emptyList();
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new Fulfillment();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private Fulfillment(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              name_ = s;
+              break;
+            }
+          case 18:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              displayName_ = s;
+              break;
+            }
+          case 26:
+            {
+              com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService.Builder subBuilder =
+                  null;
+              if (fulfillmentCase_ == 3) {
+                subBuilder =
+                    ((com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService)
+                            fulfillment_)
+                        .toBuilder();
+              }
+              fulfillment_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService.parser(),
+                      extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(
+                    (com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService)
+                        fulfillment_);
+                fulfillment_ = subBuilder.buildPartial();
+              }
+              fulfillmentCase_ = 3;
+              break;
+            }
+          case 32:
+            {
+              enabled_ = input.readBool();
+              break;
+            }
+          case 42:
+            {
+              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+                features_ =
+                    new java.util.ArrayList<
+                        com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature>();
+                mutable_bitField0_ |= 0x00000001;
+              }
+              features_.add(
+                  input.readMessage(
+                      com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature.parser(),
+                      extensionRegistry));
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      if (((mutable_bitField0_ & 0x00000001) != 0)) {
+        features_ = java.util.Collections.unmodifiableList(features_);
+      }
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.v2beta1.FulfillmentProto
+        .internal_static_google_cloud_dialogflow_v2beta1_Fulfillment_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.v2beta1.FulfillmentProto
+        .internal_static_google_cloud_dialogflow_v2beta1_Fulfillment_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.v2beta1.Fulfillment.class,
+            com.google.cloud.dialogflow.v2beta1.Fulfillment.Builder.class);
+  }
+
+  public interface GenericWebServiceOrBuilder
+      extends
+      // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService)
+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     *
+     *
+     * 
+     * Required. The fulfillment URI for receiving POST requests.
+     * It must use https protocol.
+     * 

+     *
+     * string uri = 1 [(.google.api.field_behavior) = REQUIRED];
+     *
+     * @return The uri.
+     */
+    java.lang.String getUri();
+    /**
+     *
+     *
+     * 
+     * Required. The fulfillment URI for receiving POST requests.
+     * It must use https protocol.
+     * 

+     *
+     * string uri = 1 [(.google.api.field_behavior) = REQUIRED];
+     *
+     * @return The bytes for uri.
+     */
+    com.google.protobuf.ByteString getUriBytes();
+
+    /**
+     *
+     *
+     * 
+     * The user name for HTTP Basic authentication.
+     * 

+     *
+     * string username = 2;
+     *
+     * @return The username.
+     */
+    java.lang.String getUsername();
+    /**
+     *
+     *
+     * 
+     * The user name for HTTP Basic authentication.
+     * 

+     *
+     * string username = 2;
+     *
+     * @return The bytes for username.
+     */
+    com.google.protobuf.ByteString getUsernameBytes();
+
+    /**
+     *
+     *
+     * 
+     * The password for HTTP Basic authentication.
+     * 

+     *
+     * string password = 3;
+     *
+     * @return The password.
+     */
+    java.lang.String getPassword();
+    /**
+     *
+     *
+     * 
+     * The password for HTTP Basic authentication.
+     * 

+     *
+     * string password = 3;
+     *
+     * @return The bytes for password.
+     */
+    com.google.protobuf.ByteString getPasswordBytes();
+
+    /**
+     *
+     *
+     * 
+     * The HTTP request headers to send together with fulfillment requests.
+     * 

+     *
+     * map<string, string> request_headers = 4;
+     */
+    int getRequestHeadersCount();
+    /**
+     *
+     *
+     * 
+     * The HTTP request headers to send together with fulfillment requests.
+     * 

+     *
+     * map<string, string> request_headers = 4;
+     */
+    boolean containsRequestHeaders(java.lang.String key);
+    /** Use {@link #getRequestHeadersMap()} instead. */
+    @java.lang.Deprecated
+    java.util.Map getRequestHeaders();
+    /**
+     *
+     *
+     * 
+     * The HTTP request headers to send together with fulfillment requests.
+     * 

+     *
+     * map<string, string> request_headers = 4;
+     */
+    java.util.Map getRequestHeadersMap();
+    /**
+     *
+     *
+     * 
+     * The HTTP request headers to send together with fulfillment requests.
+     * 

+     *
+     * map<string, string> request_headers = 4;
+     */
+    java.lang.String getRequestHeadersOrDefault(
+        java.lang.String key, java.lang.String defaultValue);
+    /**
+     *
+     *
+     * 
+     * The HTTP request headers to send together with fulfillment requests.
+     * 

+     *
+     * map<string, string> request_headers = 4;
+     */
+    java.lang.String getRequestHeadersOrThrow(java.lang.String key);
+
+    /**
+     *
+     *
+     * 
+     * Optional. Indicates if generic web service is created through Cloud Functions
+     * integration. Defaults to false.
+     * is_cloud_function is deprecated. Cloud functions can be configured by
+     * its uri as a regular web service now.
+     * 

+     *
+     * 
+     * bool is_cloud_function = 5 [deprecated = true, (.google.api.field_behavior) = OPTIONAL];
+     * 
+     *
+     * @return The isCloudFunction.
+     */
+    @java.lang.Deprecated
+    boolean getIsCloudFunction();
+  }
+  /**
+   *
+   *
+   * 
+   * Represents configuration for a generic web service.
+   * Dialogflow supports two mechanisms for authentications:
+   * - Basic authentication with username and password.
+   * - Authentication with additional authentication headers.
+   * More information could be found at:
+   * https://cloud.google.com/dialogflow/docs/fulfillment-configure.
+   * 

+   *
+   * Protobuf type {@code google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService}
+   */
+  public static final class GenericWebService extends com.google.protobuf.GeneratedMessageV3
+      implements
+      // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService)
+      GenericWebServiceOrBuilder {
+    private static final long serialVersionUID = 0L;
+    // Use GenericWebService.newBuilder() to construct.
+    private GenericWebService(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+      super(builder);
+    }
+
+    private GenericWebService() {
+      uri_ = "";
+      username_ = "";
+      password_ = "";
+    }
+
+    @java.lang.Override
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+      return new GenericWebService();
+    }
+
+    @java.lang.Override
+    public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+      return this.unknownFields;
+    }
+
+    private GenericWebService(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      this();
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      int mutable_bitField0_ = 0;
+      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+          com.google.protobuf.UnknownFieldSet.newBuilder();
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+
+                uri_ = s;
+                break;
+              }
+            case 18:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+
+                username_ = s;
+                break;
+              }
+            case 26:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+
+                password_ = s;
+                break;
+              }
+            case 34:
+              {
+                if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+                  requestHeaders_ =
+                      com.google.protobuf.MapField.newMapField(
+                          RequestHeadersDefaultEntryHolder.defaultEntry);
+                  mutable_bitField0_ |= 0x00000001;
+                }
+                com.google.protobuf.MapEntry requestHeaders__ =
+                    input.readMessage(
+                        RequestHeadersDefaultEntryHolder.defaultEntry.getParserForType(),
+                        extensionRegistry);
+                requestHeaders_
+                    .getMutableMap()
+                    .put(requestHeaders__.getKey(), requestHeaders__.getValue());
+                break;
+              }
+            case 40:
+              {
+                isCloudFunction_ = input.readBool();
+                break;
+              }
+            default:
+              {
+                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                  done = true;
+                }
+                break;
+              }
+          }
+        }
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.setUnfinishedMessage(this);
+      } catch (java.io.IOException e) {
+        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+      } finally {
+        this.unknownFields = unknownFields.build();
+        makeExtensionsImmutable();
+      }
+    }
+
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.v2beta1.FulfillmentProto
+          .internal_static_google_cloud_dialogflow_v2beta1_Fulfillment_GenericWebService_descriptor;
+    }
+
+    @SuppressWarnings({"rawtypes"})
+    @java.lang.Override
+    protected com.google.protobuf.MapField internalGetMapField(int number) {
+      switch (number) {
+        case 4:
+          return internalGetRequestHeaders();
+        default:
+          throw new RuntimeException("Invalid map field number: " + number);
+      }
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.v2beta1.FulfillmentProto
+          .internal_static_google_cloud_dialogflow_v2beta1_Fulfillment_GenericWebService_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService.class,
+              com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService.Builder.class);
+    }
+
+    public static final int URI_FIELD_NUMBER = 1;
+    private volatile java.lang.Object uri_;
+    /**
+     *
+     *
+     * 
+     * Required. The fulfillment URI for receiving POST requests.
+     * It must use https protocol.
+     * 

+     *
+     * string uri = 1 [(.google.api.field_behavior) = REQUIRED];
+     *
+     * @return The uri.
+     */
+    @java.lang.Override
+    public java.lang.String getUri() {
+      java.lang.Object ref = uri_;
+      if (ref instanceof java.lang.String) {
+        return (java.lang.String) ref;
+      } else {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        uri_ = s;
+        return s;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The fulfillment URI for receiving POST requests.
+     * It must use https protocol.
+     * 

+     *
+     * string uri = 1 [(.google.api.field_behavior) = REQUIRED];
+     *
+     * @return The bytes for uri.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getUriBytes() {
+      java.lang.Object ref = uri_;
+      if (ref instanceof java.lang.String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        uri_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+
+    public static final int USERNAME_FIELD_NUMBER = 2;
+    private volatile java.lang.Object username_;
+    /**
+     *
+     *
+     * 
+     * The user name for HTTP Basic authentication.
+     * 

+     *
+     * string username = 2;
+     *
+     * @return The username.
+     */
+    @java.lang.Override
+    public java.lang.String getUsername() {
+      java.lang.Object ref = username_;
+      if (ref instanceof java.lang.String) {
+        return (java.lang.String) ref;
+      } else {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        username_ = s;
+        return s;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * The user name for HTTP Basic authentication.
+     * 

+     *
+     * string username = 2;
+     *
+     * @return The bytes for username.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getUsernameBytes() {
+      java.lang.Object ref = username_;
+      if (ref instanceof java.lang.String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        username_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+
+    public static final int PASSWORD_FIELD_NUMBER = 3;
+    private volatile java.lang.Object password_;
+    /**
+     *
+     *
+     * 
+     * The password for HTTP Basic authentication.
+     * 

+     *
+     * string password = 3;
+     *
+     * @return The password.
+     */
+    @java.lang.Override
+    public java.lang.String getPassword() {
+      java.lang.Object ref = password_;
+      if (ref instanceof java.lang.String) {
+        return (java.lang.String) ref;
+      } else {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        password_ = s;
+        return s;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * The password for HTTP Basic authentication.
+     * 

+     *
+     * string password = 3;
+     *
+     * @return The bytes for password.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getPasswordBytes() {
+      java.lang.Object ref = password_;
+      if (ref instanceof java.lang.String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        password_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+
+    public static final int REQUEST_HEADERS_FIELD_NUMBER = 4;
+
+    private static final class RequestHeadersDefaultEntryHolder {
+      static final com.google.protobuf.MapEntry defaultEntry =
+          com.google.protobuf.MapEntry.newDefaultInstance(
+              com.google.cloud.dialogflow.v2beta1.FulfillmentProto
+                  .internal_static_google_cloud_dialogflow_v2beta1_Fulfillment_GenericWebService_RequestHeadersEntry_descriptor,
+              com.google.protobuf.WireFormat.FieldType.STRING,
+              "",
+              com.google.protobuf.WireFormat.FieldType.STRING,
+              "");
+    }
+
+    private com.google.protobuf.MapField requestHeaders_;
+
+    private com.google.protobuf.MapField
+        internalGetRequestHeaders() {
+      if (requestHeaders_ == null) {
+        return com.google.protobuf.MapField.emptyMapField(
+            RequestHeadersDefaultEntryHolder.defaultEntry);
+      }
+      return requestHeaders_;
+    }
+
+    public int getRequestHeadersCount() {
+      return internalGetRequestHeaders().getMap().size();
+    }
+    /**
+     *
+     *
+     * 
+     * The HTTP request headers to send together with fulfillment requests.
+     * 

+     *
+     * map<string, string> request_headers = 4;
+     */
+    @java.lang.Override
+    public boolean containsRequestHeaders(java.lang.String key) {
+      if (key == null) {
+        throw new java.lang.NullPointerException();
+      }
+      return internalGetRequestHeaders().getMap().containsKey(key);
+    }
+    /** Use {@link #getRequestHeadersMap()} instead. */
+    @java.lang.Override
+    @java.lang.Deprecated
+    public java.util.Map getRequestHeaders() {
+      return getRequestHeadersMap();
+    }
+    /**
+     *
+     *
+     * 
+     * The HTTP request headers to send together with fulfillment requests.
+     * 

+     *
+     * map<string, string> request_headers = 4;
+     */
+    @java.lang.Override
+    public java.util.Map getRequestHeadersMap() {
+      return internalGetRequestHeaders().getMap();
+    }
+    /**
+     *
+     *
+     * 
+     * The HTTP request headers to send together with fulfillment requests.
+     * 

+     *
+     * map<string, string> request_headers = 4;
+     */
+    @java.lang.Override
+    public java.lang.String getRequestHeadersOrDefault(
+        java.lang.String key, java.lang.String defaultValue) {
+      if (key == null) {
+        throw new java.lang.NullPointerException();
+      }
+      java.util.Map map = internalGetRequestHeaders().getMap();
+      return map.containsKey(key) ? map.get(key) : defaultValue;
+    }
+    /**
+     *
+     *
+     * 
+     * The HTTP request headers to send together with fulfillment requests.
+     * 

+     *
+     * map<string, string> request_headers = 4;
+     */
+    @java.lang.Override
+    public java.lang.String getRequestHeadersOrThrow(java.lang.String key) {
+      if (key == null) {
+        throw new java.lang.NullPointerException();
+      }
+      java.util.Map map = internalGetRequestHeaders().getMap();
+      if (!map.containsKey(key)) {
+        throw new java.lang.IllegalArgumentException();
+      }
+      return map.get(key);
+    }
+
+    public static final int IS_CLOUD_FUNCTION_FIELD_NUMBER = 5;
+    private boolean isCloudFunction_;
+    /**
+     *
+     *
+     * 
+     * Optional. Indicates if generic web service is created through Cloud Functions
+     * integration. Defaults to false.
+     * is_cloud_function is deprecated. Cloud functions can be configured by
+     * its uri as a regular web service now.
+     * 

+     *
+     * 
+     * bool is_cloud_function = 5 [deprecated = true, (.google.api.field_behavior) = OPTIONAL];
+     * 
+     *
+     * @return The isCloudFunction.
+     */
+    @java.lang.Override
+    @java.lang.Deprecated
+    public boolean getIsCloudFunction() {
+      return isCloudFunction_;
+    }
+
+    private byte memoizedIsInitialized = -1;
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    @java.lang.Override
+    public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+      if (!getUriBytes().isEmpty()) {
+        com.google.protobuf.GeneratedMessageV3.writeString(output, 1, uri_);
+      }
+      if (!getUsernameBytes().isEmpty()) {
+        com.google.protobuf.GeneratedMessageV3.writeString(output, 2, username_);
+      }
+      if (!getPasswordBytes().isEmpty()) {
+        com.google.protobuf.GeneratedMessageV3.writeString(output, 3, password_);
+      }
+      com.google.protobuf.GeneratedMessageV3.serializeStringMapTo(
+          output, internalGetRequestHeaders(), RequestHeadersDefaultEntryHolder.defaultEntry, 4);
+      if (isCloudFunction_ != false) {
+        output.writeBool(5, isCloudFunction_);
+      }
+      unknownFields.writeTo(output);
+    }
+
+    @java.lang.Override
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      if (!getUriBytes().isEmpty()) {
+        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, uri_);
+      }
+      if (!getUsernameBytes().isEmpty()) {
+        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, username_);
+      }
+      if (!getPasswordBytes().isEmpty()) {
+        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, password_);
+      }
+      for (java.util.Map.Entry entry :
+          internalGetRequestHeaders().getMap().entrySet()) {
+        com.google.protobuf.MapEntry requestHeaders__ =
+            RequestHeadersDefaultEntryHolder.defaultEntry
+                .newBuilderForType()
+                .setKey(entry.getKey())
+                .setValue(entry.getValue())
+                .build();
+        size += com.google.protobuf.CodedOutputStream.computeMessageSize(4, requestHeaders__);
+      }
+      if (isCloudFunction_ != false) {
+        size += com.google.protobuf.CodedOutputStream.computeBoolSize(5, isCloudFunction_);
+      }
+      size += unknownFields.getSerializedSize();
+      memoizedSize = size;
+      return size;
+    }
+
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+        return true;
+      }
+      if (!(obj instanceof com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService)) {
+        return super.equals(obj);
+      }
+      com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService other =
+          (com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService) obj;
+
+      if (!getUri().equals(other.getUri())) return false;
+      if (!getUsername().equals(other.getUsername())) return false;
+      if (!getPassword().equals(other.getPassword())) return false;
+      if (!internalGetRequestHeaders().equals(other.internalGetRequestHeaders())) return false;
+      if (getIsCloudFunction() != other.getIsCloudFunction()) return false;
+      if (!unknownFields.equals(other.unknownFields)) return false;
+      return true;
+    }
+
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
+      }
+      int hash = 41;
+      hash = (19 * hash) + getDescriptor().hashCode();
+      hash = (37 * hash) + URI_FIELD_NUMBER;
+      hash = (53 * hash) + getUri().hashCode();
+      hash = (37 * hash) + USERNAME_FIELD_NUMBER;
+      hash = (53 * hash) + getUsername().hashCode();
+      hash = (37 * hash) + PASSWORD_FIELD_NUMBER;
+      hash = (53 * hash) + getPassword().hashCode();
+      if (!internalGetRequestHeaders().getMap().isEmpty()) {
+        hash = (37 * hash) + REQUEST_HEADERS_FIELD_NUMBER;
+        hash = (53 * hash) + internalGetRequestHeaders().hashCode();
+      }
+      hash = (37 * hash) + IS_CLOUD_FUNCTION_FIELD_NUMBER;
+      hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getIsCloudFunction());
+      hash = (29 * hash) + unknownFields.hashCode();
+      memoizedHashCode = hash;
+      return hash;
+    }
+
+    public static com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService parseFrom(
+        java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService parseFrom(
+        java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService parseFrom(
+        byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService parseFrom(
+        byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService parseFrom(
+        java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService parseFrom(
+        java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService
+        parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService
+        parseDelimitedFrom(
+            java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService parseFrom(
+        com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService parseFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    @java.lang.Override
+    public Builder newBuilderForType() {
+      return newBuilder();
+    }
+
+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
+
+    public static Builder newBuilder(
+        com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService prototype) {
+      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    }
+
+    @java.lang.Override
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+    }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     *
+     *
+     * 
+     * Represents configuration for a generic web service.
+     * Dialogflow supports two mechanisms for authentications:
+     * - Basic authentication with username and password.
+     * - Authentication with additional authentication headers.
+     * More information could be found at:
+     * https://cloud.google.com/dialogflow/docs/fulfillment-configure.
+     * 

+     *
+     * Protobuf type {@code google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService}
+     */
+    public static final class Builder
+        extends com.google.protobuf.GeneratedMessageV3.Builder
+        implements
+        // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService)
+        com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebServiceOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.dialogflow.v2beta1.FulfillmentProto
+            .internal_static_google_cloud_dialogflow_v2beta1_Fulfillment_GenericWebService_descriptor;
+      }
+
+      @SuppressWarnings({"rawtypes"})
+      protected com.google.protobuf.MapField internalGetMapField(int number) {
+        switch (number) {
+          case 4:
+            return internalGetRequestHeaders();
+          default:
+            throw new RuntimeException("Invalid map field number: " + number);
+        }
+      }
+
+      @SuppressWarnings({"rawtypes"})
+      protected com.google.protobuf.MapField internalGetMutableMapField(int number) {
+        switch (number) {
+          case 4:
+            return internalGetMutableRequestHeaders();
+          default:
+            throw new RuntimeException("Invalid map field number: " + number);
+        }
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.google.cloud.dialogflow.v2beta1.FulfillmentProto
+            .internal_static_google_cloud_dialogflow_v2beta1_Fulfillment_GenericWebService_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService.class,
+                com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService.Builder.class);
+      }
+
+      // Construct using
+      // com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+
+      private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+
+      private void maybeForceBuilderInitialization() {
+        if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+      }
+
+      @java.lang.Override
+      public Builder clear() {
+        super.clear();
+        uri_ = "";
+
+        username_ = "";
+
+        password_ = "";
+
+        internalGetMutableRequestHeaders().clear();
+        isCloudFunction_ = false;
+
+        return this;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+        return com.google.cloud.dialogflow.v2beta1.FulfillmentProto
+            .internal_static_google_cloud_dialogflow_v2beta1_Fulfillment_GenericWebService_descriptor;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService
+          getDefaultInstanceForType() {
+        return com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService
+            .getDefaultInstance();
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService build() {
+        com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService buildPartial() {
+        com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService result =
+            new com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService(this);
+        int from_bitField0_ = bitField0_;
+        result.uri_ = uri_;
+        result.username_ = username_;
+        result.password_ = password_;
+        result.requestHeaders_ = internalGetRequestHeaders();
+        result.requestHeaders_.makeImmutable();
+        result.isCloudFunction_ = isCloudFunction_;
+        onBuilt();
+        return result;
+      }
+
+      @java.lang.Override
+      public Builder clone() {
+        return super.clone();
+      }
+
+      @java.lang.Override
+      public Builder setField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.setField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+        return super.clearField(field);
+      }
+
+      @java.lang.Override
+      public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+        return super.clearOneof(oneof);
+      }
+
+      @java.lang.Override
+      public Builder setRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          int index,
+          java.lang.Object value) {
+        return super.setRepeatedField(field, index, value);
+      }
+
+      @java.lang.Override
+      public Builder addRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.addRepeatedField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other instanceof com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService) {
+          return mergeFrom(
+              (com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService) other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(
+          com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService other) {
+        if (other
+            == com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService
+                .getDefaultInstance()) return this;
+        if (!other.getUri().isEmpty()) {
+          uri_ = other.uri_;
+          onChanged();
+        }
+        if (!other.getUsername().isEmpty()) {
+          username_ = other.username_;
+          onChanged();
+        }
+        if (!other.getPassword().isEmpty()) {
+          password_ = other.password_;
+          onChanged();
+        }
+        internalGetMutableRequestHeaders().mergeFrom(other.internalGetRequestHeaders());
+        if (other.getIsCloudFunction() != false) {
+          setIsCloudFunction(other.getIsCloudFunction());
+        }
+        this.mergeUnknownFields(other.unknownFields);
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService parsedMessage = null;
+        try {
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage =
+              (com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService)
+                  e.getUnfinishedMessage();
+          throw e.unwrapIOException();
+        } finally {
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
+        return this;
+      }
+
+      private int bitField0_;
+
+      private java.lang.Object uri_ = "";
+      /**
+       *
+       *
+       * 
+       * Required. The fulfillment URI for receiving POST requests.
+       * It must use https protocol.
+       * 

+       *
+       * string uri = 1 [(.google.api.field_behavior) = REQUIRED];
+       *
+       * @return The uri.
+       */
+      public java.lang.String getUri() {
+        java.lang.Object ref = uri_;
+        if (!(ref instanceof java.lang.String)) {
+          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          uri_ = s;
+          return s;
+        } else {
+          return (java.lang.String) ref;
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * Required. The fulfillment URI for receiving POST requests.
+       * It must use https protocol.
+       * 

+       *
+       * string uri = 1 [(.google.api.field_behavior) = REQUIRED];
+       *
+       * @return The bytes for uri.
+       */
+      public com.google.protobuf.ByteString getUriBytes() {
+        java.lang.Object ref = uri_;
+        if (ref instanceof String) {
+          com.google.protobuf.ByteString b =
+              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+          uri_ = b;
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * Required. The fulfillment URI for receiving POST requests.
+       * It must use https protocol.
+       * 

+       *
+       * string uri = 1 [(.google.api.field_behavior) = REQUIRED];
+       *
+       * @param value The uri to set.
+       * @return This builder for chaining.
+       */
+      public Builder setUri(java.lang.String value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+
+        uri_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Required. The fulfillment URI for receiving POST requests.
+       * It must use https protocol.
+       * 

+       *
+       * string uri = 1 [(.google.api.field_behavior) = REQUIRED];
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearUri() {
+
+        uri_ = getDefaultInstance().getUri();
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Required. The fulfillment URI for receiving POST requests.
+       * It must use https protocol.
+       * 

+       *
+       * string uri = 1 [(.google.api.field_behavior) = REQUIRED];
+       *
+       * @param value The bytes for uri to set.
+       * @return This builder for chaining.
+       */
+      public Builder setUriBytes(com.google.protobuf.ByteString value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        checkByteStringIsUtf8(value);
+
+        uri_ = value;
+        onChanged();
+        return this;
+      }
+
+      private java.lang.Object username_ = "";
+      /**
+       *
+       *
+       * 
+       * The user name for HTTP Basic authentication.
+       * 

+       *
+       * string username = 2;
+       *
+       * @return The username.
+       */
+      public java.lang.String getUsername() {
+        java.lang.Object ref = username_;
+        if (!(ref instanceof java.lang.String)) {
+          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          username_ = s;
+          return s;
+        } else {
+          return (java.lang.String) ref;
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * The user name for HTTP Basic authentication.
+       * 

+       *
+       * string username = 2;
+       *
+       * @return The bytes for username.
+       */
+      public com.google.protobuf.ByteString getUsernameBytes() {
+        java.lang.Object ref = username_;
+        if (ref instanceof String) {
+          com.google.protobuf.ByteString b =
+              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+          username_ = b;
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * The user name for HTTP Basic authentication.
+       * 

+       *
+       * string username = 2;
+       *
+       * @param value The username to set.
+       * @return This builder for chaining.
+       */
+      public Builder setUsername(java.lang.String value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+
+        username_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The user name for HTTP Basic authentication.
+       * 

+       *
+       * string username = 2;
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearUsername() {
+
+        username_ = getDefaultInstance().getUsername();
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The user name for HTTP Basic authentication.
+       * 

+       *
+       * string username = 2;
+       *
+       * @param value The bytes for username to set.
+       * @return This builder for chaining.
+       */
+      public Builder setUsernameBytes(com.google.protobuf.ByteString value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        checkByteStringIsUtf8(value);
+
+        username_ = value;
+        onChanged();
+        return this;
+      }
+
+      private java.lang.Object password_ = "";
+      /**
+       *
+       *
+       * 
+       * The password for HTTP Basic authentication.
+       * 

+       *
+       * string password = 3;
+       *
+       * @return The password.
+       */
+      public java.lang.String getPassword() {
+        java.lang.Object ref = password_;
+        if (!(ref instanceof java.lang.String)) {
+          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          password_ = s;
+          return s;
+        } else {
+          return (java.lang.String) ref;
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * The password for HTTP Basic authentication.
+       * 

+       *
+       * string password = 3;
+       *
+       * @return The bytes for password.
+       */
+      public com.google.protobuf.ByteString getPasswordBytes() {
+        java.lang.Object ref = password_;
+        if (ref instanceof String) {
+          com.google.protobuf.ByteString b =
+              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+          password_ = b;
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * The password for HTTP Basic authentication.
+       * 

+       *
+       * string password = 3;
+       *
+       * @param value The password to set.
+       * @return This builder for chaining.
+       */
+      public Builder setPassword(java.lang.String value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+
+        password_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The password for HTTP Basic authentication.
+       * 

+       *
+       * string password = 3;
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearPassword() {
+
+        password_ = getDefaultInstance().getPassword();
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The password for HTTP Basic authentication.
+       * 

+       *
+       * string password = 3;
+       *
+       * @param value The bytes for password to set.
+       * @return This builder for chaining.
+       */
+      public Builder setPasswordBytes(com.google.protobuf.ByteString value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        checkByteStringIsUtf8(value);
+
+        password_ = value;
+        onChanged();
+        return this;
+      }
+
+      private com.google.protobuf.MapField requestHeaders_;
+
+      private com.google.protobuf.MapField
+          internalGetRequestHeaders() {
+        if (requestHeaders_ == null) {
+          return com.google.protobuf.MapField.emptyMapField(
+              RequestHeadersDefaultEntryHolder.defaultEntry);
+        }
+        return requestHeaders_;
+      }
+
+      private com.google.protobuf.MapField
+          internalGetMutableRequestHeaders() {
+        onChanged();
+        ;
+        if (requestHeaders_ == null) {
+          requestHeaders_ =
+              com.google.protobuf.MapField.newMapField(
+                  RequestHeadersDefaultEntryHolder.defaultEntry);
+        }
+        if (!requestHeaders_.isMutable()) {
+          requestHeaders_ = requestHeaders_.copy();
+        }
+        return requestHeaders_;
+      }
+
+      public int getRequestHeadersCount() {
+        return internalGetRequestHeaders().getMap().size();
+      }
+      /**
+       *
+       *
+       * 
+       * The HTTP request headers to send together with fulfillment requests.
+       * 

+       *
+       * map<string, string> request_headers = 4;
+       */
+      @java.lang.Override
+      public boolean containsRequestHeaders(java.lang.String key) {
+        if (key == null) {
+          throw new java.lang.NullPointerException();
+        }
+        return internalGetRequestHeaders().getMap().containsKey(key);
+      }
+      /** Use {@link #getRequestHeadersMap()} instead. */
+      @java.lang.Override
+      @java.lang.Deprecated
+      public java.util.Map getRequestHeaders() {
+        return getRequestHeadersMap();
+      }
+      /**
+       *
+       *
+       * 
+       * The HTTP request headers to send together with fulfillment requests.
+       * 

+       *
+       * map<string, string> request_headers = 4;
+       */
+      @java.lang.Override
+      public java.util.Map getRequestHeadersMap() {
+        return internalGetRequestHeaders().getMap();
+      }
+      /**
+       *
+       *
+       * 
+       * The HTTP request headers to send together with fulfillment requests.
+       * 

+       *
+       * map<string, string> request_headers = 4;
+       */
+      @java.lang.Override
+      public java.lang.String getRequestHeadersOrDefault(
+          java.lang.String key, java.lang.String defaultValue) {
+        if (key == null) {
+          throw new java.lang.NullPointerException();
+        }
+        java.util.Map map =
+            internalGetRequestHeaders().getMap();
+        return map.containsKey(key) ? map.get(key) : defaultValue;
+      }
+      /**
+       *
+       *
+       * 
+       * The HTTP request headers to send together with fulfillment requests.
+       * 

+       *
+       * map<string, string> request_headers = 4;
+       */
+      @java.lang.Override
+      public java.lang.String getRequestHeadersOrThrow(java.lang.String key) {
+        if (key == null) {
+          throw new java.lang.NullPointerException();
+        }
+        java.util.Map map =
+            internalGetRequestHeaders().getMap();
+        if (!map.containsKey(key)) {
+          throw new java.lang.IllegalArgumentException();
+        }
+        return map.get(key);
+      }
+
+      public Builder clearRequestHeaders() {
+        internalGetMutableRequestHeaders().getMutableMap().clear();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The HTTP request headers to send together with fulfillment requests.
+       * 

+       *
+       * map<string, string> request_headers = 4;
+       */
+      public Builder removeRequestHeaders(java.lang.String key) {
+        if (key == null) {
+          throw new java.lang.NullPointerException();
+        }
+        internalGetMutableRequestHeaders().getMutableMap().remove(key);
+        return this;
+      }
+      /** Use alternate mutation accessors instead. */
+      @java.lang.Deprecated
+      public java.util.Map getMutableRequestHeaders() {
+        return internalGetMutableRequestHeaders().getMutableMap();
+      }
+      /**
+       *
+       *
+       * 
+       * The HTTP request headers to send together with fulfillment requests.
+       * 

+       *
+       * map<string, string> request_headers = 4;
+       */
+      public Builder putRequestHeaders(java.lang.String key, java.lang.String value) {
+        if (key == null) {
+          throw new java.lang.NullPointerException();
+        }
+        if (value == null) {
+          throw new java.lang.NullPointerException();
+        }
+        internalGetMutableRequestHeaders().getMutableMap().put(key, value);
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The HTTP request headers to send together with fulfillment requests.
+       * 

+       *
+       * map<string, string> request_headers = 4;
+       */
+      public Builder putAllRequestHeaders(
+          java.util.Map values) {
+        internalGetMutableRequestHeaders().getMutableMap().putAll(values);
+        return this;
+      }
+
+      private boolean isCloudFunction_;
+      /**
+       *
+       *
+       * 
+       * Optional. Indicates if generic web service is created through Cloud Functions
+       * integration. Defaults to false.
+       * is_cloud_function is deprecated. Cloud functions can be configured by
+       * its uri as a regular web service now.
+       * 

+       *
+       * 
+       * bool is_cloud_function = 5 [deprecated = true, (.google.api.field_behavior) = OPTIONAL];
+       * 
+       *
+       * @return The isCloudFunction.
+       */
+      @java.lang.Override
+      @java.lang.Deprecated
+      public boolean getIsCloudFunction() {
+        return isCloudFunction_;
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. Indicates if generic web service is created through Cloud Functions
+       * integration. Defaults to false.
+       * is_cloud_function is deprecated. Cloud functions can be configured by
+       * its uri as a regular web service now.
+       * 

+       *
+       * 
+       * bool is_cloud_function = 5 [deprecated = true, (.google.api.field_behavior) = OPTIONAL];
+       * 
+       *
+       * @param value The isCloudFunction to set.
+       * @return This builder for chaining.
+       */
+      @java.lang.Deprecated
+      public Builder setIsCloudFunction(boolean value) {
+
+        isCloudFunction_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. Indicates if generic web service is created through Cloud Functions
+       * integration. Defaults to false.
+       * is_cloud_function is deprecated. Cloud functions can be configured by
+       * its uri as a regular web service now.
+       * 

+       *
+       * 
+       * bool is_cloud_function = 5 [deprecated = true, (.google.api.field_behavior) = OPTIONAL];
+       * 
+       *
+       * @return This builder for chaining.
+       */
+      @java.lang.Deprecated
+      public Builder clearIsCloudFunction() {
+
+        isCloudFunction_ = false;
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
+
+      @java.lang.Override
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
+      }
+
+      // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService)
+    }
+
+    // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService)
+    private static final com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService
+        DEFAULT_INSTANCE;
+
+    static {
+      DEFAULT_INSTANCE = new com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService();
+    }
+
+    public static com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService
+        getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser PARSER =
+        new com.google.protobuf.AbstractParser() {
+          @java.lang.Override
+          public GenericWebService parsePartialFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+            return new GenericWebService(input, extensionRegistry);
+          }
+        };
+
+    public static com.google.protobuf.Parser parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService
+        getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+  }
+
+  public interface FeatureOrBuilder
+      extends
+      // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.v2beta1.Fulfillment.Feature)
+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     *
+     *
+     * 
+     * The type of the feature that enabled for fulfillment.
+     * 

+     *
+     * .google.cloud.dialogflow.v2beta1.Fulfillment.Feature.Type type = 1;
+     *
+     * @return The enum numeric value on the wire for type.
+     */
+    int getTypeValue();
+    /**
+     *
+     *
+     * 
+     * The type of the feature that enabled for fulfillment.
+     * 

+     *
+     * .google.cloud.dialogflow.v2beta1.Fulfillment.Feature.Type type = 1;
+     *
+     * @return The type.
+     */
+    com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature.Type getType();
+  }
+  /**
+   *
+   *
+   * 
+   * Whether fulfillment is enabled for the specific feature.
+   * 

+   *
+   * Protobuf type {@code google.cloud.dialogflow.v2beta1.Fulfillment.Feature}
+   */
+  public static final class Feature extends com.google.protobuf.GeneratedMessageV3
+      implements
+      // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.v2beta1.Fulfillment.Feature)
+      FeatureOrBuilder {
+    private static final long serialVersionUID = 0L;
+    // Use Feature.newBuilder() to construct.
+    private Feature(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+      super(builder);
+    }
+
+    private Feature() {
+      type_ = 0;
+    }
+
+    @java.lang.Override
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+      return new Feature();
+    }
+
+    @java.lang.Override
+    public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+      return this.unknownFields;
+    }
+
+    private Feature(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      this();
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+          com.google.protobuf.UnknownFieldSet.newBuilder();
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                int rawValue = input.readEnum();
+
+                type_ = rawValue;
+                break;
+              }
+            default:
+              {
+                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                  done = true;
+                }
+                break;
+              }
+          }
+        }
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.setUnfinishedMessage(this);
+      } catch (java.io.IOException e) {
+        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+      } finally {
+        this.unknownFields = unknownFields.build();
+        makeExtensionsImmutable();
+      }
+    }
+
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.v2beta1.FulfillmentProto
+          .internal_static_google_cloud_dialogflow_v2beta1_Fulfillment_Feature_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.v2beta1.FulfillmentProto
+          .internal_static_google_cloud_dialogflow_v2beta1_Fulfillment_Feature_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature.class,
+              com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature.Builder.class);
+    }
+
+    /**
+     *
+     *
+     * 
+     * The type of the feature.
+     * 

+     *
+     * Protobuf enum {@code google.cloud.dialogflow.v2beta1.Fulfillment.Feature.Type}
+     */
+    public enum Type implements com.google.protobuf.ProtocolMessageEnum {
+      /**
+       *
+       *
+       * 
+       * Feature type not specified.
+       * 

+       *
+       * TYPE_UNSPECIFIED = 0;
+       */
+      TYPE_UNSPECIFIED(0),
+      /**
+       *
+       *
+       * 
+       * Fulfillment is enabled for SmallTalk.
+       * 

+       *
+       * SMALLTALK = 1;
+       */
+      SMALLTALK(1),
+      UNRECOGNIZED(-1),
+      ;
+
+      /**
+       *
+       *
+       * 
+       * Feature type not specified.
+       * 

+       *
+       * TYPE_UNSPECIFIED = 0;
+       */
+      public static final int TYPE_UNSPECIFIED_VALUE = 0;
+      /**
+       *
+       *
+       * 
+       * Fulfillment is enabled for SmallTalk.
+       * 

+       *
+       * SMALLTALK = 1;
+       */
+      public static final int SMALLTALK_VALUE = 1;
+
+      public final int getNumber() {
+        if (this == UNRECOGNIZED) {
+          throw new java.lang.IllegalArgumentException(
+              "Can't get the number of an unknown enum value.");
+        }
+        return value;
+      }
+
+      /**
+       * @param value The numeric wire value of the corresponding enum entry.
+       * @return The enum associated with the given numeric wire value.
+       * @deprecated Use {@link #forNumber(int)} instead.
+       */
+      @java.lang.Deprecated
+      public static Type valueOf(int value) {
+        return forNumber(value);
+      }
+
+      /**
+       * @param value The numeric wire value of the corresponding enum entry.
+       * @return The enum associated with the given numeric wire value.
+       */
+      public static Type forNumber(int value) {
+        switch (value) {
+          case 0:
+            return TYPE_UNSPECIFIED;
+          case 1:
+            return SMALLTALK;
+          default:
+            return null;
+        }
+      }
+
+      public static com.google.protobuf.Internal.EnumLiteMap internalGetValueMap() {
+        return internalValueMap;
+      }
+
+      private static final com.google.protobuf.Internal.EnumLiteMap internalValueMap =
+          new com.google.protobuf.Internal.EnumLiteMap() {
+            public Type findValueByNumber(int number) {
+              return Type.forNumber(number);
+            }
+          };
+
+      public final com.google.protobuf.Descriptors.EnumValueDescriptor getValueDescriptor() {
+        if (this == UNRECOGNIZED) {
+          throw new java.lang.IllegalStateException(
+              "Can't get the descriptor of an unrecognized enum value.");
+        }
+        return getDescriptor().getValues().get(ordinal());
+      }
+
+      public final com.google.protobuf.Descriptors.EnumDescriptor getDescriptorForType() {
+        return getDescriptor();
+      }
+
+      public static final com.google.protobuf.Descriptors.EnumDescriptor getDescriptor() {
+        return com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature.getDescriptor()
+            .getEnumTypes()
+            .get(0);
+      }
+
+      private static final Type[] VALUES = values();
+
+      public static Type valueOf(com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
+        if (desc.getType() != getDescriptor()) {
+          throw new java.lang.IllegalArgumentException("EnumValueDescriptor is not for this type.");
+        }
+        if (desc.getIndex() == -1) {
+          return UNRECOGNIZED;
+        }
+        return VALUES[desc.getIndex()];
+      }
+
+      private final int value;
+
+      private Type(int value) {
+        this.value = value;
+      }
+
+      // @@protoc_insertion_point(enum_scope:google.cloud.dialogflow.v2beta1.Fulfillment.Feature.Type)
+    }
+
+    public static final int TYPE_FIELD_NUMBER = 1;
+    private int type_;
+    /**
+     *
+     *
+     * 
+     * The type of the feature that enabled for fulfillment.
+     * 

+     *
+     * .google.cloud.dialogflow.v2beta1.Fulfillment.Feature.Type type = 1;
+     *
+     * @return The enum numeric value on the wire for type.
+     */
+    @java.lang.Override
+    public int getTypeValue() {
+      return type_;
+    }
+    /**
+     *
+     *
+     * 
+     * The type of the feature that enabled for fulfillment.
+     * 

+     *
+     * .google.cloud.dialogflow.v2beta1.Fulfillment.Feature.Type type = 1;
+     *
+     * @return The type.
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature.Type getType() {
+      @SuppressWarnings("deprecation")
+      com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature.Type result =
+          com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature.Type.valueOf(type_);
+      return result == null
+          ? com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature.Type.UNRECOGNIZED
+          : result;
+    }
+
+    private byte memoizedIsInitialized = -1;
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    @java.lang.Override
+    public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+      if (type_
+          != com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature.Type.TYPE_UNSPECIFIED
+              .getNumber()) {
+        output.writeEnum(1, type_);
+      }
+      unknownFields.writeTo(output);
+    }
+
+    @java.lang.Override
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      if (type_
+          != com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature.Type.TYPE_UNSPECIFIED
+              .getNumber()) {
+        size += com.google.protobuf.CodedOutputStream.computeEnumSize(1, type_);
+      }
+      size += unknownFields.getSerializedSize();
+      memoizedSize = size;
+      return size;
+    }
+
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+        return true;
+      }
+      if (!(obj instanceof com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature)) {
+        return super.equals(obj);
+      }
+      com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature other =
+          (com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature) obj;
+
+      if (type_ != other.type_) return false;
+      if (!unknownFields.equals(other.unknownFields)) return false;
+      return true;
+    }
+
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
+      }
+      int hash = 41;
+      hash = (19 * hash) + getDescriptor().hashCode();
+      hash = (37 * hash) + TYPE_FIELD_NUMBER;
+      hash = (53 * hash) + type_;
+      hash = (29 * hash) + unknownFields.hashCode();
+      memoizedHashCode = hash;
+      return hash;
+    }
+
+    public static com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature parseFrom(
+        java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature parseFrom(
+        java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature parseFrom(byte[] data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature parseFrom(
+        byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature parseFrom(
+        java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature parseFrom(
+        java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature parseDelimitedFrom(
+        java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature parseDelimitedFrom(
+        java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature parseFrom(
+        com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature parseFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    @java.lang.Override
+    public Builder newBuilderForType() {
+      return newBuilder();
+    }
+
+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
+
+    public static Builder newBuilder(
+        com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature prototype) {
+      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    }
+
+    @java.lang.Override
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+    }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     *
+     *
+     * 
+     * Whether fulfillment is enabled for the specific feature.
+     * 

+     *
+     * Protobuf type {@code google.cloud.dialogflow.v2beta1.Fulfillment.Feature}
+     */
+    public static final class Builder
+        extends com.google.protobuf.GeneratedMessageV3.Builder
+        implements
+        // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.v2beta1.Fulfillment.Feature)
+        com.google.cloud.dialogflow.v2beta1.Fulfillment.FeatureOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.dialogflow.v2beta1.FulfillmentProto
+            .internal_static_google_cloud_dialogflow_v2beta1_Fulfillment_Feature_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.google.cloud.dialogflow.v2beta1.FulfillmentProto
+            .internal_static_google_cloud_dialogflow_v2beta1_Fulfillment_Feature_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature.class,
+                com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature.Builder.class);
+      }
+
+      // Construct using com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+
+      private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+
+      private void maybeForceBuilderInitialization() {
+        if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+      }
+
+      @java.lang.Override
+      public Builder clear() {
+        super.clear();
+        type_ = 0;
+
+        return this;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+        return com.google.cloud.dialogflow.v2beta1.FulfillmentProto
+            .internal_static_google_cloud_dialogflow_v2beta1_Fulfillment_Feature_descriptor;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature getDefaultInstanceForType() {
+        return com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature.getDefaultInstance();
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature build() {
+        com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature buildPartial() {
+        com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature result =
+            new com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature(this);
+        result.type_ = type_;
+        onBuilt();
+        return result;
+      }
+
+      @java.lang.Override
+      public Builder clone() {
+        return super.clone();
+      }
+
+      @java.lang.Override
+      public Builder setField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.setField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+        return super.clearField(field);
+      }
+
+      @java.lang.Override
+      public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+        return super.clearOneof(oneof);
+      }
+
+      @java.lang.Override
+      public Builder setRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          int index,
+          java.lang.Object value) {
+        return super.setRepeatedField(field, index, value);
+      }
+
+      @java.lang.Override
+      public Builder addRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.addRepeatedField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other instanceof com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature) {
+          return mergeFrom((com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature) other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature other) {
+        if (other == com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature.getDefaultInstance())
+          return this;
+        if (other.type_ != 0) {
+          setTypeValue(other.getTypeValue());
+        }
+        this.mergeUnknownFields(other.unknownFields);
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature parsedMessage = null;
+        try {
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage =
+              (com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature) e.getUnfinishedMessage();
+          throw e.unwrapIOException();
+        } finally {
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
+        return this;
+      }
+
+      private int type_ = 0;
+      /**
+       *
+       *
+       * 
+       * The type of the feature that enabled for fulfillment.
+       * 

+       *
+       * .google.cloud.dialogflow.v2beta1.Fulfillment.Feature.Type type = 1;
+       *
+       * @return The enum numeric value on the wire for type.
+       */
+      @java.lang.Override
+      public int getTypeValue() {
+        return type_;
+      }
+      /**
+       *
+       *
+       * 
+       * The type of the feature that enabled for fulfillment.
+       * 

+       *
+       * .google.cloud.dialogflow.v2beta1.Fulfillment.Feature.Type type = 1;
+       *
+       * @param value The enum numeric value on the wire for type to set.
+       * @return This builder for chaining.
+       */
+      public Builder setTypeValue(int value) {
+
+        type_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The type of the feature that enabled for fulfillment.
+       * 

+       *
+       * .google.cloud.dialogflow.v2beta1.Fulfillment.Feature.Type type = 1;
+       *
+       * @return The type.
+       */
+      @java.lang.Override
+      public com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature.Type getType() {
+        @SuppressWarnings("deprecation")
+        com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature.Type result =
+            com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature.Type.valueOf(type_);
+        return result == null
+            ? com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature.Type.UNRECOGNIZED
+            : result;
+      }
+      /**
+       *
+       *
+       * 
+       * The type of the feature that enabled for fulfillment.
+       * 

+       *
+       * .google.cloud.dialogflow.v2beta1.Fulfillment.Feature.Type type = 1;
+       *
+       * @param value The type to set.
+       * @return This builder for chaining.
+       */
+      public Builder setType(com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature.Type value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+
+        type_ = value.getNumber();
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The type of the feature that enabled for fulfillment.
+       * 

+       *
+       * .google.cloud.dialogflow.v2beta1.Fulfillment.Feature.Type type = 1;
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearType() {
+
+        type_ = 0;
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
+
+      @java.lang.Override
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
+      }
+
+      // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.v2beta1.Fulfillment.Feature)
+    }
+
+    // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.v2beta1.Fulfillment.Feature)
+    private static final com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature DEFAULT_INSTANCE;
+
+    static {
+      DEFAULT_INSTANCE = new com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature();
+    }
+
+    public static com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser PARSER =
+        new com.google.protobuf.AbstractParser() {
+          @java.lang.Override
+          public Feature parsePartialFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+            return new Feature(input, extensionRegistry);
+          }
+        };
+
+    public static com.google.protobuf.Parser parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+  }
+
+  private int fulfillmentCase_ = 0;
+  private java.lang.Object fulfillment_;
+
+  public enum FulfillmentCase
+      implements
+          com.google.protobuf.Internal.EnumLite,
+          com.google.protobuf.AbstractMessage.InternalOneOfEnum {
+    GENERIC_WEB_SERVICE(3),
+    FULFILLMENT_NOT_SET(0);
+    private final int value;
+
+    private FulfillmentCase(int value) {
+      this.value = value;
+    }
+    /**
+     * @param value The number of the enum to look for.
+     * @return The enum associated with the given number.
+     * @deprecated Use {@link #forNumber(int)} instead.
+     */
+    @java.lang.Deprecated
+    public static FulfillmentCase valueOf(int value) {
+      return forNumber(value);
+    }
+
+    public static FulfillmentCase forNumber(int value) {
+      switch (value) {
+        case 3:
+          return GENERIC_WEB_SERVICE;
+        case 0:
+          return FULFILLMENT_NOT_SET;
+        default:
+          return null;
+      }
+    }
+
+    public int getNumber() {
+      return this.value;
+    }
+  };
+
+  public FulfillmentCase getFulfillmentCase() {
+    return FulfillmentCase.forNumber(fulfillmentCase_);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   *
+   *
+   * 
+   * Required. The unique identifier of the fulfillment.
+   * Supported formats:
+   * - `projects/<Project ID>/agent/fulfillment`
+   * - `projects/<Project ID>/locations/<Location ID>/agent/fulfillment`
+   * This field is not used for Fulfillment in an Environment.
+   * 

+   *
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED];
+   *
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * 
+   * Required. The unique identifier of the fulfillment.
+   * Supported formats:
+   * - `projects/<Project ID>/agent/fulfillment`
+   * - `projects/<Project ID>/locations/<Location ID>/agent/fulfillment`
+   * This field is not used for Fulfillment in an Environment.
+   * 

+   *
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED];
+   *
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int DISPLAY_NAME_FIELD_NUMBER = 2;
+  private volatile java.lang.Object displayName_;
+  /**
+   *
+   *
+   * 
+   * The human-readable name of the fulfillment, unique within the agent.
+   * This field is not used for Fulfillment in an Environment.
+   * 

+   *
+   * string display_name = 2;
+   *
+   * @return The displayName.
+   */
+  @java.lang.Override
+  public java.lang.String getDisplayName() {
+    java.lang.Object ref = displayName_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      displayName_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * 
+   * The human-readable name of the fulfillment, unique within the agent.
+   * This field is not used for Fulfillment in an Environment.
+   * 

+   *
+   * string display_name = 2;
+   *
+   * @return The bytes for displayName.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getDisplayNameBytes() {
+    java.lang.Object ref = displayName_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      displayName_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int GENERIC_WEB_SERVICE_FIELD_NUMBER = 3;
+  /**
+   *
+   *
+   * 
+   * Configuration for a generic web service.
+   * 

+   *
+   * .google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService generic_web_service = 3;
+   * 
+   *
+   * @return Whether the genericWebService field is set.
+   */
+  @java.lang.Override
+  public boolean hasGenericWebService() {
+    return fulfillmentCase_ == 3;
+  }
+  /**
+   *
+   *
+   * 
+   * Configuration for a generic web service.
+   * 

+   *
+   * .google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService generic_web_service = 3;
+   * 
+   *
+   * @return The genericWebService.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService getGenericWebService() {
+    if (fulfillmentCase_ == 3) {
+      return (com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService) fulfillment_;
+    }
+    return com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService.getDefaultInstance();
+  }
+  /**
+   *
+   *
+   * 
+   * Configuration for a generic web service.
+   * 

+   *
+   * .google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService generic_web_service = 3;
+   * 
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebServiceOrBuilder
+      getGenericWebServiceOrBuilder() {
+    if (fulfillmentCase_ == 3) {
+      return (com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService) fulfillment_;
+    }
+    return com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService.getDefaultInstance();
+  }
+
+  public static final int ENABLED_FIELD_NUMBER = 4;
+  private boolean enabled_;
+  /**
+   *
+   *
+   * 
+   * Whether fulfillment is enabled.
+   * 

+   *
+   * bool enabled = 4;
+   *
+   * @return The enabled.
+   */
+  @java.lang.Override
+  public boolean getEnabled() {
+    return enabled_;
+  }
+
+  public static final int FEATURES_FIELD_NUMBER = 5;
+  private java.util.List features_;
+  /**
+   *
+   *
+   * 
+   * The field defines whether the fulfillment is enabled for certain features.
+   * 

+   *
+   * repeated .google.cloud.dialogflow.v2beta1.Fulfillment.Feature features = 5;
+   */
+  @java.lang.Override
+  public java.util.List getFeaturesList() {
+    return features_;
+  }
+  /**
+   *
+   *
+   * 
+   * The field defines whether the fulfillment is enabled for certain features.
+   * 

+   *
+   * repeated .google.cloud.dialogflow.v2beta1.Fulfillment.Feature features = 5;
+   */
+  @java.lang.Override
+  public java.util.List
+      getFeaturesOrBuilderList() {
+    return features_;
+  }
+  /**
+   *
+   *
+   * 
+   * The field defines whether the fulfillment is enabled for certain features.
+   * 

+   *
+   * repeated .google.cloud.dialogflow.v2beta1.Fulfillment.Feature features = 5;
+   */
+  @java.lang.Override
+  public int getFeaturesCount() {
+    return features_.size();
+  }
+  /**
+   *
+   *
+   * 
+   * The field defines whether the fulfillment is enabled for certain features.
+   * 

+   *
+   * repeated .google.cloud.dialogflow.v2beta1.Fulfillment.Feature features = 5;
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature getFeatures(int index) {
+    return features_.get(index);
+  }
+  /**
+   *
+   *
+   * 
+   * The field defines whether the fulfillment is enabled for certain features.
+   * 

+   *
+   * repeated .google.cloud.dialogflow.v2beta1.Fulfillment.Feature features = 5;
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.v2beta1.Fulfillment.FeatureOrBuilder getFeaturesOrBuilder(
+      int index) {
+    return features_.get(index);
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    if (!getDisplayNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, displayName_);
+    }
+    if (fulfillmentCase_ == 3) {
+      output.writeMessage(
+          3, (com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService) fulfillment_);
+    }
+    if (enabled_ != false) {
+      output.writeBool(4, enabled_);
+    }
+    for (int i = 0; i < features_.size(); i++) {
+      output.writeMessage(5, features_.get(i));
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    if (!getDisplayNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, displayName_);
+    }
+    if (fulfillmentCase_ == 3) {
+      size +=
+          com.google.protobuf.CodedOutputStream.computeMessageSize(
+              3, (com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService) fulfillment_);
+    }
+    if (enabled_ != false) {
+      size += com.google.protobuf.CodedOutputStream.computeBoolSize(4, enabled_);
+    }
+    for (int i = 0; i < features_.size(); i++) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(5, features_.get(i));
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.v2beta1.Fulfillment)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.v2beta1.Fulfillment other =
+        (com.google.cloud.dialogflow.v2beta1.Fulfillment) obj;
+
+    if (!getName().equals(other.getName())) return false;
+    if (!getDisplayName().equals(other.getDisplayName())) return false;
+    if (getEnabled() != other.getEnabled()) return false;
+    if (!getFeaturesList().equals(other.getFeaturesList())) return false;
+    if (!getFulfillmentCase().equals(other.getFulfillmentCase())) return false;
+    switch (fulfillmentCase_) {
+      case 3:
+        if (!getGenericWebService().equals(other.getGenericWebService())) return false;
+        break;
+      case 0:
+      default:
+    }
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (37 * hash) + DISPLAY_NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getDisplayName().hashCode();
+    hash = (37 * hash) + ENABLED_FIELD_NUMBER;
+    hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
+    if (getFeaturesCount() > 0) {
+      hash = (37 * hash) + FEATURES_FIELD_NUMBER;
+      hash = (53 * hash) + getFeaturesList().hashCode();
+    }
+    switch (fulfillmentCase_) {
+      case 3:
+        hash = (37 * hash) + GENERIC_WEB_SERVICE_FIELD_NUMBER;
+        hash = (53 * hash) + getGenericWebService().hashCode();
+        break;
+      case 0:
+      default:
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.Fulfillment parseFrom(java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.Fulfillment parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.Fulfillment parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.Fulfillment parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.Fulfillment parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.Fulfillment parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.Fulfillment parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.Fulfillment parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.Fulfillment parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.Fulfillment parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.Fulfillment parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.Fulfillment parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(com.google.cloud.dialogflow.v2beta1.Fulfillment prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * 
+   * By default, your agent responds to a matched intent with a static response.
+   * As an alternative, you can provide a more dynamic response by using
+   * fulfillment. When you enable fulfillment for an intent, Dialogflow responds
+   * to that intent by calling a service that you define. For example, if an
+   * end-user wants to schedule a haircut on Friday, your service can check your
+   * database and respond to the end-user with availability information for
+   * Friday.
+   * For more information, see the [fulfillment
+   * guide](https://cloud.google.com/dialogflow/docs/fulfillment-overview).
+   * 

+   *
+   * Protobuf type {@code google.cloud.dialogflow.v2beta1.Fulfillment}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.v2beta1.Fulfillment)
+      com.google.cloud.dialogflow.v2beta1.FulfillmentOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.v2beta1.FulfillmentProto
+          .internal_static_google_cloud_dialogflow_v2beta1_Fulfillment_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.v2beta1.FulfillmentProto
+          .internal_static_google_cloud_dialogflow_v2beta1_Fulfillment_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.v2beta1.Fulfillment.class,
+              com.google.cloud.dialogflow.v2beta1.Fulfillment.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.v2beta1.Fulfillment.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
+        getFeaturesFieldBuilder();
+      }
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      displayName_ = "";
+
+      enabled_ = false;
+
+      if (featuresBuilder_ == null) {
+        features_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+      } else {
+        featuresBuilder_.clear();
+      }
+      fulfillmentCase_ = 0;
+      fulfillment_ = null;
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.v2beta1.FulfillmentProto
+          .internal_static_google_cloud_dialogflow_v2beta1_Fulfillment_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.Fulfillment getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.v2beta1.Fulfillment.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.Fulfillment build() {
+      com.google.cloud.dialogflow.v2beta1.Fulfillment result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.Fulfillment buildPartial() {
+      com.google.cloud.dialogflow.v2beta1.Fulfillment result =
+          new com.google.cloud.dialogflow.v2beta1.Fulfillment(this);
+      int from_bitField0_ = bitField0_;
+      result.name_ = name_;
+      result.displayName_ = displayName_;
+      if (fulfillmentCase_ == 3) {
+        if (genericWebServiceBuilder_ == null) {
+          result.fulfillment_ = fulfillment_;
+        } else {
+          result.fulfillment_ = genericWebServiceBuilder_.build();
+        }
+      }
+      result.enabled_ = enabled_;
+      if (featuresBuilder_ == null) {
+        if (((bitField0_ & 0x00000001) != 0)) {
+          features_ = java.util.Collections.unmodifiableList(features_);
+          bitField0_ = (bitField0_ & ~0x00000001);
+        }
+        result.features_ = features_;
+      } else {
+        result.features_ = featuresBuilder_.build();
+      }
+      result.fulfillmentCase_ = fulfillmentCase_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.v2beta1.Fulfillment) {
+        return mergeFrom((com.google.cloud.dialogflow.v2beta1.Fulfillment) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.v2beta1.Fulfillment other) {
+      if (other == com.google.cloud.dialogflow.v2beta1.Fulfillment.getDefaultInstance())
+        return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      if (!other.getDisplayName().isEmpty()) {
+        displayName_ = other.displayName_;
+        onChanged();
+      }
+      if (other.getEnabled() != false) {
+        setEnabled(other.getEnabled());
+      }
+      if (featuresBuilder_ == null) {
+        if (!other.features_.isEmpty()) {
+          if (features_.isEmpty()) {
+            features_ = other.features_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+          } else {
+            ensureFeaturesIsMutable();
+            features_.addAll(other.features_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.features_.isEmpty()) {
+          if (featuresBuilder_.isEmpty()) {
+            featuresBuilder_.dispose();
+            featuresBuilder_ = null;
+            features_ = other.features_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+            featuresBuilder_ =
+                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                    ? getFeaturesFieldBuilder()
+                    : null;
+          } else {
+            featuresBuilder_.addAllMessages(other.features_);
+          }
+        }
+      }
+      switch (other.getFulfillmentCase()) {
+        case GENERIC_WEB_SERVICE:
+          {
+            mergeGenericWebService(other.getGenericWebService());
+            break;
+          }
+        case FULFILLMENT_NOT_SET:
+          {
+            break;
+          }
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.v2beta1.Fulfillment parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.dialogflow.v2beta1.Fulfillment) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private int fulfillmentCase_ = 0;
+    private java.lang.Object fulfillment_;
+
+    public FulfillmentCase getFulfillmentCase() {
+      return FulfillmentCase.forNumber(fulfillmentCase_);
+    }
+
+    public Builder clearFulfillment() {
+      fulfillmentCase_ = 0;
+      fulfillment_ = null;
+      onChanged();
+      return this;
+    }
+
+    private int bitField0_;
+
+    private java.lang.Object name_ = "";
+    /**
+     *
+     *
+     * 
+     * Required. The unique identifier of the fulfillment.
+     * Supported formats:
+     * - `projects/<Project ID>/agent/fulfillment`
+     * - `projects/<Project ID>/locations/<Location ID>/agent/fulfillment`
+     * This field is not used for Fulfillment in an Environment.
+     * 

+     *
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED];
+     *
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The unique identifier of the fulfillment.
+     * Supported formats:
+     * - `projects/<Project ID>/agent/fulfillment`
+     * - `projects/<Project ID>/locations/<Location ID>/agent/fulfillment`
+     * This field is not used for Fulfillment in an Environment.
+     * 

+     *
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED];
+     *
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The unique identifier of the fulfillment.
+     * Supported formats:
+     * - `projects/<Project ID>/agent/fulfillment`
+     * - `projects/<Project ID>/locations/<Location ID>/agent/fulfillment`
+     * This field is not used for Fulfillment in an Environment.
+     * 

+     *
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED];
+     *
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The unique identifier of the fulfillment.
+     * Supported formats:
+     * - `projects/<Project ID>/agent/fulfillment`
+     * - `projects/<Project ID>/locations/<Location ID>/agent/fulfillment`
+     * This field is not used for Fulfillment in an Environment.
+     * 

+     *
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED];
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The unique identifier of the fulfillment.
+     * Supported formats:
+     * - `projects/<Project ID>/agent/fulfillment`
+     * - `projects/<Project ID>/locations/<Location ID>/agent/fulfillment`
+     * This field is not used for Fulfillment in an Environment.
+     * 

+     *
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED];
+     *
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object displayName_ = "";
+    /**
+     *
+     *
+     * 
+     * The human-readable name of the fulfillment, unique within the agent.
+     * This field is not used for Fulfillment in an Environment.
+     * 

+     *
+     * string display_name = 2;
+     *
+     * @return The displayName.
+     */
+    public java.lang.String getDisplayName() {
+      java.lang.Object ref = displayName_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        displayName_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * The human-readable name of the fulfillment, unique within the agent.
+     * This field is not used for Fulfillment in an Environment.
+     * 

+     *
+     * string display_name = 2;
+     *
+     * @return The bytes for displayName.
+     */
+    public com.google.protobuf.ByteString getDisplayNameBytes() {
+      java.lang.Object ref = displayName_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        displayName_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * The human-readable name of the fulfillment, unique within the agent.
+     * This field is not used for Fulfillment in an Environment.
+     * 

+     *
+     * string display_name = 2;
+     *
+     * @param value The displayName to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDisplayName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      displayName_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The human-readable name of the fulfillment, unique within the agent.
+     * This field is not used for Fulfillment in an Environment.
+     * 

+     *
+     * string display_name = 2;
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearDisplayName() {
+
+      displayName_ = getDefaultInstance().getDisplayName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The human-readable name of the fulfillment, unique within the agent.
+     * This field is not used for Fulfillment in an Environment.
+     * 

+     *
+     * string display_name = 2;
+     *
+     * @param value The bytes for displayName to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDisplayNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      displayName_ = value;
+      onChanged();
+      return this;
+    }
+
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService,
+            com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService.Builder,
+            com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebServiceOrBuilder>
+        genericWebServiceBuilder_;
+    /**
+     *
+     *
+     * 
+     * Configuration for a generic web service.
+     * 

+     *
+     * .google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService generic_web_service = 3;
+     * 
+     *
+     * @return Whether the genericWebService field is set.
+     */
+    @java.lang.Override
+    public boolean hasGenericWebService() {
+      return fulfillmentCase_ == 3;
+    }
+    /**
+     *
+     *
+     * 
+     * Configuration for a generic web service.
+     * 

+     *
+     * .google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService generic_web_service = 3;
+     * 
+     *
+     * @return The genericWebService.
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService
+        getGenericWebService() {
+      if (genericWebServiceBuilder_ == null) {
+        if (fulfillmentCase_ == 3) {
+          return (com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService) fulfillment_;
+        }
+        return com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService
+            .getDefaultInstance();
+      } else {
+        if (fulfillmentCase_ == 3) {
+          return genericWebServiceBuilder_.getMessage();
+        }
+        return com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService
+            .getDefaultInstance();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Configuration for a generic web service.
+     * 

+     *
+     * .google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService generic_web_service = 3;
+     * 
+     */
+    public Builder setGenericWebService(
+        com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService value) {
+      if (genericWebServiceBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        fulfillment_ = value;
+        onChanged();
+      } else {
+        genericWebServiceBuilder_.setMessage(value);
+      }
+      fulfillmentCase_ = 3;
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Configuration for a generic web service.
+     * 

+     *
+     * .google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService generic_web_service = 3;
+     * 
+     */
+    public Builder setGenericWebService(
+        com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService.Builder builderForValue) {
+      if (genericWebServiceBuilder_ == null) {
+        fulfillment_ = builderForValue.build();
+        onChanged();
+      } else {
+        genericWebServiceBuilder_.setMessage(builderForValue.build());
+      }
+      fulfillmentCase_ = 3;
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Configuration for a generic web service.
+     * 

+     *
+     * .google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService generic_web_service = 3;
+     * 
+     */
+    public Builder mergeGenericWebService(
+        com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService value) {
+      if (genericWebServiceBuilder_ == null) {
+        if (fulfillmentCase_ == 3
+            && fulfillment_
+                != com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService
+                    .getDefaultInstance()) {
+          fulfillment_ =
+              com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService.newBuilder(
+                      (com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService)
+                          fulfillment_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          fulfillment_ = value;
+        }
+        onChanged();
+      } else {
+        if (fulfillmentCase_ == 3) {
+          genericWebServiceBuilder_.mergeFrom(value);
+        }
+        genericWebServiceBuilder_.setMessage(value);
+      }
+      fulfillmentCase_ = 3;
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Configuration for a generic web service.
+     * 

+     *
+     * .google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService generic_web_service = 3;
+     * 
+     */
+    public Builder clearGenericWebService() {
+      if (genericWebServiceBuilder_ == null) {
+        if (fulfillmentCase_ == 3) {
+          fulfillmentCase_ = 0;
+          fulfillment_ = null;
+          onChanged();
+        }
+      } else {
+        if (fulfillmentCase_ == 3) {
+          fulfillmentCase_ = 0;
+          fulfillment_ = null;
+        }
+        genericWebServiceBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Configuration for a generic web service.
+     * 

+     *
+     * .google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService generic_web_service = 3;
+     * 
+     */
+    public com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService.Builder
+        getGenericWebServiceBuilder() {
+      return getGenericWebServiceFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * 
+     * Configuration for a generic web service.
+     * 

+     *
+     * .google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService generic_web_service = 3;
+     * 
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebServiceOrBuilder
+        getGenericWebServiceOrBuilder() {
+      if ((fulfillmentCase_ == 3) && (genericWebServiceBuilder_ != null)) {
+        return genericWebServiceBuilder_.getMessageOrBuilder();
+      } else {
+        if (fulfillmentCase_ == 3) {
+          return (com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService) fulfillment_;
+        }
+        return com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService
+            .getDefaultInstance();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Configuration for a generic web service.
+     * 

+     *
+     * .google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService generic_web_service = 3;
+     * 
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService,
+            com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService.Builder,
+            com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebServiceOrBuilder>
+        getGenericWebServiceFieldBuilder() {
+      if (genericWebServiceBuilder_ == null) {
+        if (!(fulfillmentCase_ == 3)) {
+          fulfillment_ =
+              com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService
+                  .getDefaultInstance();
+        }
+        genericWebServiceBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService,
+                com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService.Builder,
+                com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebServiceOrBuilder>(
+                (com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService) fulfillment_,
+                getParentForChildren(),
+                isClean());
+        fulfillment_ = null;
+      }
+      fulfillmentCase_ = 3;
+      onChanged();
+      ;
+      return genericWebServiceBuilder_;
+    }
+
+    private boolean enabled_;
+    /**
+     *
+     *
+     * 
+     * Whether fulfillment is enabled.
+     * 

+     *
+     * bool enabled = 4;
+     *
+     * @return The enabled.
+     */
+    @java.lang.Override
+    public boolean getEnabled() {
+      return enabled_;
+    }
+    /**
+     *
+     *
+     * 
+     * Whether fulfillment is enabled.
+     * 

+     *
+     * bool enabled = 4;
+     *
+     * @param value The enabled to set.
+     * @return This builder for chaining.
+     */
+    public Builder setEnabled(boolean value) {
+
+      enabled_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Whether fulfillment is enabled.
+     * 

+     *
+     * bool enabled = 4;
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearEnabled() {
+
+      enabled_ = false;
+      onChanged();
+      return this;
+    }
+
+    private java.util.List features_ =
+        java.util.Collections.emptyList();
+
+    private void ensureFeaturesIsMutable() {
+      if (!((bitField0_ & 0x00000001) != 0)) {
+        features_ =
+            new java.util.ArrayList(
+                features_);
+        bitField0_ |= 0x00000001;
+      }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature,
+            com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature.Builder,
+            com.google.cloud.dialogflow.v2beta1.Fulfillment.FeatureOrBuilder>
+        featuresBuilder_;
+
+    /**
+     *
+     *
+     * 
+     * The field defines whether the fulfillment is enabled for certain features.
+     * 

+     *
+     * repeated .google.cloud.dialogflow.v2beta1.Fulfillment.Feature features = 5;
+     */
+    public java.util.List
+        getFeaturesList() {
+      if (featuresBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(features_);
+      } else {
+        return featuresBuilder_.getMessageList();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * The field defines whether the fulfillment is enabled for certain features.
+     * 

+     *
+     * repeated .google.cloud.dialogflow.v2beta1.Fulfillment.Feature features = 5;
+     */
+    public int getFeaturesCount() {
+      if (featuresBuilder_ == null) {
+        return features_.size();
+      } else {
+        return featuresBuilder_.getCount();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * The field defines whether the fulfillment is enabled for certain features.
+     * 

+     *
+     * repeated .google.cloud.dialogflow.v2beta1.Fulfillment.Feature features = 5;
+     */
+    public com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature getFeatures(int index) {
+      if (featuresBuilder_ == null) {
+        return features_.get(index);
+      } else {
+        return featuresBuilder_.getMessage(index);
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * The field defines whether the fulfillment is enabled for certain features.
+     * 

+     *
+     * repeated .google.cloud.dialogflow.v2beta1.Fulfillment.Feature features = 5;
+     */
+    public Builder setFeatures(
+        int index, com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature value) {
+      if (featuresBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureFeaturesIsMutable();
+        features_.set(index, value);
+        onChanged();
+      } else {
+        featuresBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The field defines whether the fulfillment is enabled for certain features.
+     * 

+     *
+     * repeated .google.cloud.dialogflow.v2beta1.Fulfillment.Feature features = 5;
+     */
+    public Builder setFeatures(
+        int index,
+        com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature.Builder builderForValue) {
+      if (featuresBuilder_ == null) {
+        ensureFeaturesIsMutable();
+        features_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        featuresBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The field defines whether the fulfillment is enabled for certain features.
+     * 

+     *
+     * repeated .google.cloud.dialogflow.v2beta1.Fulfillment.Feature features = 5;
+     */
+    public Builder addFeatures(com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature value) {
+      if (featuresBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureFeaturesIsMutable();
+        features_.add(value);
+        onChanged();
+      } else {
+        featuresBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The field defines whether the fulfillment is enabled for certain features.
+     * 

+     *
+     * repeated .google.cloud.dialogflow.v2beta1.Fulfillment.Feature features = 5;
+     */
+    public Builder addFeatures(
+        int index, com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature value) {
+      if (featuresBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureFeaturesIsMutable();
+        features_.add(index, value);
+        onChanged();
+      } else {
+        featuresBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The field defines whether the fulfillment is enabled for certain features.
+     * 

+     *
+     * repeated .google.cloud.dialogflow.v2beta1.Fulfillment.Feature features = 5;
+     */
+    public Builder addFeatures(
+        com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature.Builder builderForValue) {
+      if (featuresBuilder_ == null) {
+        ensureFeaturesIsMutable();
+        features_.add(builderForValue.build());
+        onChanged();
+      } else {
+        featuresBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The field defines whether the fulfillment is enabled for certain features.
+     * 

+     *
+     * repeated .google.cloud.dialogflow.v2beta1.Fulfillment.Feature features = 5;
+     */
+    public Builder addFeatures(
+        int index,
+        com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature.Builder builderForValue) {
+      if (featuresBuilder_ == null) {
+        ensureFeaturesIsMutable();
+        features_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        featuresBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The field defines whether the fulfillment is enabled for certain features.
+     * 

+     *
+     * repeated .google.cloud.dialogflow.v2beta1.Fulfillment.Feature features = 5;
+     */
+    public Builder addAllFeatures(
+        java.lang.Iterable
+            values) {
+      if (featuresBuilder_ == null) {
+        ensureFeaturesIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, features_);
+        onChanged();
+      } else {
+        featuresBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The field defines whether the fulfillment is enabled for certain features.
+     * 

+     *
+     * repeated .google.cloud.dialogflow.v2beta1.Fulfillment.Feature features = 5;
+     */
+    public Builder clearFeatures() {
+      if (featuresBuilder_ == null) {
+        features_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+        onChanged();
+      } else {
+        featuresBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The field defines whether the fulfillment is enabled for certain features.
+     * 

+     *
+     * repeated .google.cloud.dialogflow.v2beta1.Fulfillment.Feature features = 5;
+     */
+    public Builder removeFeatures(int index) {
+      if (featuresBuilder_ == null) {
+        ensureFeaturesIsMutable();
+        features_.remove(index);
+        onChanged();
+      } else {
+        featuresBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The field defines whether the fulfillment is enabled for certain features.
+     * 

+     *
+     * repeated .google.cloud.dialogflow.v2beta1.Fulfillment.Feature features = 5;
+     */
+    public com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature.Builder getFeaturesBuilder(
+        int index) {
+      return getFeaturesFieldBuilder().getBuilder(index);
+    }
+    /**
+     *
+     *
+     * 
+     * The field defines whether the fulfillment is enabled for certain features.
+     * 

+     *
+     * repeated .google.cloud.dialogflow.v2beta1.Fulfillment.Feature features = 5;
+     */
+    public com.google.cloud.dialogflow.v2beta1.Fulfillment.FeatureOrBuilder getFeaturesOrBuilder(
+        int index) {
+      if (featuresBuilder_ == null) {
+        return features_.get(index);
+      } else {
+        return featuresBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * The field defines whether the fulfillment is enabled for certain features.
+     * 

+     *
+     * repeated .google.cloud.dialogflow.v2beta1.Fulfillment.Feature features = 5;
+     */
+    public java.util.List<
+            ? extends com.google.cloud.dialogflow.v2beta1.Fulfillment.FeatureOrBuilder>
+        getFeaturesOrBuilderList() {
+      if (featuresBuilder_ != null) {
+        return featuresBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(features_);
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * The field defines whether the fulfillment is enabled for certain features.
+     * 

+     *
+     * repeated .google.cloud.dialogflow.v2beta1.Fulfillment.Feature features = 5;
+     */
+    public com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature.Builder addFeaturesBuilder() {
+      return getFeaturesFieldBuilder()
+          .addBuilder(com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * 
+     * The field defines whether the fulfillment is enabled for certain features.
+     * 

+     *
+     * repeated .google.cloud.dialogflow.v2beta1.Fulfillment.Feature features = 5;
+     */
+    public com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature.Builder addFeaturesBuilder(
+        int index) {
+      return getFeaturesFieldBuilder()
+          .addBuilder(
+              index, com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * 
+     * The field defines whether the fulfillment is enabled for certain features.
+     * 

+     *
+     * repeated .google.cloud.dialogflow.v2beta1.Fulfillment.Feature features = 5;
+     */
+    public java.util.List
+        getFeaturesBuilderList() {
+      return getFeaturesFieldBuilder().getBuilderList();
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature,
+            com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature.Builder,
+            com.google.cloud.dialogflow.v2beta1.Fulfillment.FeatureOrBuilder>
+        getFeaturesFieldBuilder() {
+      if (featuresBuilder_ == null) {
+        featuresBuilder_ =
+            new com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature,
+                com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature.Builder,
+                com.google.cloud.dialogflow.v2beta1.Fulfillment.FeatureOrBuilder>(
+                features_, ((bitField0_ & 0x00000001) != 0), getParentForChildren(), isClean());
+        features_ = null;
+      }
+      return featuresBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.v2beta1.Fulfillment)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.v2beta1.Fulfillment)
+  private static final com.google.cloud.dialogflow.v2beta1.Fulfillment DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.v2beta1.Fulfillment();
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.Fulfillment getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser PARSER =
+      new com.google.protobuf.AbstractParser() {
+        @java.lang.Override
+        public Fulfillment parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new Fulfillment(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.v2beta1.Fulfillment getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/FulfillmentName.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/FulfillmentName.java
new file mode 100644
index 000000000..601a74905
--- /dev/null
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/FulfillmentName.java
@@ -0,0 +1,265 @@
+/*
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.dialogflow.v2beta1;
+
+import com.google.api.core.BetaApi;
+import com.google.api.pathtemplate.PathTemplate;
+import com.google.api.pathtemplate.ValidationException;
+import com.google.api.resourcenames.ResourceName;
+import com.google.common.base.Preconditions;
+import com.google.common.collect.ImmutableMap;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS.
+@Generated("by gapic-generator-java")
+public class FulfillmentName implements ResourceName {
+  private static final PathTemplate PROJECT =
+      PathTemplate.createWithoutUrlEncoding("projects/{project}/agent/fulfillment");
+  private static final PathTemplate PROJECT_LOCATION =
+      PathTemplate.createWithoutUrlEncoding(
+          "projects/{project}/locations/{location}/agent/fulfillment");
+  private volatile Map fieldValuesMap;
+  private PathTemplate pathTemplate;
+  private String fixedValue;
+  private final String project;
+  private final String location;
+
+  @Deprecated
+  protected FulfillmentName() {
+    project = null;
+    location = null;
+  }
+
+  private FulfillmentName(Builder builder) {
+    project = Preconditions.checkNotNull(builder.getProject());
+    location = null;
+    pathTemplate = PROJECT;
+  }
+
+  private FulfillmentName(ProjectLocationBuilder builder) {
+    project = Preconditions.checkNotNull(builder.getProject());
+    location = Preconditions.checkNotNull(builder.getLocation());
+    pathTemplate = PROJECT_LOCATION;
+  }
+
+  public String getProject() {
+    return project;
+  }
+
+  public String getLocation() {
+    return location;
+  }
+
+  public static Builder newBuilder() {
+    return new Builder();
+  }
+
+  @BetaApi("The per-pattern Builders are not stable yet and may be changed in the future.")
+  public static Builder newProjectBuilder() {
+    return new Builder();
+  }
+
+  @BetaApi("The per-pattern Builders are not stable yet and may be changed in the future.")
+  public static ProjectLocationBuilder newProjectLocationBuilder() {
+    return new ProjectLocationBuilder();
+  }
+
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  public static FulfillmentName of(String project) {
+    return newBuilder().setProject(project).build();
+  }
+
+  @BetaApi("The static create methods are not stable yet and may be changed in the future.")
+  public static FulfillmentName ofProjectName(String project) {
+    return newBuilder().setProject(project).build();
+  }
+
+  @BetaApi("The static create methods are not stable yet and may be changed in the future.")
+  public static FulfillmentName ofProjectLocationName(String project, String location) {
+    return newProjectLocationBuilder().setProject(project).setLocation(location).build();
+  }
+
+  public static String format(String project) {
+    return newBuilder().setProject(project).build().toString();
+  }
+
+  @BetaApi("The static format methods are not stable yet and may be changed in the future.")
+  public static String formatProjectName(String project) {
+    return newBuilder().setProject(project).build().toString();
+  }
+
+  @BetaApi("The static format methods are not stable yet and may be changed in the future.")
+  public static String formatProjectLocationName(String project, String location) {
+    return newProjectLocationBuilder().setProject(project).setLocation(location).build().toString();
+  }
+
+  public static FulfillmentName parse(String formattedString) {
+    if (formattedString.isEmpty()) {
+      return null;
+    }
+    if (PROJECT.matches(formattedString)) {
+      Map matchMap = PROJECT.match(formattedString);
+      return ofProjectName(matchMap.get("project"));
+    } else if (PROJECT_LOCATION.matches(formattedString)) {
+      Map matchMap = PROJECT_LOCATION.match(formattedString);
+      return ofProjectLocationName(matchMap.get("project"), matchMap.get("location"));
+    }
+    throw new ValidationException("FulfillmentName.parse: formattedString not in valid format");
+  }
+
+  public static List parseList(List formattedStrings) {
+    List list = new ArrayList<>(formattedStrings.size());
+    for (String formattedString : formattedStrings) {
+      list.add(parse(formattedString));
+    }
+    return list;
+  }
+
+  public static List toStringList(List values) {
+    List list = new ArrayList<>(values.size());
+    for (FulfillmentName value : values) {
+      if (value == null) {
+        list.add("");
+      } else {
+        list.add(value.toString());
+      }
+    }
+    return list;
+  }
+
+  public static boolean isParsableFrom(String formattedString) {
+    return PROJECT.matches(formattedString) || PROJECT_LOCATION.matches(formattedString);
+  }
+
+  @Override
+  public Map getFieldValuesMap() {
+    if (fieldValuesMap == null) {
+      synchronized (this) {
+        if (fieldValuesMap == null) {
+          ImmutableMap.Builder fieldMapBuilder = ImmutableMap.builder();
+          if (project != null) {
+            fieldMapBuilder.put("project", project);
+          }
+          if (location != null) {
+            fieldMapBuilder.put("location", location);
+          }
+          fieldValuesMap = fieldMapBuilder.build();
+        }
+      }
+    }
+    return fieldValuesMap;
+  }
+
+  public String getFieldValue(String fieldName) {
+    return getFieldValuesMap().get(fieldName);
+  }
+
+  @Override
+  public String toString() {
+    return fixedValue != null ? fixedValue : pathTemplate.instantiate(getFieldValuesMap());
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (o == this) {
+      return true;
+    }
+    if (o != null || getClass() == o.getClass()) {
+      FulfillmentName that = ((FulfillmentName) o);
+      return Objects.equals(this.project, that.project)
+          && Objects.equals(this.location, that.location);
+    }
+    return false;
+  }
+
+  @Override
+  public int hashCode() {
+    int h = 1;
+    h *= 1000003;
+    h ^= Objects.hashCode(fixedValue);
+    h *= 1000003;
+    h ^= Objects.hashCode(project);
+    h *= 1000003;
+    h ^= Objects.hashCode(location);
+    return h;
+  }
+
+  /** Builder for projects/{project}/agent/fulfillment. */
+  public static class Builder {
+    private String project;
+
+    protected Builder() {}
+
+    public String getProject() {
+      return project;
+    }
+
+    public Builder setProject(String project) {
+      this.project = project;
+      return this;
+    }
+
+    private Builder(FulfillmentName fulfillmentName) {
+      Preconditions.checkArgument(
+          Objects.equals(fulfillmentName.pathTemplate, PROJECT),
+          "toBuilder is only supported when FulfillmentName has the pattern of projects/{project}/agent/fulfillment");
+      project = fulfillmentName.project;
+    }
+
+    public FulfillmentName build() {
+      return new FulfillmentName(this);
+    }
+  }
+
+  /** Builder for projects/{project}/locations/{location}/agent/fulfillment. */
+  @BetaApi("The per-pattern Builders are not stable yet and may be changed in the future.")
+  public static class ProjectLocationBuilder {
+    private String project;
+    private String location;
+
+    protected ProjectLocationBuilder() {}
+
+    public String getProject() {
+      return project;
+    }
+
+    public String getLocation() {
+      return location;
+    }
+
+    public ProjectLocationBuilder setProject(String project) {
+      this.project = project;
+      return this;
+    }
+
+    public ProjectLocationBuilder setLocation(String location) {
+      this.location = location;
+      return this;
+    }
+
+    public FulfillmentName build() {
+      return new FulfillmentName(this);
+    }
+  }
+}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/FulfillmentOrBuilder.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/FulfillmentOrBuilder.java
new file mode 100644
index 000000000..4ee65cbb1
--- /dev/null
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/FulfillmentOrBuilder.java
@@ -0,0 +1,191 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/v2beta1/fulfillment.proto
+
+package com.google.cloud.dialogflow.v2beta1;
+
+public interface FulfillmentOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.v2beta1.Fulfillment)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * 
+   * Required. The unique identifier of the fulfillment.
+   * Supported formats:
+   * - `projects/<Project ID>/agent/fulfillment`
+   * - `projects/<Project ID>/locations/<Location ID>/agent/fulfillment`
+   * This field is not used for Fulfillment in an Environment.
+   * 

+   *
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED];
+   *
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   *
+   *
+   * 
+   * Required. The unique identifier of the fulfillment.
+   * Supported formats:
+   * - `projects/<Project ID>/agent/fulfillment`
+   * - `projects/<Project ID>/locations/<Location ID>/agent/fulfillment`
+   * This field is not used for Fulfillment in an Environment.
+   * 

+   *
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED];
+   *
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString getNameBytes();
+
+  /**
+   *
+   *
+   * 
+   * The human-readable name of the fulfillment, unique within the agent.
+   * This field is not used for Fulfillment in an Environment.
+   * 

+   *
+   * string display_name = 2;
+   *
+   * @return The displayName.
+   */
+  java.lang.String getDisplayName();
+  /**
+   *
+   *
+   * 
+   * The human-readable name of the fulfillment, unique within the agent.
+   * This field is not used for Fulfillment in an Environment.
+   * 

+   *
+   * string display_name = 2;
+   *
+   * @return The bytes for displayName.
+   */
+  com.google.protobuf.ByteString getDisplayNameBytes();
+
+  /**
+   *
+   *
+   * 
+   * Configuration for a generic web service.
+   * 

+   *
+   * .google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService generic_web_service = 3;
+   * 
+   *
+   * @return Whether the genericWebService field is set.
+   */
+  boolean hasGenericWebService();
+  /**
+   *
+   *
+   * 
+   * Configuration for a generic web service.
+   * 

+   *
+   * .google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService generic_web_service = 3;
+   * 
+   *
+   * @return The genericWebService.
+   */
+  com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService getGenericWebService();
+  /**
+   *
+   *
+   * 
+   * Configuration for a generic web service.
+   * 

+   *
+   * .google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebService generic_web_service = 3;
+   * 
+   */
+  com.google.cloud.dialogflow.v2beta1.Fulfillment.GenericWebServiceOrBuilder
+      getGenericWebServiceOrBuilder();
+
+  /**
+   *
+   *
+   * 
+   * Whether fulfillment is enabled.
+   * 

+   *
+   * bool enabled = 4;
+   *
+   * @return The enabled.
+   */
+  boolean getEnabled();
+
+  /**
+   *
+   *
+   * 
+   * The field defines whether the fulfillment is enabled for certain features.
+   * 

+   *
+   * repeated .google.cloud.dialogflow.v2beta1.Fulfillment.Feature features = 5;
+   */
+  java.util.List getFeaturesList();
+  /**
+   *
+   *
+   * 
+   * The field defines whether the fulfillment is enabled for certain features.
+   * 

+   *
+   * repeated .google.cloud.dialogflow.v2beta1.Fulfillment.Feature features = 5;
+   */
+  com.google.cloud.dialogflow.v2beta1.Fulfillment.Feature getFeatures(int index);
+  /**
+   *
+   *
+   * 
+   * The field defines whether the fulfillment is enabled for certain features.
+   * 

+   *
+   * repeated .google.cloud.dialogflow.v2beta1.Fulfillment.Feature features = 5;
+   */
+  int getFeaturesCount();
+  /**
+   *
+   *
+   * 
+   * The field defines whether the fulfillment is enabled for certain features.
+   * 

+   *
+   * repeated .google.cloud.dialogflow.v2beta1.Fulfillment.Feature features = 5;
+   */
+  java.util.List
+      getFeaturesOrBuilderList();
+  /**
+   *
+   *
+   * 
+   * The field defines whether the fulfillment is enabled for certain features.
+   * 

+   *
+   * repeated .google.cloud.dialogflow.v2beta1.Fulfillment.Feature features = 5;
+   */
+  com.google.cloud.dialogflow.v2beta1.Fulfillment.FeatureOrBuilder getFeaturesOrBuilder(int index);
+
+  public com.google.cloud.dialogflow.v2beta1.Fulfillment.FulfillmentCase getFulfillmentCase();
+}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/FulfillmentProto.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/FulfillmentProto.java
new file mode 100644
index 000000000..6c3960bfc
--- /dev/null
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/FulfillmentProto.java
@@ -0,0 +1,202 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/v2beta1/fulfillment.proto
+
+package com.google.cloud.dialogflow.v2beta1;
+
+public final class FulfillmentProto {
+  private FulfillmentProto() {}
+
+  public static void registerAllExtensions(com.google.protobuf.ExtensionRegistryLite registry) {}
+
+  public static void registerAllExtensions(com.google.protobuf.ExtensionRegistry registry) {
+    registerAllExtensions((com.google.protobuf.ExtensionRegistryLite) registry);
+  }
+
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_v2beta1_Fulfillment_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_v2beta1_Fulfillment_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_v2beta1_Fulfillment_GenericWebService_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_v2beta1_Fulfillment_GenericWebService_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_v2beta1_Fulfillment_GenericWebService_RequestHeadersEntry_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_v2beta1_Fulfillment_GenericWebService_RequestHeadersEntry_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_v2beta1_Fulfillment_Feature_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_v2beta1_Fulfillment_Feature_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_v2beta1_GetFulfillmentRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_v2beta1_GetFulfillmentRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_v2beta1_UpdateFulfillmentRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_v2beta1_UpdateFulfillmentRequest_fieldAccessorTable;
+
+  public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
+    return descriptor;
+  }
+
+  private static com.google.protobuf.Descriptors.FileDescriptor descriptor;
+
+  static {
+    java.lang.String[] descriptorData = {
+      "\n1google/cloud/dialogflow/v2beta1/fulfil"
+          + "lment.proto\022\037google.cloud.dialogflow.v2b"
+          + "eta1\032\034google/api/annotations.proto\032\027goog"
+          + "le/api/client.proto\032\037google/api/field_be"
+          + "havior.proto\032\031google/api/resource.proto\032"
+          + " google/protobuf/field_mask.proto\"\237\006\n\013Fu"
+          + "lfillment\022\021\n\004name\030\001 \001(\tB\003\340A\002\022\024\n\014display_"
+          + "name\030\002 \001(\t\022]\n\023generic_web_service\030\003 \001(\0132"
+          + ">.google.cloud.dialogflow.v2beta1.Fulfil"
+          + "lment.GenericWebServiceH\000\022\017\n\007enabled\030\004 \001"
+          + "(\010\022F\n\010features\030\005 \003(\01324.google.cloud.dial"
+          + "ogflow.v2beta1.Fulfillment.Feature\032\217\002\n\021G"
+          + "enericWebService\022\020\n\003uri\030\001 \001(\tB\003\340A\002\022\020\n\010us"
+          + "ername\030\002 \001(\t\022\020\n\010password\030\003 \001(\t\022k\n\017reques"
+          + "t_headers\030\004 \003(\0132R.google.cloud.dialogflo"
+          + "w.v2beta1.Fulfillment.GenericWebService."
+          + "RequestHeadersEntry\022 \n\021is_cloud_function"
+          + "\030\005 \001(\010B\005\030\001\340A\001\0325\n\023RequestHeadersEntry\022\013\n\003"
+          + "key\030\001 \001(\t\022\r\n\005value\030\002 \001(\t:\0028\001\032\177\n\007Feature\022"
+          + "G\n\004type\030\001 \001(\01629.google.cloud.dialogflow."
+          + "v2beta1.Fulfillment.Feature.Type\"+\n\004Type"
+          + "\022\024\n\020TYPE_UNSPECIFIED\020\000\022\r\n\tSMALLTALK\020\001:\214\001"
+          + "\352A\210\001\n%dialogflow.googleapis.com/Fulfillm"
+          + "ent\022$projects/{project}/agent/fulfillmen"
+          + "t\0229projects/{project}/locations/{locatio"
+          + "n}/agent/fulfillmentB\r\n\013fulfillment\"T\n\025G"
+          + "etFulfillmentRequest\022;\n\004name\030\001 \001(\tB-\340A\002\372"
+          + "A\'\n%dialogflow.googleapis.com/Fulfillmen"
+          + "t\"\230\001\n\030UpdateFulfillmentRequest\022F\n\013fulfil"
+          + "lment\030\001 \001(\0132,.google.cloud.dialogflow.v2"
+          + "beta1.FulfillmentB\003\340A\002\0224\n\013update_mask\030\002 "
+          + "\001(\0132\032.google.protobuf.FieldMaskB\003\340A\0022\271\005\n"
+          + "\014Fulfillments\022\357\001\n\016GetFulfillment\0226.googl"
+          + "e.cloud.dialogflow.v2beta1.GetFulfillmen"
+          + "tRequest\032,.google.cloud.dialogflow.v2bet"
+          + "a1.Fulfillment\"w\202\323\344\223\002j\022,/v2beta1/{name=p"
+          + "rojects/*/agent/fulfillment}Z:\0228/v2beta1"
+          + "/{name=projects/*/locations/*/agent/fulf"
+          + "illment}\332A\004name\022\274\002\n\021UpdateFulfillment\0229."
+          + "google.cloud.dialogflow.v2beta1.UpdateFu"
+          + "lfillmentRequest\032,.google.cloud.dialogfl"
+          + "ow.v2beta1.Fulfillment\"\275\001\202\323\344\223\002\234\00128/v2bet"
+          + "a1/{fulfillment.name=projects/*/agent/fu"
+          + "lfillment}:\013fulfillmentZS2D/v2beta1/{ful"
+          + "fillment.name=projects/*/locations/*/age"
+          + "nt/fulfillment}:\013fulfillment\332A\027fulfillme"
+          + "nt,update_mask\032x\312A\031dialogflow.googleapis"
+          + ".com\322AYhttps://www.googleapis.com/auth/c"
+          + "loud-platform,https://www.googleapis.com"
+          + "/auth/dialogflowB\256\001\n#com.google.cloud.di"
+          + "alogflow.v2beta1B\020FulfillmentProtoP\001ZIgo"
+          + "ogle.golang.org/genproto/googleapis/clou"
+          + "d/dialogflow/v2beta1;dialogflow\370\001\001\242\002\002DF\252"
+          + "\002\037Google.Cloud.Dialogflow.V2beta1b\006proto"
+          + "3"
+    };
+    descriptor =
+        com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
+            descriptorData,
+            new com.google.protobuf.Descriptors.FileDescriptor[] {
+              com.google.api.AnnotationsProto.getDescriptor(),
+              com.google.api.ClientProto.getDescriptor(),
+              com.google.api.FieldBehaviorProto.getDescriptor(),
+              com.google.api.ResourceProto.getDescriptor(),
+              com.google.protobuf.FieldMaskProto.getDescriptor(),
+            });
+    internal_static_google_cloud_dialogflow_v2beta1_Fulfillment_descriptor =
+        getDescriptor().getMessageTypes().get(0);
+    internal_static_google_cloud_dialogflow_v2beta1_Fulfillment_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_v2beta1_Fulfillment_descriptor,
+            new java.lang.String[] {
+              "Name", "DisplayName", "GenericWebService", "Enabled", "Features", "Fulfillment",
+            });
+    internal_static_google_cloud_dialogflow_v2beta1_Fulfillment_GenericWebService_descriptor =
+        internal_static_google_cloud_dialogflow_v2beta1_Fulfillment_descriptor
+            .getNestedTypes()
+            .get(0);
+    internal_static_google_cloud_dialogflow_v2beta1_Fulfillment_GenericWebService_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_v2beta1_Fulfillment_GenericWebService_descriptor,
+            new java.lang.String[] {
+              "Uri", "Username", "Password", "RequestHeaders", "IsCloudFunction",
+            });
+    internal_static_google_cloud_dialogflow_v2beta1_Fulfillment_GenericWebService_RequestHeadersEntry_descriptor =
+        internal_static_google_cloud_dialogflow_v2beta1_Fulfillment_GenericWebService_descriptor
+            .getNestedTypes()
+            .get(0);
+    internal_static_google_cloud_dialogflow_v2beta1_Fulfillment_GenericWebService_RequestHeadersEntry_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_v2beta1_Fulfillment_GenericWebService_RequestHeadersEntry_descriptor,
+            new java.lang.String[] {
+              "Key", "Value",
+            });
+    internal_static_google_cloud_dialogflow_v2beta1_Fulfillment_Feature_descriptor =
+        internal_static_google_cloud_dialogflow_v2beta1_Fulfillment_descriptor
+            .getNestedTypes()
+            .get(1);
+    internal_static_google_cloud_dialogflow_v2beta1_Fulfillment_Feature_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_v2beta1_Fulfillment_Feature_descriptor,
+            new java.lang.String[] {
+              "Type",
+            });
+    internal_static_google_cloud_dialogflow_v2beta1_GetFulfillmentRequest_descriptor =
+        getDescriptor().getMessageTypes().get(1);
+    internal_static_google_cloud_dialogflow_v2beta1_GetFulfillmentRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_v2beta1_GetFulfillmentRequest_descriptor,
+            new java.lang.String[] {
+              "Name",
+            });
+    internal_static_google_cloud_dialogflow_v2beta1_UpdateFulfillmentRequest_descriptor =
+        getDescriptor().getMessageTypes().get(2);
+    internal_static_google_cloud_dialogflow_v2beta1_UpdateFulfillmentRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_v2beta1_UpdateFulfillmentRequest_descriptor,
+            new java.lang.String[] {
+              "Fulfillment", "UpdateMask",
+            });
+    com.google.protobuf.ExtensionRegistry registry =
+        com.google.protobuf.ExtensionRegistry.newInstance();
+    registry.add(com.google.api.ClientProto.defaultHost);
+    registry.add(com.google.api.FieldBehaviorProto.fieldBehavior);
+    registry.add(com.google.api.AnnotationsProto.http);
+    registry.add(com.google.api.ClientProto.methodSignature);
+    registry.add(com.google.api.ClientProto.oauthScopes);
+    registry.add(com.google.api.ResourceProto.resource);
+    registry.add(com.google.api.ResourceProto.resourceReference);
+    com.google.protobuf.Descriptors.FileDescriptor.internalUpdateFileDescriptor(
+        descriptor, registry);
+    com.google.api.AnnotationsProto.getDescriptor();
+    com.google.api.ClientProto.getDescriptor();
+    com.google.api.FieldBehaviorProto.getDescriptor();
+    com.google.api.ResourceProto.getDescriptor();
+    com.google.protobuf.FieldMaskProto.getDescriptor();
+  }
+
+  // @@protoc_insertion_point(outer_class_scope)
+}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetAnswerRecordRequest.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetAnswerRecordRequest.java
index bda2fbe74..cf9461f53 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetAnswerRecordRequest.java
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetAnswerRecordRequest.java
@@ -22,8 +22,7 @@
  *
  *
  * 
- * Request message for
- * [AnswerRecords.GetAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.GetAnswerRecord].
+ * Request message for [AnswerRecords.GetAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.GetAnswerRecord].
  * 

  *
  * Protobuf type {@code google.cloud.dialogflow.v2beta1.GetAnswerRecordRequest}
@@ -329,8 +328,7 @@ protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.Build
    *
    *
    * 
-   * Request message for
-   * [AnswerRecords.GetAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.GetAnswerRecord].
+   * Request message for [AnswerRecords.GetAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.GetAnswerRecord].
    * 

    *
    * Protobuf type {@code google.cloud.dialogflow.v2beta1.GetAnswerRecordRequest}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetConversationRequest.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetConversationRequest.java
index d0c26af45..250645519 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetConversationRequest.java
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetConversationRequest.java
@@ -22,8 +22,7 @@
  *
  *
  * 
- * The request message for
- * [Conversations.GetConversation][google.cloud.dialogflow.v2beta1.Conversations.GetConversation].
+ * The request message for [Conversations.GetConversation][google.cloud.dialogflow.v2beta1.Conversations.GetConversation].
  * 

  *
  * Protobuf type {@code google.cloud.dialogflow.v2beta1.GetConversationRequest}
@@ -333,8 +332,7 @@ protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.Build
    *
    *
    * 
-   * The request message for
-   * [Conversations.GetConversation][google.cloud.dialogflow.v2beta1.Conversations.GetConversation].
+   * The request message for [Conversations.GetConversation][google.cloud.dialogflow.v2beta1.Conversations.GetConversation].
    * 

    *
    * Protobuf type {@code google.cloud.dialogflow.v2beta1.GetConversationRequest}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetEnvironmentHistoryRequest.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetEnvironmentHistoryRequest.java
new file mode 100644
index 000000000..0c59b7fe0
--- /dev/null
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetEnvironmentHistoryRequest.java
@@ -0,0 +1,959 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/v2beta1/environment.proto
+
+package com.google.cloud.dialogflow.v2beta1;
+
+/**
+ *
+ *
+ * 
+ * The request message for [Environments.GetEnvironmentHistory][google.cloud.dialogflow.v2beta1.Environments.GetEnvironmentHistory].
+ * 

+ *
+ * Protobuf type {@code google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest}
+ */
+public final class GetEnvironmentHistoryRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest)
+    GetEnvironmentHistoryRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use GetEnvironmentHistoryRequest.newBuilder() to construct.
+  private GetEnvironmentHistoryRequest(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+    super(builder);
+  }
+
+  private GetEnvironmentHistoryRequest() {
+    parent_ = "";
+    pageToken_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new GetEnvironmentHistoryRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private GetEnvironmentHistoryRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              parent_ = s;
+              break;
+            }
+          case 16:
+            {
+              pageSize_ = input.readInt32();
+              break;
+            }
+          case 26:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              pageToken_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.v2beta1.EnvironmentProto
+        .internal_static_google_cloud_dialogflow_v2beta1_GetEnvironmentHistoryRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.v2beta1.EnvironmentProto
+        .internal_static_google_cloud_dialogflow_v2beta1_GetEnvironmentHistoryRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest.class,
+            com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest.Builder.class);
+  }
+
+  public static final int PARENT_FIELD_NUMBER = 1;
+  private volatile java.lang.Object parent_;
+  /**
+   *
+   *
+   * 
+   * Required. The name of the environment to retrieve history for.
+   * Supported formats:
+   * - `projects/<Project Number / ID>/agent/environments/<Environment ID>`
+   * - `projects/<Project Number / ID>/locations/<Location
+   *   ID>/agent/environments/<Environment ID>`
+   * 

+   *
+   * 
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
+   *
+   * @return The parent.
+   */
+  @java.lang.Override
+  public java.lang.String getParent() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      parent_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * 
+   * Required. The name of the environment to retrieve history for.
+   * Supported formats:
+   * - `projects/<Project Number / ID>/agent/environments/<Environment ID>`
+   * - `projects/<Project Number / ID>/locations/<Location
+   *   ID>/agent/environments/<Environment ID>`
+   * 

+   *
+   * 
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
+   *
+   * @return The bytes for parent.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getParentBytes() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      parent_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int PAGE_SIZE_FIELD_NUMBER = 2;
+  private int pageSize_;
+  /**
+   *
+   *
+   * 
+   * Optional. The maximum number of items to return in a single page. By default 100 and
+   * at most 1000.
+   * 

+   *
+   * int32 page_size = 2 [(.google.api.field_behavior) = OPTIONAL];
+   *
+   * @return The pageSize.
+   */
+  @java.lang.Override
+  public int getPageSize() {
+    return pageSize_;
+  }
+
+  public static final int PAGE_TOKEN_FIELD_NUMBER = 3;
+  private volatile java.lang.Object pageToken_;
+  /**
+   *
+   *
+   * 
+   * Optional. The next_page_token value returned from a previous list request.
+   * 

+   *
+   * string page_token = 3 [(.google.api.field_behavior) = OPTIONAL];
+   *
+   * @return The pageToken.
+   */
+  @java.lang.Override
+  public java.lang.String getPageToken() {
+    java.lang.Object ref = pageToken_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      pageToken_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * 
+   * Optional. The next_page_token value returned from a previous list request.
+   * 

+   *
+   * string page_token = 3 [(.google.api.field_behavior) = OPTIONAL];
+   *
+   * @return The bytes for pageToken.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getPageTokenBytes() {
+    java.lang.Object ref = pageToken_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      pageToken_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getParentBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, parent_);
+    }
+    if (pageSize_ != 0) {
+      output.writeInt32(2, pageSize_);
+    }
+    if (!getPageTokenBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 3, pageToken_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getParentBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, parent_);
+    }
+    if (pageSize_ != 0) {
+      size += com.google.protobuf.CodedOutputStream.computeInt32Size(2, pageSize_);
+    }
+    if (!getPageTokenBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, pageToken_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest other =
+        (com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest) obj;
+
+    if (!getParent().equals(other.getParent())) return false;
+    if (getPageSize() != other.getPageSize()) return false;
+    if (!getPageToken().equals(other.getPageToken())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + PARENT_FIELD_NUMBER;
+    hash = (53 * hash) + getParent().hashCode();
+    hash = (37 * hash) + PAGE_SIZE_FIELD_NUMBER;
+    hash = (53 * hash) + getPageSize();
+    hash = (37 * hash) + PAGE_TOKEN_FIELD_NUMBER;
+    hash = (53 * hash) + getPageToken().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest parseFrom(
+      byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * 
+   * The request message for [Environments.GetEnvironmentHistory][google.cloud.dialogflow.v2beta1.Environments.GetEnvironmentHistory].
+   * 

+   *
+   * Protobuf type {@code google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest)
+      com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.v2beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_v2beta1_GetEnvironmentHistoryRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.v2beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_v2beta1_GetEnvironmentHistoryRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest.class,
+              com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      parent_ = "";
+
+      pageSize_ = 0;
+
+      pageToken_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.v2beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_v2beta1_GetEnvironmentHistoryRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest
+        getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest build() {
+      com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest buildPartial() {
+      com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest result =
+          new com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest(this);
+      result.parent_ = parent_;
+      result.pageSize_ = pageSize_;
+      result.pageToken_ = pageToken_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(
+        com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest other) {
+      if (other
+          == com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest.getDefaultInstance())
+        return this;
+      if (!other.getParent().isEmpty()) {
+        parent_ = other.parent_;
+        onChanged();
+      }
+      if (other.getPageSize() != 0) {
+        setPageSize(other.getPageSize());
+      }
+      if (!other.getPageToken().isEmpty()) {
+        pageToken_ = other.pageToken_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest)
+                e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object parent_ = "";
+    /**
+     *
+     *
+     * 
+     * Required. The name of the environment to retrieve history for.
+     * Supported formats:
+     * - `projects/<Project Number / ID>/agent/environments/<Environment ID>`
+     * - `projects/<Project Number / ID>/locations/<Location
+     *   ID>/agent/environments/<Environment ID>`
+     * 

+     *
+     * 
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @return The parent.
+     */
+    public java.lang.String getParent() {
+      java.lang.Object ref = parent_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        parent_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The name of the environment to retrieve history for.
+     * Supported formats:
+     * - `projects/<Project Number / ID>/agent/environments/<Environment ID>`
+     * - `projects/<Project Number / ID>/locations/<Location
+     *   ID>/agent/environments/<Environment ID>`
+     * 

+     *
+     * 
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @return The bytes for parent.
+     */
+    public com.google.protobuf.ByteString getParentBytes() {
+      java.lang.Object ref = parent_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        parent_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The name of the environment to retrieve history for.
+     * Supported formats:
+     * - `projects/<Project Number / ID>/agent/environments/<Environment ID>`
+     * - `projects/<Project Number / ID>/locations/<Location
+     *   ID>/agent/environments/<Environment ID>`
+     * 

+     *
+     * 
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @param value The parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParent(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The name of the environment to retrieve history for.
+     * Supported formats:
+     * - `projects/<Project Number / ID>/agent/environments/<Environment ID>`
+     * - `projects/<Project Number / ID>/locations/<Location
+     *   ID>/agent/environments/<Environment ID>`
+     * 

+     *
+     * 
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearParent() {
+
+      parent_ = getDefaultInstance().getParent();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The name of the environment to retrieve history for.
+     * Supported formats:
+     * - `projects/<Project Number / ID>/agent/environments/<Environment ID>`
+     * - `projects/<Project Number / ID>/locations/<Location
+     *   ID>/agent/environments/<Environment ID>`
+     * 

+     *
+     * 
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @param value The bytes for parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParentBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+
+    private int pageSize_;
+    /**
+     *
+     *
+     * 
+     * Optional. The maximum number of items to return in a single page. By default 100 and
+     * at most 1000.
+     * 

+     *
+     * int32 page_size = 2 [(.google.api.field_behavior) = OPTIONAL];
+     *
+     * @return The pageSize.
+     */
+    @java.lang.Override
+    public int getPageSize() {
+      return pageSize_;
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. The maximum number of items to return in a single page. By default 100 and
+     * at most 1000.
+     * 

+     *
+     * int32 page_size = 2 [(.google.api.field_behavior) = OPTIONAL];
+     *
+     * @param value The pageSize to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageSize(int value) {
+
+      pageSize_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. The maximum number of items to return in a single page. By default 100 and
+     * at most 1000.
+     * 

+     *
+     * int32 page_size = 2 [(.google.api.field_behavior) = OPTIONAL];
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearPageSize() {
+
+      pageSize_ = 0;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object pageToken_ = "";
+    /**
+     *
+     *
+     * 
+     * Optional. The next_page_token value returned from a previous list request.
+     * 

+     *
+     * string page_token = 3 [(.google.api.field_behavior) = OPTIONAL];
+     *
+     * @return The pageToken.
+     */
+    public java.lang.String getPageToken() {
+      java.lang.Object ref = pageToken_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        pageToken_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. The next_page_token value returned from a previous list request.
+     * 

+     *
+     * string page_token = 3 [(.google.api.field_behavior) = OPTIONAL];
+     *
+     * @return The bytes for pageToken.
+     */
+    public com.google.protobuf.ByteString getPageTokenBytes() {
+      java.lang.Object ref = pageToken_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        pageToken_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. The next_page_token value returned from a previous list request.
+     * 

+     *
+     * string page_token = 3 [(.google.api.field_behavior) = OPTIONAL];
+     *
+     * @param value The pageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageToken(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      pageToken_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. The next_page_token value returned from a previous list request.
+     * 

+     *
+     * string page_token = 3 [(.google.api.field_behavior) = OPTIONAL];
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearPageToken() {
+
+      pageToken_ = getDefaultInstance().getPageToken();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. The next_page_token value returned from a previous list request.
+     * 

+     *
+     * string page_token = 3 [(.google.api.field_behavior) = OPTIONAL];
+     *
+     * @param value The bytes for pageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageTokenBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      pageToken_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest)
+  private static final com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest
+      DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest();
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest
+      getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser PARSER =
+      new com.google.protobuf.AbstractParser() {
+        @java.lang.Override
+        public GetEnvironmentHistoryRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new GetEnvironmentHistoryRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest
+      getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetEnvironmentHistoryRequestOrBuilder.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetEnvironmentHistoryRequestOrBuilder.java
new file mode 100644
index 000000000..7c5c4740c
--- /dev/null
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetEnvironmentHistoryRequestOrBuilder.java
@@ -0,0 +1,101 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/v2beta1/environment.proto
+
+package com.google.cloud.dialogflow.v2beta1;
+
+public interface GetEnvironmentHistoryRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.v2beta1.GetEnvironmentHistoryRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * 
+   * Required. The name of the environment to retrieve history for.
+   * Supported formats:
+   * - `projects/<Project Number / ID>/agent/environments/<Environment ID>`
+   * - `projects/<Project Number / ID>/locations/<Location
+   *   ID>/agent/environments/<Environment ID>`
+   * 

+   *
+   * 
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
+   *
+   * @return The parent.
+   */
+  java.lang.String getParent();
+  /**
+   *
+   *
+   * 
+   * Required. The name of the environment to retrieve history for.
+   * Supported formats:
+   * - `projects/<Project Number / ID>/agent/environments/<Environment ID>`
+   * - `projects/<Project Number / ID>/locations/<Location
+   *   ID>/agent/environments/<Environment ID>`
+   * 

+   *
+   * 
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
+   *
+   * @return The bytes for parent.
+   */
+  com.google.protobuf.ByteString getParentBytes();
+
+  /**
+   *
+   *
+   * 
+   * Optional. The maximum number of items to return in a single page. By default 100 and
+   * at most 1000.
+   * 

+   *
+   * int32 page_size = 2 [(.google.api.field_behavior) = OPTIONAL];
+   *
+   * @return The pageSize.
+   */
+  int getPageSize();
+
+  /**
+   *
+   *
+   * 
+   * Optional. The next_page_token value returned from a previous list request.
+   * 

+   *
+   * string page_token = 3 [(.google.api.field_behavior) = OPTIONAL];
+   *
+   * @return The pageToken.
+   */
+  java.lang.String getPageToken();
+  /**
+   *
+   *
+   * 
+   * Optional. The next_page_token value returned from a previous list request.
+   * 

+   *
+   * string page_token = 3 [(.google.api.field_behavior) = OPTIONAL];
+   *
+   * @return The bytes for pageToken.
+   */
+  com.google.protobuf.ByteString getPageTokenBytes();
+}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetEnvironmentRequest.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetEnvironmentRequest.java
new file mode 100644
index 000000000..1fe15ff61
--- /dev/null
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetEnvironmentRequest.java
@@ -0,0 +1,679 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/v2beta1/environment.proto
+
+package com.google.cloud.dialogflow.v2beta1;
+
+/**
+ *
+ *
+ * 
+ * The request message for [Environments.GetEnvironment][google.cloud.dialogflow.v2beta1.Environments.GetEnvironment].
+ * 

+ *
+ * Protobuf type {@code google.cloud.dialogflow.v2beta1.GetEnvironmentRequest}
+ */
+public final class GetEnvironmentRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.v2beta1.GetEnvironmentRequest)
+    GetEnvironmentRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use GetEnvironmentRequest.newBuilder() to construct.
+  private GetEnvironmentRequest(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+    super(builder);
+  }
+
+  private GetEnvironmentRequest() {
+    name_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new GetEnvironmentRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private GetEnvironmentRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              name_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.v2beta1.EnvironmentProto
+        .internal_static_google_cloud_dialogflow_v2beta1_GetEnvironmentRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.v2beta1.EnvironmentProto
+        .internal_static_google_cloud_dialogflow_v2beta1_GetEnvironmentRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest.class,
+            com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest.Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   *
+   *
+   * 
+   * Required. The name of the environment.
+   * Supported formats:
+   * - `projects/<Project Number / ID>/agent/environments/<Environment ID>`
+   * - `projects/<Project Number / ID>/locations/<Location
+   *   ID>/agent/environments/<Environment ID>`
+   * 

+   *
+   * 
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
+   *
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * 
+   * Required. The name of the environment.
+   * Supported formats:
+   * - `projects/<Project Number / ID>/agent/environments/<Environment ID>`
+   * - `projects/<Project Number / ID>/locations/<Location
+   *   ID>/agent/environments/<Environment ID>`
+   * 

+   *
+   * 
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
+   *
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest other =
+        (com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest) obj;
+
+    if (!getName().equals(other.getName())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * 
+   * The request message for [Environments.GetEnvironment][google.cloud.dialogflow.v2beta1.Environments.GetEnvironment].
+   * 

+   *
+   * Protobuf type {@code google.cloud.dialogflow.v2beta1.GetEnvironmentRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.v2beta1.GetEnvironmentRequest)
+      com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.v2beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_v2beta1_GetEnvironmentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.v2beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_v2beta1_GetEnvironmentRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest.class,
+              com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.v2beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_v2beta1_GetEnvironmentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest build() {
+      com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest buildPartial() {
+      com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest result =
+          new com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest(this);
+      result.name_ = name_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest other) {
+      if (other == com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest.getDefaultInstance())
+        return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     *
+     *
+     * 
+     * Required. The name of the environment.
+     * Supported formats:
+     * - `projects/<Project Number / ID>/agent/environments/<Environment ID>`
+     * - `projects/<Project Number / ID>/locations/<Location
+     *   ID>/agent/environments/<Environment ID>`
+     * 

+     *
+     * 
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The name of the environment.
+     * Supported formats:
+     * - `projects/<Project Number / ID>/agent/environments/<Environment ID>`
+     * - `projects/<Project Number / ID>/locations/<Location
+     *   ID>/agent/environments/<Environment ID>`
+     * 

+     *
+     * 
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The name of the environment.
+     * Supported formats:
+     * - `projects/<Project Number / ID>/agent/environments/<Environment ID>`
+     * - `projects/<Project Number / ID>/locations/<Location
+     *   ID>/agent/environments/<Environment ID>`
+     * 

+     *
+     * 
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The name of the environment.
+     * Supported formats:
+     * - `projects/<Project Number / ID>/agent/environments/<Environment ID>`
+     * - `projects/<Project Number / ID>/locations/<Location
+     *   ID>/agent/environments/<Environment ID>`
+     * 

+     *
+     * 
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The name of the environment.
+     * Supported formats:
+     * - `projects/<Project Number / ID>/agent/environments/<Environment ID>`
+     * - `projects/<Project Number / ID>/locations/<Location
+     *   ID>/agent/environments/<Environment ID>`
+     * 

+     *
+     * 
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.v2beta1.GetEnvironmentRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.v2beta1.GetEnvironmentRequest)
+  private static final com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest();
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser PARSER =
+      new com.google.protobuf.AbstractParser() {
+        @java.lang.Override
+        public GetEnvironmentRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new GetEnvironmentRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.v2beta1.GetEnvironmentRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetEnvironmentRequestOrBuilder.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetEnvironmentRequestOrBuilder.java
new file mode 100644
index 000000000..22721ceb6
--- /dev/null
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetEnvironmentRequestOrBuilder.java
@@ -0,0 +1,62 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/v2beta1/environment.proto
+
+package com.google.cloud.dialogflow.v2beta1;
+
+public interface GetEnvironmentRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.v2beta1.GetEnvironmentRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * 
+   * Required. The name of the environment.
+   * Supported formats:
+   * - `projects/<Project Number / ID>/agent/environments/<Environment ID>`
+   * - `projects/<Project Number / ID>/locations/<Location
+   *   ID>/agent/environments/<Environment ID>`
+   * 

+   *
+   * 
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
+   *
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   *
+   *
+   * 
+   * Required. The name of the environment.
+   * Supported formats:
+   * - `projects/<Project Number / ID>/agent/environments/<Environment ID>`
+   * - `projects/<Project Number / ID>/locations/<Location
+   *   ID>/agent/environments/<Environment ID>`
+   * 

+   *
+   * 
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
+   *
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString getNameBytes();
+}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetFulfillmentRequest.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetFulfillmentRequest.java
new file mode 100644
index 000000000..7d79c3b42
--- /dev/null
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetFulfillmentRequest.java
@@ -0,0 +1,672 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/v2beta1/fulfillment.proto
+
+package com.google.cloud.dialogflow.v2beta1;
+
+/**
+ *
+ *
+ * 
+ * The request message for [Fulfillments.GetFulfillment][google.cloud.dialogflow.v2beta1.Fulfillments.GetFulfillment].
+ * 

+ *
+ * Protobuf type {@code google.cloud.dialogflow.v2beta1.GetFulfillmentRequest}
+ */
+public final class GetFulfillmentRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.v2beta1.GetFulfillmentRequest)
+    GetFulfillmentRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use GetFulfillmentRequest.newBuilder() to construct.
+  private GetFulfillmentRequest(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+    super(builder);
+  }
+
+  private GetFulfillmentRequest() {
+    name_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new GetFulfillmentRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private GetFulfillmentRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              name_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.v2beta1.FulfillmentProto
+        .internal_static_google_cloud_dialogflow_v2beta1_GetFulfillmentRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.v2beta1.FulfillmentProto
+        .internal_static_google_cloud_dialogflow_v2beta1_GetFulfillmentRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest.class,
+            com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest.Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   *
+   *
+   * 
+   * Required. The name of the fulfillment.
+   * Supported formats:
+   * - `projects/<Project ID>/agent/fulfillment`
+   * - `projects/<Project ID>/locations/<Location ID>/agent/fulfillment`
+   * 

+   *
+   * 
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
+   *
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * 
+   * Required. The name of the fulfillment.
+   * Supported formats:
+   * - `projects/<Project ID>/agent/fulfillment`
+   * - `projects/<Project ID>/locations/<Location ID>/agent/fulfillment`
+   * 

+   *
+   * 
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
+   *
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest other =
+        (com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest) obj;
+
+    if (!getName().equals(other.getName())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * 
+   * The request message for [Fulfillments.GetFulfillment][google.cloud.dialogflow.v2beta1.Fulfillments.GetFulfillment].
+   * 

+   *
+   * Protobuf type {@code google.cloud.dialogflow.v2beta1.GetFulfillmentRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.v2beta1.GetFulfillmentRequest)
+      com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.v2beta1.FulfillmentProto
+          .internal_static_google_cloud_dialogflow_v2beta1_GetFulfillmentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.v2beta1.FulfillmentProto
+          .internal_static_google_cloud_dialogflow_v2beta1_GetFulfillmentRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest.class,
+              com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.v2beta1.FulfillmentProto
+          .internal_static_google_cloud_dialogflow_v2beta1_GetFulfillmentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest build() {
+      com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest buildPartial() {
+      com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest result =
+          new com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest(this);
+      result.name_ = name_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest other) {
+      if (other == com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest.getDefaultInstance())
+        return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     *
+     *
+     * 
+     * Required. The name of the fulfillment.
+     * Supported formats:
+     * - `projects/<Project ID>/agent/fulfillment`
+     * - `projects/<Project ID>/locations/<Location ID>/agent/fulfillment`
+     * 

+     *
+     * 
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The name of the fulfillment.
+     * Supported formats:
+     * - `projects/<Project ID>/agent/fulfillment`
+     * - `projects/<Project ID>/locations/<Location ID>/agent/fulfillment`
+     * 

+     *
+     * 
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The name of the fulfillment.
+     * Supported formats:
+     * - `projects/<Project ID>/agent/fulfillment`
+     * - `projects/<Project ID>/locations/<Location ID>/agent/fulfillment`
+     * 

+     *
+     * 
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The name of the fulfillment.
+     * Supported formats:
+     * - `projects/<Project ID>/agent/fulfillment`
+     * - `projects/<Project ID>/locations/<Location ID>/agent/fulfillment`
+     * 

+     *
+     * 
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The name of the fulfillment.
+     * Supported formats:
+     * - `projects/<Project ID>/agent/fulfillment`
+     * - `projects/<Project ID>/locations/<Location ID>/agent/fulfillment`
+     * 

+     *
+     * 
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.v2beta1.GetFulfillmentRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.v2beta1.GetFulfillmentRequest)
+  private static final com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest();
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser PARSER =
+      new com.google.protobuf.AbstractParser() {
+        @java.lang.Override
+        public GetFulfillmentRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new GetFulfillmentRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.v2beta1.GetFulfillmentRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetFulfillmentRequestOrBuilder.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetFulfillmentRequestOrBuilder.java
new file mode 100644
index 000000000..71207da83
--- /dev/null
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetFulfillmentRequestOrBuilder.java
@@ -0,0 +1,60 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/v2beta1/fulfillment.proto
+
+package com.google.cloud.dialogflow.v2beta1;
+
+public interface GetFulfillmentRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.v2beta1.GetFulfillmentRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * 
+   * Required. The name of the fulfillment.
+   * Supported formats:
+   * - `projects/<Project ID>/agent/fulfillment`
+   * - `projects/<Project ID>/locations/<Location ID>/agent/fulfillment`
+   * 

+   *
+   * 
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
+   *
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   *
+   *
+   * 
+   * Required. The name of the fulfillment.
+   * Supported formats:
+   * - `projects/<Project ID>/agent/fulfillment`
+   * - `projects/<Project ID>/locations/<Location ID>/agent/fulfillment`
+   * 

+   *
+   * 
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
+   *
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString getNameBytes();
+}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetVersionRequest.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetVersionRequest.java
new file mode 100644
index 000000000..e18656ad9
--- /dev/null
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetVersionRequest.java
@@ -0,0 +1,679 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/v2beta1/version.proto
+
+package com.google.cloud.dialogflow.v2beta1;
+
+/**
+ *
+ *
+ * 
+ * The request message for [Versions.GetVersion][google.cloud.dialogflow.v2beta1.Versions.GetVersion].
+ * 

+ *
+ * Protobuf type {@code google.cloud.dialogflow.v2beta1.GetVersionRequest}
+ */
+public final class GetVersionRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.v2beta1.GetVersionRequest)
+    GetVersionRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use GetVersionRequest.newBuilder() to construct.
+  private GetVersionRequest(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+    super(builder);
+  }
+
+  private GetVersionRequest() {
+    name_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new GetVersionRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private GetVersionRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              name_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.v2beta1.VersionProto
+        .internal_static_google_cloud_dialogflow_v2beta1_GetVersionRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.v2beta1.VersionProto
+        .internal_static_google_cloud_dialogflow_v2beta1_GetVersionRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.v2beta1.GetVersionRequest.class,
+            com.google.cloud.dialogflow.v2beta1.GetVersionRequest.Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   *
+   *
+   * 
+   * Required. The name of the version.
+   * Supported formats:
+   * - `projects/<Project ID>/agent/versions/<Version ID>`
+   * - `projects/<Project ID>/locations/<Location ID>/agent/versions/<Version
+   *   ID>`
+   * 

+   *
+   * 
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
+   *
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * 
+   * Required. The name of the version.
+   * Supported formats:
+   * - `projects/<Project ID>/agent/versions/<Version ID>`
+   * - `projects/<Project ID>/locations/<Location ID>/agent/versions/<Version
+   *   ID>`
+   * 

+   *
+   * 
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
+   *
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.v2beta1.GetVersionRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.v2beta1.GetVersionRequest other =
+        (com.google.cloud.dialogflow.v2beta1.GetVersionRequest) obj;
+
+    if (!getName().equals(other.getName())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetVersionRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetVersionRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetVersionRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetVersionRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetVersionRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetVersionRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetVersionRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetVersionRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetVersionRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetVersionRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetVersionRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetVersionRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.v2beta1.GetVersionRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * 
+   * The request message for [Versions.GetVersion][google.cloud.dialogflow.v2beta1.Versions.GetVersion].
+   * 

+   *
+   * Protobuf type {@code google.cloud.dialogflow.v2beta1.GetVersionRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.v2beta1.GetVersionRequest)
+      com.google.cloud.dialogflow.v2beta1.GetVersionRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.v2beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_v2beta1_GetVersionRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.v2beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_v2beta1_GetVersionRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.v2beta1.GetVersionRequest.class,
+              com.google.cloud.dialogflow.v2beta1.GetVersionRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.v2beta1.GetVersionRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.v2beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_v2beta1_GetVersionRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.GetVersionRequest getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.v2beta1.GetVersionRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.GetVersionRequest build() {
+      com.google.cloud.dialogflow.v2beta1.GetVersionRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.GetVersionRequest buildPartial() {
+      com.google.cloud.dialogflow.v2beta1.GetVersionRequest result =
+          new com.google.cloud.dialogflow.v2beta1.GetVersionRequest(this);
+      result.name_ = name_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.v2beta1.GetVersionRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.v2beta1.GetVersionRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.v2beta1.GetVersionRequest other) {
+      if (other == com.google.cloud.dialogflow.v2beta1.GetVersionRequest.getDefaultInstance())
+        return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.v2beta1.GetVersionRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.v2beta1.GetVersionRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     *
+     *
+     * 
+     * Required. The name of the version.
+     * Supported formats:
+     * - `projects/<Project ID>/agent/versions/<Version ID>`
+     * - `projects/<Project ID>/locations/<Location ID>/agent/versions/<Version
+     *   ID>`
+     * 

+     *
+     * 
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The name of the version.
+     * Supported formats:
+     * - `projects/<Project ID>/agent/versions/<Version ID>`
+     * - `projects/<Project ID>/locations/<Location ID>/agent/versions/<Version
+     *   ID>`
+     * 

+     *
+     * 
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The name of the version.
+     * Supported formats:
+     * - `projects/<Project ID>/agent/versions/<Version ID>`
+     * - `projects/<Project ID>/locations/<Location ID>/agent/versions/<Version
+     *   ID>`
+     * 

+     *
+     * 
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The name of the version.
+     * Supported formats:
+     * - `projects/<Project ID>/agent/versions/<Version ID>`
+     * - `projects/<Project ID>/locations/<Location ID>/agent/versions/<Version
+     *   ID>`
+     * 

+     *
+     * 
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The name of the version.
+     * Supported formats:
+     * - `projects/<Project ID>/agent/versions/<Version ID>`
+     * - `projects/<Project ID>/locations/<Location ID>/agent/versions/<Version
+     *   ID>`
+     * 

+     *
+     * 
+     * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.v2beta1.GetVersionRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.v2beta1.GetVersionRequest)
+  private static final com.google.cloud.dialogflow.v2beta1.GetVersionRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.v2beta1.GetVersionRequest();
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.GetVersionRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser PARSER =
+      new com.google.protobuf.AbstractParser() {
+        @java.lang.Override
+        public GetVersionRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new GetVersionRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.v2beta1.GetVersionRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetVersionRequestOrBuilder.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetVersionRequestOrBuilder.java
new file mode 100644
index 000000000..146fd95e0
--- /dev/null
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetVersionRequestOrBuilder.java
@@ -0,0 +1,62 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/v2beta1/version.proto
+
+package com.google.cloud.dialogflow.v2beta1;
+
+public interface GetVersionRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.v2beta1.GetVersionRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * 
+   * Required. The name of the version.
+   * Supported formats:
+   * - `projects/<Project ID>/agent/versions/<Version ID>`
+   * - `projects/<Project ID>/locations/<Location ID>/agent/versions/<Version
+   *   ID>`
+   * 

+   *
+   * 
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
+   *
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   *
+   *
+   * 
+   * Required. The name of the version.
+   * Supported formats:
+   * - `projects/<Project ID>/agent/versions/<Version ID>`
+   * - `projects/<Project ID>/locations/<Location ID>/agent/versions/<Version
+   *   ID>`
+   * 

+   *
+   * 
+   * string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
+   *
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString getNameBytes();
+}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/HumanAgentAssistantConfig.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/HumanAgentAssistantConfig.java
index b3d703f1e..d728484a8 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/HumanAgentAssistantConfig.java
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/HumanAgentAssistantConfig.java
@@ -10438,11 +10438,11 @@ public interface ConversationModelConfigOrBuilder
      *
      *
      * 
-     * Required. Conversation model resource name. Format: `projects/<Project
+     * Conversation model resource name. Format: `projects/<Project
      * ID>/conversationModels/<Model ID>`.
      * 

      *
-     * string model = 1 [(.google.api.field_behavior) = REQUIRED];
+     * string model = 1 [(.google.api.resource_reference) = { ... }
      *
      * @return The model.
      */
@@ -10451,11 +10451,11 @@ public interface ConversationModelConfigOrBuilder
      *
      *
      * 
-     * Required. Conversation model resource name. Format: `projects/<Project
+     * Conversation model resource name. Format: `projects/<Project
      * ID>/conversationModels/<Model ID>`.
      * 

      *
-     * string model = 1 [(.google.api.field_behavior) = REQUIRED];
+     * string model = 1 [(.google.api.resource_reference) = { ... }
      *
      * @return The bytes for model.
      */
@@ -10564,11 +10564,11 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
      *
      *
      * 
-     * Required. Conversation model resource name. Format: `projects/<Project
+     * Conversation model resource name. Format: `projects/<Project
      * ID>/conversationModels/<Model ID>`.
      * 

      *
-     * string model = 1 [(.google.api.field_behavior) = REQUIRED];
+     * string model = 1 [(.google.api.resource_reference) = { ... }
      *
      * @return The model.
      */
@@ -10588,11 +10588,11 @@ public java.lang.String getModel() {
      *
      *
      * 
-     * Required. Conversation model resource name. Format: `projects/<Project
+     * Conversation model resource name. Format: `projects/<Project
      * ID>/conversationModels/<Model ID>`.
      * 

      *
-     * string model = 1 [(.google.api.field_behavior) = REQUIRED];
+     * string model = 1 [(.google.api.resource_reference) = { ... }
      *
      * @return The bytes for model.
      */
@@ -10983,11 +10983,11 @@ public Builder mergeFrom(
        *
        *
        * 
-       * Required. Conversation model resource name. Format: `projects/<Project
+       * Conversation model resource name. Format: `projects/<Project
        * ID>/conversationModels/<Model ID>`.
        * 

        *
-       * string model = 1 [(.google.api.field_behavior) = REQUIRED];
+       * string model = 1 [(.google.api.resource_reference) = { ... }
        *
        * @return The model.
        */
@@ -11006,11 +11006,11 @@ public java.lang.String getModel() {
        *
        *
        * 
-       * Required. Conversation model resource name. Format: `projects/<Project
+       * Conversation model resource name. Format: `projects/<Project
        * ID>/conversationModels/<Model ID>`.
        * 

        *
-       * string model = 1 [(.google.api.field_behavior) = REQUIRED];
+       * string model = 1 [(.google.api.resource_reference) = { ... }
        *
        * @return The bytes for model.
        */
@@ -11029,11 +11029,11 @@ public com.google.protobuf.ByteString getModelBytes() {
        *
        *
        * 
-       * Required. Conversation model resource name. Format: `projects/<Project
+       * Conversation model resource name. Format: `projects/<Project
        * ID>/conversationModels/<Model ID>`.
        * 

        *
-       * string model = 1 [(.google.api.field_behavior) = REQUIRED];
+       * string model = 1 [(.google.api.resource_reference) = { ... }
        *
        * @param value The model to set.
        * @return This builder for chaining.
@@ -11051,11 +11051,11 @@ public Builder setModel(java.lang.String value) {
        *
        *
        * 
-       * Required. Conversation model resource name. Format: `projects/<Project
+       * Conversation model resource name. Format: `projects/<Project
        * ID>/conversationModels/<Model ID>`.
        * 

        *
-       * string model = 1 [(.google.api.field_behavior) = REQUIRED];
+       * string model = 1 [(.google.api.resource_reference) = { ... }
        *
        * @return This builder for chaining.
        */
@@ -11069,11 +11069,11 @@ public Builder clearModel() {
        *
        *
        * 
-       * Required. Conversation model resource name. Format: `projects/<Project
+       * Conversation model resource name. Format: `projects/<Project
        * ID>/conversationModels/<Model ID>`.
        * 

        *
-       * string model = 1 [(.google.api.field_behavior) = REQUIRED];
+       * string model = 1 [(.google.api.resource_reference) = { ... }
        *
        * @param value The bytes for model to set.
        * @return This builder for chaining.
@@ -11160,6 +11160,8 @@ public interface MessageAnalysisConfigOrBuilder
      * Enable entity extraction in conversation messages on [agent assist
      * stage](https://cloud.google.com/dialogflow/priv/docs/contact-center/basics#stages).
      * If unspecified, defaults to false.
+     * Currently, this feature is not general available, please contact Google
+     * to get access.
      * 

      *
      * bool enable_entity_extraction = 2;
@@ -11300,6 +11302,8 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
      * Enable entity extraction in conversation messages on [agent assist
      * stage](https://cloud.google.com/dialogflow/priv/docs/contact-center/basics#stages).
      * If unspecified, defaults to false.
+     * Currently, this feature is not general available, please contact Google
+     * to get access.
      * 

      *
      * bool enable_entity_extraction = 2;
@@ -11728,6 +11732,8 @@ public Builder mergeFrom(
        * Enable entity extraction in conversation messages on [agent assist
        * stage](https://cloud.google.com/dialogflow/priv/docs/contact-center/basics#stages).
        * If unspecified, defaults to false.
+       * Currently, this feature is not general available, please contact Google
+       * to get access.
        * 

        *
        * bool enable_entity_extraction = 2;
@@ -11745,6 +11751,8 @@ public boolean getEnableEntityExtraction() {
        * Enable entity extraction in conversation messages on [agent assist
        * stage](https://cloud.google.com/dialogflow/priv/docs/contact-center/basics#stages).
        * If unspecified, defaults to false.
+       * Currently, this feature is not general available, please contact Google
+       * to get access.
        * 

        *
        * bool enable_entity_extraction = 2;
@@ -11765,6 +11773,8 @@ public Builder setEnableEntityExtraction(boolean value) {
        * Enable entity extraction in conversation messages on [agent assist
        * stage](https://cloud.google.com/dialogflow/priv/docs/contact-center/basics#stages).
        * If unspecified, defaults to false.
+       * Currently, this feature is not general available, please contact Google
+       * to get access.
        * 

        *
        * bool enable_entity_extraction = 2;
@@ -12042,6 +12052,8 @@ public boolean hasHumanAgentSuggestionConfig() {
    *
    * 
    * Configuration for agent assistance of end user participant.
+   * Currently, this feature is not general available, please contact Google
+   * to get access.
    * 

    *
    * 
@@ -12059,6 +12071,8 @@ public boolean hasEndUserSuggestionConfig() {
    *
    * 
    * Configuration for agent assistance of end user participant.
+   * Currently, this feature is not general available, please contact Google
+   * to get access.
    * 

    *
    * 
@@ -12080,6 +12094,8 @@ public boolean hasEndUserSuggestionConfig() {
    *
    * 
    * Configuration for agent assistance of end user participant.
+   * Currently, this feature is not general available, please contact Google
+   * to get access.
    * 

    *
    * 
@@ -12992,6 +13008,8 @@ public Builder clearHumanAgentSuggestionConfig() {
      *
      * 
      * Configuration for agent assistance of end user participant.
+     * Currently, this feature is not general available, please contact Google
+     * to get access.
      * 

      *
      * 
@@ -13008,6 +13026,8 @@ public boolean hasEndUserSuggestionConfig() {
      *
      * 
      * Configuration for agent assistance of end user participant.
+     * Currently, this feature is not general available, please contact Google
+     * to get access.
      * 

      *
      * 
@@ -13032,6 +13052,8 @@ public boolean hasEndUserSuggestionConfig() {
      *
      * 
      * Configuration for agent assistance of end user participant.
+     * Currently, this feature is not general available, please contact Google
+     * to get access.
      * 

      *
      * 
@@ -13057,6 +13079,8 @@ public Builder setEndUserSuggestionConfig(
      *
      * 
      * Configuration for agent assistance of end user participant.
+     * Currently, this feature is not general available, please contact Google
+     * to get access.
      * 

      *
      * 
@@ -13080,6 +13104,8 @@ public Builder setEndUserSuggestionConfig(
      *
      * 
      * Configuration for agent assistance of end user participant.
+     * Currently, this feature is not general available, please contact Google
+     * to get access.
      * 

      *
      * 
@@ -13110,6 +13136,8 @@ public Builder mergeEndUserSuggestionConfig(
      *
      * 
      * Configuration for agent assistance of end user participant.
+     * Currently, this feature is not general available, please contact Google
+     * to get access.
      * 

      *
      * 
@@ -13132,6 +13160,8 @@ public Builder clearEndUserSuggestionConfig() {
      *
      * 
      * Configuration for agent assistance of end user participant.
+     * Currently, this feature is not general available, please contact Google
+     * to get access.
      * 

      *
      * 
@@ -13149,6 +13179,8 @@ public Builder clearEndUserSuggestionConfig() {
      *
      * 
      * Configuration for agent assistance of end user participant.
+     * Currently, this feature is not general available, please contact Google
+     * to get access.
      * 

      *
      * 
@@ -13171,6 +13203,8 @@ public Builder clearEndUserSuggestionConfig() {
      *
      * 
      * Configuration for agent assistance of end user participant.
+     * Currently, this feature is not general available, please contact Google
+     * to get access.
      * 

      *
      * 
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/HumanAgentAssistantConfigOrBuilder.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/HumanAgentAssistantConfigOrBuilder.java
index 1aa6bfaa4..2869412ee 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/HumanAgentAssistantConfigOrBuilder.java
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/HumanAgentAssistantConfigOrBuilder.java
@@ -106,6 +106,8 @@ public interface HumanAgentAssistantConfigOrBuilder
    *
    * 
    * Configuration for agent assistance of end user participant.
+   * Currently, this feature is not general available, please contact Google
+   * to get access.
    * 

    *
    * 
@@ -120,6 +122,8 @@ public interface HumanAgentAssistantConfigOrBuilder
    *
    * 
    * Configuration for agent assistance of end user participant.
+   * Currently, this feature is not general available, please contact Google
+   * to get access.
    * 

    *
    * 
@@ -135,6 +139,8 @@ public interface HumanAgentAssistantConfigOrBuilder
    *
    * 
    * Configuration for agent assistance of end user participant.
+   * Currently, this feature is not general available, please contact Google
+   * to get access.
    * 

    *
    * 
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/HumanAgentHandoffConfig.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/HumanAgentHandoffConfig.java
index 9fc0cf329..f820c5352 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/HumanAgentHandoffConfig.java
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/HumanAgentHandoffConfig.java
@@ -24,6 +24,8 @@
  * 
  * Defines the hand off to a live agent, typically on which external agent
  * service provider to connect to a conversation.
+ * Currently, this feature is not general available, please contact Google
+ * to get access.
  * 

  *
  * Protobuf type {@code google.cloud.dialogflow.v2beta1.HumanAgentHandoffConfig}
@@ -2573,6 +2575,8 @@ protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.Build
    * 
    * Defines the hand off to a live agent, typically on which external agent
    * service provider to connect to a conversation.
+   * Currently, this feature is not general available, please contact Google
+   * to get access.
    * 

    *
    * Protobuf type {@code google.cloud.dialogflow.v2beta1.HumanAgentHandoffConfig}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListAnswerRecordsRequest.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListAnswerRecordsRequest.java
index b2afea05d..493191970 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListAnswerRecordsRequest.java
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListAnswerRecordsRequest.java
@@ -22,8 +22,7 @@
  *
  *
  * 
- * Request message for
- * [AnswerRecords.ListAnswerRecords][google.cloud.dialogflow.v2beta1.AnswerRecords.ListAnswerRecords].
+ * Request message for [AnswerRecords.ListAnswerRecords][google.cloud.dialogflow.v2beta1.AnswerRecords.ListAnswerRecords].
  * 

  *
  * Protobuf type {@code google.cloud.dialogflow.v2beta1.ListAnswerRecordsRequest}
@@ -435,8 +434,7 @@ protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.Build
    *
    *
    * 
-   * Request message for
-   * [AnswerRecords.ListAnswerRecords][google.cloud.dialogflow.v2beta1.AnswerRecords.ListAnswerRecords].
+   * Request message for [AnswerRecords.ListAnswerRecords][google.cloud.dialogflow.v2beta1.AnswerRecords.ListAnswerRecords].
    * 

    *
    * Protobuf type {@code google.cloud.dialogflow.v2beta1.ListAnswerRecordsRequest}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListAnswerRecordsResponse.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListAnswerRecordsResponse.java
index 282212b91..3009058f5 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListAnswerRecordsResponse.java
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListAnswerRecordsResponse.java
@@ -22,8 +22,7 @@
  *
  *
  * 
- * Response message for
- * [AnswerRecords.ListAnswerRecords][google.cloud.dialogflow.v2beta1.AnswerRecords.ListAnswerRecords].
+ * Response message for [AnswerRecords.ListAnswerRecords][google.cloud.dialogflow.v2beta1.AnswerRecords.ListAnswerRecords].
  * 

  *
  * Protobuf type {@code google.cloud.dialogflow.v2beta1.ListAnswerRecordsResponse}
@@ -434,8 +433,7 @@ protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.Build
    *
    *
    * 
-   * Response message for
-   * [AnswerRecords.ListAnswerRecords][google.cloud.dialogflow.v2beta1.AnswerRecords.ListAnswerRecords].
+   * Response message for [AnswerRecords.ListAnswerRecords][google.cloud.dialogflow.v2beta1.AnswerRecords.ListAnswerRecords].
    * 

    *
    * Protobuf type {@code google.cloud.dialogflow.v2beta1.ListAnswerRecordsResponse}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListConversationsRequest.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListConversationsRequest.java
index a46e8b65b..33aa00607 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListConversationsRequest.java
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListConversationsRequest.java
@@ -22,8 +22,7 @@
  *
  *
  * 
- * The request message for
- * [Conversations.ListConversations][google.cloud.dialogflow.v2beta1.Conversations.ListConversations].
+ * The request message for [Conversations.ListConversations][google.cloud.dialogflow.v2beta1.Conversations.ListConversations].
  * 

  *
  * Protobuf type {@code google.cloud.dialogflow.v2beta1.ListConversationsRequest}
@@ -524,8 +523,7 @@ protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.Build
    *
    *
    * 
-   * The request message for
-   * [Conversations.ListConversations][google.cloud.dialogflow.v2beta1.Conversations.ListConversations].
+   * The request message for [Conversations.ListConversations][google.cloud.dialogflow.v2beta1.Conversations.ListConversations].
    * 

    *
    * Protobuf type {@code google.cloud.dialogflow.v2beta1.ListConversationsRequest}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListConversationsResponse.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListConversationsResponse.java
index 02c741f4a..e99de7e7b 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListConversationsResponse.java
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListConversationsResponse.java
@@ -22,8 +22,7 @@
  *
  *
  * 
- * The response message for
- * [Conversations.ListConversations][google.cloud.dialogflow.v2beta1.Conversations.ListConversations].
+ * The response message for [Conversations.ListConversations][google.cloud.dialogflow.v2beta1.Conversations.ListConversations].
  * 

  *
  * Protobuf type {@code google.cloud.dialogflow.v2beta1.ListConversationsResponse}
@@ -431,8 +430,7 @@ protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.Build
    *
    *
    * 
-   * The response message for
-   * [Conversations.ListConversations][google.cloud.dialogflow.v2beta1.Conversations.ListConversations].
+   * The response message for [Conversations.ListConversations][google.cloud.dialogflow.v2beta1.Conversations.ListConversations].
    * 

    *
    * Protobuf type {@code google.cloud.dialogflow.v2beta1.ListConversationsResponse}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListMessagesRequest.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListMessagesRequest.java
index 0ee4ebd92..c0b501b76 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListMessagesRequest.java
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListMessagesRequest.java
@@ -22,8 +22,7 @@
  *
  *
  * 
- * The request message for
- * [Conversations.ListMessages][google.cloud.dialogflow.v2beta1.Conversations.ListMessages].
+ * The request message for [Conversations.ListMessages][google.cloud.dialogflow.v2beta1.Conversations.ListMessages].
  * 

  *
  * Protobuf type {@code google.cloud.dialogflow.v2beta1.ListMessagesRequest}
@@ -200,7 +199,7 @@ public com.google.protobuf.ByteString getParentBytes() {
    * and `create_time_epoch_microseconds` are supported. `create_time` only
    * support milliseconds accuracy. E.g.,
    * `create_time_epoch_microseconds > 1551790877964485` or
-   * `create_time > 2017-01-15T01:30:15.01Z`.
+   * `create_time > "2017-01-15T01:30:15.01Z"`.
    * For more information about filtering, see
    * [API Filtering](https://aip.dev/160).
    * 

@@ -229,7 +228,7 @@ public java.lang.String getFilter() {
    * and `create_time_epoch_microseconds` are supported. `create_time` only
    * support milliseconds accuracy. E.g.,
    * `create_time_epoch_microseconds > 1551790877964485` or
-   * `create_time > 2017-01-15T01:30:15.01Z`.
+   * `create_time > "2017-01-15T01:30:15.01Z"`.
    * For more information about filtering, see
    * [API Filtering](https://aip.dev/160).
    * 

@@ -510,8 +509,7 @@ protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.Build
    *
    *
    * 
-   * The request message for
-   * [Conversations.ListMessages][google.cloud.dialogflow.v2beta1.Conversations.ListMessages].
+   * The request message for [Conversations.ListMessages][google.cloud.dialogflow.v2beta1.Conversations.ListMessages].
    * 

    *
    * Protobuf type {@code google.cloud.dialogflow.v2beta1.ListMessagesRequest}
@@ -821,7 +819,7 @@ public Builder setParentBytes(com.google.protobuf.ByteString value) {
      * and `create_time_epoch_microseconds` are supported. `create_time` only
      * support milliseconds accuracy. E.g.,
      * `create_time_epoch_microseconds > 1551790877964485` or
-     * `create_time > 2017-01-15T01:30:15.01Z`.
+     * `create_time > "2017-01-15T01:30:15.01Z"`.
      * For more information about filtering, see
      * [API Filtering](https://aip.dev/160).
      * 

@@ -849,7 +847,7 @@ public java.lang.String getFilter() {
      * and `create_time_epoch_microseconds` are supported. `create_time` only
      * support milliseconds accuracy. E.g.,
      * `create_time_epoch_microseconds > 1551790877964485` or
-     * `create_time > 2017-01-15T01:30:15.01Z`.
+     * `create_time > "2017-01-15T01:30:15.01Z"`.
      * For more information about filtering, see
      * [API Filtering](https://aip.dev/160).
      * 

@@ -877,7 +875,7 @@ public com.google.protobuf.ByteString getFilterBytes() {
      * and `create_time_epoch_microseconds` are supported. `create_time` only
      * support milliseconds accuracy. E.g.,
      * `create_time_epoch_microseconds > 1551790877964485` or
-     * `create_time > 2017-01-15T01:30:15.01Z`.
+     * `create_time > "2017-01-15T01:30:15.01Z"`.
      * For more information about filtering, see
      * [API Filtering](https://aip.dev/160).
      * 
@@ -904,7 +902,7 @@ public Builder setFilter(java.lang.String value) {
      * and `create_time_epoch_microseconds` are supported. `create_time` only
      * support milliseconds accuracy. E.g.,
      * `create_time_epoch_microseconds > 1551790877964485` or
-     * `create_time > 2017-01-15T01:30:15.01Z`.
+     * `create_time > "2017-01-15T01:30:15.01Z"`.
      * For more information about filtering, see
      * [API Filtering](https://aip.dev/160).
      * 
@@ -927,7 +925,7 @@ public Builder clearFilter() {
      * and `create_time_epoch_microseconds` are supported. `create_time` only
      * support milliseconds accuracy. E.g.,
      * `create_time_epoch_microseconds > 1551790877964485` or
-     * `create_time > 2017-01-15T01:30:15.01Z`.
+     * `create_time > "2017-01-15T01:30:15.01Z"`.
      * For more information about filtering, see
      * [API Filtering](https://aip.dev/160).
      * 
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListMessagesRequestOrBuilder.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListMessagesRequestOrBuilder.java
index 18cb599ff..5f4fb5dc2 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListMessagesRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListMessagesRequestOrBuilder.java
@@ -64,7 +64,7 @@ public interface ListMessagesRequestOrBuilder
    * and `create_time_epoch_microseconds` are supported. `create_time` only
    * support milliseconds accuracy. E.g.,
    * `create_time_epoch_microseconds > 1551790877964485` or
-   * `create_time > 2017-01-15T01:30:15.01Z`.
+   * `create_time > "2017-01-15T01:30:15.01Z"`.
    * For more information about filtering, see
    * [API Filtering](https://aip.dev/160).
    * 
@@ -82,7 +82,7 @@ public interface ListMessagesRequestOrBuilder
    * and `create_time_epoch_microseconds` are supported. `create_time` only
    * support milliseconds accuracy. E.g.,
    * `create_time_epoch_microseconds > 1551790877964485` or
-   * `create_time > 2017-01-15T01:30:15.01Z`.
+   * `create_time > "2017-01-15T01:30:15.01Z"`.
    * For more information about filtering, see
    * [API Filtering](https://aip.dev/160).
    * 
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListMessagesResponse.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListMessagesResponse.java
index 382a0d4bb..bc8d6f80d 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListMessagesResponse.java
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListMessagesResponse.java
@@ -22,8 +22,7 @@
  *
  *
  * 
- * The response message for
- * [Conversations.ListMessages][google.cloud.dialogflow.v2beta1.Conversations.ListMessages].
+ * The response message for [Conversations.ListMessages][google.cloud.dialogflow.v2beta1.Conversations.ListMessages].
  * 

  *
  * Protobuf type {@code google.cloud.dialogflow.v2beta1.ListMessagesResponse}
@@ -433,8 +432,7 @@ protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.Build
    *
    *
    * 
-   * The response message for
-   * [Conversations.ListMessages][google.cloud.dialogflow.v2beta1.Conversations.ListMessages].
+   * The response message for [Conversations.ListMessages][google.cloud.dialogflow.v2beta1.Conversations.ListMessages].
    * 

    *
    * Protobuf type {@code google.cloud.dialogflow.v2beta1.ListMessagesResponse}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListSuggestionsRequest.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListSuggestionsRequest.java
index 199451610..0bc57e30d 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListSuggestionsRequest.java
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListSuggestionsRequest.java
@@ -264,7 +264,7 @@ public com.google.protobuf.ByteString getPageTokenBytes() {
    * `create_time` and `create_time_epoch_microseconds` are supported.
    * `create_time` only support milliseconds accuracy. E.g.,
    * `create_time_epoch_microseconds > 1551790877964485` or
-   * `create_time > 2017-01-15T01:30:15.01Z`
+   * `create_time > "2017-01-15T01:30:15.01Z"`
    * For more information about filtering, see
    * [API Filtering](https://aip.dev/160).
    * 
@@ -293,7 +293,7 @@ public java.lang.String getFilter() {
    * `create_time` and `create_time_epoch_microseconds` are supported.
    * `create_time` only support milliseconds accuracy. E.g.,
    * `create_time_epoch_microseconds > 1551790877964485` or
-   * `create_time > 2017-01-15T01:30:15.01Z`
+   * `create_time > "2017-01-15T01:30:15.01Z"`
    * For more information about filtering, see
    * [API Filtering](https://aip.dev/160).
    * 
@@ -967,7 +967,7 @@ public Builder setPageTokenBytes(com.google.protobuf.ByteString value) {
      * `create_time` and `create_time_epoch_microseconds` are supported.
      * `create_time` only support milliseconds accuracy. E.g.,
      * `create_time_epoch_microseconds > 1551790877964485` or
-     * `create_time > 2017-01-15T01:30:15.01Z`
+     * `create_time > "2017-01-15T01:30:15.01Z"`
      * For more information about filtering, see
      * [API Filtering](https://aip.dev/160).
      * 
@@ -995,7 +995,7 @@ public java.lang.String getFilter() {
      * `create_time` and `create_time_epoch_microseconds` are supported.
      * `create_time` only support milliseconds accuracy. E.g.,
      * `create_time_epoch_microseconds > 1551790877964485` or
-     * `create_time > 2017-01-15T01:30:15.01Z`
+     * `create_time > "2017-01-15T01:30:15.01Z"`
      * For more information about filtering, see
      * [API Filtering](https://aip.dev/160).
      * 
@@ -1023,7 +1023,7 @@ public com.google.protobuf.ByteString getFilterBytes() {
      * `create_time` and `create_time_epoch_microseconds` are supported.
      * `create_time` only support milliseconds accuracy. E.g.,
      * `create_time_epoch_microseconds > 1551790877964485` or
-     * `create_time > 2017-01-15T01:30:15.01Z`
+     * `create_time > "2017-01-15T01:30:15.01Z"`
      * For more information about filtering, see
      * [API Filtering](https://aip.dev/160).
      * 
@@ -1050,7 +1050,7 @@ public Builder setFilter(java.lang.String value) {
      * `create_time` and `create_time_epoch_microseconds` are supported.
      * `create_time` only support milliseconds accuracy. E.g.,
      * `create_time_epoch_microseconds > 1551790877964485` or
-     * `create_time > 2017-01-15T01:30:15.01Z`
+     * `create_time > "2017-01-15T01:30:15.01Z"`
      * For more information about filtering, see
      * [API Filtering](https://aip.dev/160).
      * 
@@ -1073,7 +1073,7 @@ public Builder clearFilter() {
      * `create_time` and `create_time_epoch_microseconds` are supported.
      * `create_time` only support milliseconds accuracy. E.g.,
      * `create_time_epoch_microseconds > 1551790877964485` or
-     * `create_time > 2017-01-15T01:30:15.01Z`
+     * `create_time > "2017-01-15T01:30:15.01Z"`
      * For more information about filtering, see
      * [API Filtering](https://aip.dev/160).
      * 
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListSuggestionsRequestOrBuilder.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListSuggestionsRequestOrBuilder.java
index da7579764..ebf738fc1 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListSuggestionsRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListSuggestionsRequestOrBuilder.java
@@ -100,7 +100,7 @@ public interface ListSuggestionsRequestOrBuilder
    * `create_time` and `create_time_epoch_microseconds` are supported.
    * `create_time` only support milliseconds accuracy. E.g.,
    * `create_time_epoch_microseconds > 1551790877964485` or
-   * `create_time > 2017-01-15T01:30:15.01Z`
+   * `create_time > "2017-01-15T01:30:15.01Z"`
    * For more information about filtering, see
    * [API Filtering](https://aip.dev/160).
    * 
@@ -118,7 +118,7 @@ public interface ListSuggestionsRequestOrBuilder
    * `create_time` and `create_time_epoch_microseconds` are supported.
    * `create_time` only support milliseconds accuracy. E.g.,
    * `create_time_epoch_microseconds > 1551790877964485` or
-   * `create_time > 2017-01-15T01:30:15.01Z`
+   * `create_time > "2017-01-15T01:30:15.01Z"`
    * For more information about filtering, see
    * [API Filtering](https://aip.dev/160).
    * 
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListVersionsRequest.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListVersionsRequest.java
new file mode 100644
index 000000000..bc6fcd10d
--- /dev/null
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListVersionsRequest.java
@@ -0,0 +1,945 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/v2beta1/version.proto
+
+package com.google.cloud.dialogflow.v2beta1;
+
+/**
+ *
+ *
+ * 
+ * The request message for [Versions.ListVersions][google.cloud.dialogflow.v2beta1.Versions.ListVersions].
+ * 

+ *
+ * Protobuf type {@code google.cloud.dialogflow.v2beta1.ListVersionsRequest}
+ */
+public final class ListVersionsRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.v2beta1.ListVersionsRequest)
+    ListVersionsRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use ListVersionsRequest.newBuilder() to construct.
+  private ListVersionsRequest(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+    super(builder);
+  }
+
+  private ListVersionsRequest() {
+    parent_ = "";
+    pageToken_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new ListVersionsRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private ListVersionsRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              parent_ = s;
+              break;
+            }
+          case 16:
+            {
+              pageSize_ = input.readInt32();
+              break;
+            }
+          case 26:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              pageToken_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.v2beta1.VersionProto
+        .internal_static_google_cloud_dialogflow_v2beta1_ListVersionsRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.v2beta1.VersionProto
+        .internal_static_google_cloud_dialogflow_v2beta1_ListVersionsRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.v2beta1.ListVersionsRequest.class,
+            com.google.cloud.dialogflow.v2beta1.ListVersionsRequest.Builder.class);
+  }
+
+  public static final int PARENT_FIELD_NUMBER = 1;
+  private volatile java.lang.Object parent_;
+  /**
+   *
+   *
+   * 
+   * Required. The agent to list all versions from.
+   * Supported formats:
+   * - `projects/<Project ID>/agent`
+   * - `projects/<Project ID>/locations/<Location ID>/agent`
+   * 

+   *
+   * 
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
+   *
+   * @return The parent.
+   */
+  @java.lang.Override
+  public java.lang.String getParent() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      parent_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * 
+   * Required. The agent to list all versions from.
+   * Supported formats:
+   * - `projects/<Project ID>/agent`
+   * - `projects/<Project ID>/locations/<Location ID>/agent`
+   * 

+   *
+   * 
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
+   *
+   * @return The bytes for parent.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getParentBytes() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      parent_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int PAGE_SIZE_FIELD_NUMBER = 2;
+  private int pageSize_;
+  /**
+   *
+   *
+   * 
+   * Optional. The maximum number of items to return in a single page. By default 100 and
+   * at most 1000.
+   * 

+   *
+   * int32 page_size = 2 [(.google.api.field_behavior) = OPTIONAL];
+   *
+   * @return The pageSize.
+   */
+  @java.lang.Override
+  public int getPageSize() {
+    return pageSize_;
+  }
+
+  public static final int PAGE_TOKEN_FIELD_NUMBER = 3;
+  private volatile java.lang.Object pageToken_;
+  /**
+   *
+   *
+   * 
+   * Optional. The next_page_token value returned from a previous list request.
+   * 

+   *
+   * string page_token = 3 [(.google.api.field_behavior) = OPTIONAL];
+   *
+   * @return The pageToken.
+   */
+  @java.lang.Override
+  public java.lang.String getPageToken() {
+    java.lang.Object ref = pageToken_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      pageToken_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * 
+   * Optional. The next_page_token value returned from a previous list request.
+   * 

+   *
+   * string page_token = 3 [(.google.api.field_behavior) = OPTIONAL];
+   *
+   * @return The bytes for pageToken.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getPageTokenBytes() {
+    java.lang.Object ref = pageToken_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      pageToken_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getParentBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, parent_);
+    }
+    if (pageSize_ != 0) {
+      output.writeInt32(2, pageSize_);
+    }
+    if (!getPageTokenBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 3, pageToken_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getParentBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, parent_);
+    }
+    if (pageSize_ != 0) {
+      size += com.google.protobuf.CodedOutputStream.computeInt32Size(2, pageSize_);
+    }
+    if (!getPageTokenBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, pageToken_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.v2beta1.ListVersionsRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.v2beta1.ListVersionsRequest other =
+        (com.google.cloud.dialogflow.v2beta1.ListVersionsRequest) obj;
+
+    if (!getParent().equals(other.getParent())) return false;
+    if (getPageSize() != other.getPageSize()) return false;
+    if (!getPageToken().equals(other.getPageToken())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + PARENT_FIELD_NUMBER;
+    hash = (53 * hash) + getParent().hashCode();
+    hash = (37 * hash) + PAGE_SIZE_FIELD_NUMBER;
+    hash = (53 * hash) + getPageSize();
+    hash = (37 * hash) + PAGE_TOKEN_FIELD_NUMBER;
+    hash = (53 * hash) + getPageToken().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.ListVersionsRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.ListVersionsRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.ListVersionsRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.ListVersionsRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.ListVersionsRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.ListVersionsRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.ListVersionsRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.ListVersionsRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.ListVersionsRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.ListVersionsRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.ListVersionsRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.ListVersionsRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.v2beta1.ListVersionsRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * 
+   * The request message for [Versions.ListVersions][google.cloud.dialogflow.v2beta1.Versions.ListVersions].
+   * 

+   *
+   * Protobuf type {@code google.cloud.dialogflow.v2beta1.ListVersionsRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.v2beta1.ListVersionsRequest)
+      com.google.cloud.dialogflow.v2beta1.ListVersionsRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.v2beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_v2beta1_ListVersionsRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.v2beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_v2beta1_ListVersionsRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.v2beta1.ListVersionsRequest.class,
+              com.google.cloud.dialogflow.v2beta1.ListVersionsRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.v2beta1.ListVersionsRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      parent_ = "";
+
+      pageSize_ = 0;
+
+      pageToken_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.v2beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_v2beta1_ListVersionsRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.ListVersionsRequest getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.v2beta1.ListVersionsRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.ListVersionsRequest build() {
+      com.google.cloud.dialogflow.v2beta1.ListVersionsRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.ListVersionsRequest buildPartial() {
+      com.google.cloud.dialogflow.v2beta1.ListVersionsRequest result =
+          new com.google.cloud.dialogflow.v2beta1.ListVersionsRequest(this);
+      result.parent_ = parent_;
+      result.pageSize_ = pageSize_;
+      result.pageToken_ = pageToken_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.v2beta1.ListVersionsRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.v2beta1.ListVersionsRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.v2beta1.ListVersionsRequest other) {
+      if (other == com.google.cloud.dialogflow.v2beta1.ListVersionsRequest.getDefaultInstance())
+        return this;
+      if (!other.getParent().isEmpty()) {
+        parent_ = other.parent_;
+        onChanged();
+      }
+      if (other.getPageSize() != 0) {
+        setPageSize(other.getPageSize());
+      }
+      if (!other.getPageToken().isEmpty()) {
+        pageToken_ = other.pageToken_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.v2beta1.ListVersionsRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.v2beta1.ListVersionsRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object parent_ = "";
+    /**
+     *
+     *
+     * 
+     * Required. The agent to list all versions from.
+     * Supported formats:
+     * - `projects/<Project ID>/agent`
+     * - `projects/<Project ID>/locations/<Location ID>/agent`
+     * 

+     *
+     * 
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @return The parent.
+     */
+    public java.lang.String getParent() {
+      java.lang.Object ref = parent_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        parent_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The agent to list all versions from.
+     * Supported formats:
+     * - `projects/<Project ID>/agent`
+     * - `projects/<Project ID>/locations/<Location ID>/agent`
+     * 

+     *
+     * 
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @return The bytes for parent.
+     */
+    public com.google.protobuf.ByteString getParentBytes() {
+      java.lang.Object ref = parent_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        parent_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The agent to list all versions from.
+     * Supported formats:
+     * - `projects/<Project ID>/agent`
+     * - `projects/<Project ID>/locations/<Location ID>/agent`
+     * 

+     *
+     * 
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @param value The parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParent(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The agent to list all versions from.
+     * Supported formats:
+     * - `projects/<Project ID>/agent`
+     * - `projects/<Project ID>/locations/<Location ID>/agent`
+     * 

+     *
+     * 
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearParent() {
+
+      parent_ = getDefaultInstance().getParent();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The agent to list all versions from.
+     * Supported formats:
+     * - `projects/<Project ID>/agent`
+     * - `projects/<Project ID>/locations/<Location ID>/agent`
+     * 

+     *
+     * 
+     * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @param value The bytes for parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParentBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+
+    private int pageSize_;
+    /**
+     *
+     *
+     * 
+     * Optional. The maximum number of items to return in a single page. By default 100 and
+     * at most 1000.
+     * 

+     *
+     * int32 page_size = 2 [(.google.api.field_behavior) = OPTIONAL];
+     *
+     * @return The pageSize.
+     */
+    @java.lang.Override
+    public int getPageSize() {
+      return pageSize_;
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. The maximum number of items to return in a single page. By default 100 and
+     * at most 1000.
+     * 

+     *
+     * int32 page_size = 2 [(.google.api.field_behavior) = OPTIONAL];
+     *
+     * @param value The pageSize to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageSize(int value) {
+
+      pageSize_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. The maximum number of items to return in a single page. By default 100 and
+     * at most 1000.
+     * 

+     *
+     * int32 page_size = 2 [(.google.api.field_behavior) = OPTIONAL];
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearPageSize() {
+
+      pageSize_ = 0;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object pageToken_ = "";
+    /**
+     *
+     *
+     * 
+     * Optional. The next_page_token value returned from a previous list request.
+     * 

+     *
+     * string page_token = 3 [(.google.api.field_behavior) = OPTIONAL];
+     *
+     * @return The pageToken.
+     */
+    public java.lang.String getPageToken() {
+      java.lang.Object ref = pageToken_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        pageToken_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. The next_page_token value returned from a previous list request.
+     * 

+     *
+     * string page_token = 3 [(.google.api.field_behavior) = OPTIONAL];
+     *
+     * @return The bytes for pageToken.
+     */
+    public com.google.protobuf.ByteString getPageTokenBytes() {
+      java.lang.Object ref = pageToken_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        pageToken_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. The next_page_token value returned from a previous list request.
+     * 

+     *
+     * string page_token = 3 [(.google.api.field_behavior) = OPTIONAL];
+     *
+     * @param value The pageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageToken(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      pageToken_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. The next_page_token value returned from a previous list request.
+     * 

+     *
+     * string page_token = 3 [(.google.api.field_behavior) = OPTIONAL];
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearPageToken() {
+
+      pageToken_ = getDefaultInstance().getPageToken();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. The next_page_token value returned from a previous list request.
+     * 

+     *
+     * string page_token = 3 [(.google.api.field_behavior) = OPTIONAL];
+     *
+     * @param value The bytes for pageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageTokenBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      pageToken_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.v2beta1.ListVersionsRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.v2beta1.ListVersionsRequest)
+  private static final com.google.cloud.dialogflow.v2beta1.ListVersionsRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.v2beta1.ListVersionsRequest();
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.ListVersionsRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser PARSER =
+      new com.google.protobuf.AbstractParser() {
+        @java.lang.Override
+        public ListVersionsRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new ListVersionsRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.v2beta1.ListVersionsRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListVersionsRequestOrBuilder.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListVersionsRequestOrBuilder.java
new file mode 100644
index 000000000..a7ea2d0a7
--- /dev/null
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListVersionsRequestOrBuilder.java
@@ -0,0 +1,99 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/v2beta1/version.proto
+
+package com.google.cloud.dialogflow.v2beta1;
+
+public interface ListVersionsRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.v2beta1.ListVersionsRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * 
+   * Required. The agent to list all versions from.
+   * Supported formats:
+   * - `projects/<Project ID>/agent`
+   * - `projects/<Project ID>/locations/<Location ID>/agent`
+   * 

+   *
+   * 
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
+   *
+   * @return The parent.
+   */
+  java.lang.String getParent();
+  /**
+   *
+   *
+   * 
+   * Required. The agent to list all versions from.
+   * Supported formats:
+   * - `projects/<Project ID>/agent`
+   * - `projects/<Project ID>/locations/<Location ID>/agent`
+   * 

+   *
+   * 
+   * string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
+   *
+   * @return The bytes for parent.
+   */
+  com.google.protobuf.ByteString getParentBytes();
+
+  /**
+   *
+   *
+   * 
+   * Optional. The maximum number of items to return in a single page. By default 100 and
+   * at most 1000.
+   * 

+   *
+   * int32 page_size = 2 [(.google.api.field_behavior) = OPTIONAL];
+   *
+   * @return The pageSize.
+   */
+  int getPageSize();
+
+  /**
+   *
+   *
+   * 
+   * Optional. The next_page_token value returned from a previous list request.
+   * 

+   *
+   * string page_token = 3 [(.google.api.field_behavior) = OPTIONAL];
+   *
+   * @return The pageToken.
+   */
+  java.lang.String getPageToken();
+  /**
+   *
+   *
+   * 
+   * Optional. The next_page_token value returned from a previous list request.
+   * 

+   *
+   * string page_token = 3 [(.google.api.field_behavior) = OPTIONAL];
+   *
+   * @return The bytes for pageToken.
+   */
+  com.google.protobuf.ByteString getPageTokenBytes();
+}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListVersionsResponse.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListVersionsResponse.java
new file mode 100644
index 000000000..73a5f6db9
--- /dev/null
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListVersionsResponse.java
@@ -0,0 +1,1160 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/v2beta1/version.proto
+
+package com.google.cloud.dialogflow.v2beta1;
+
+/**
+ *
+ *
+ * 
+ * The response message for [Versions.ListVersions][google.cloud.dialogflow.v2beta1.Versions.ListVersions].
+ * 

+ *
+ * Protobuf type {@code google.cloud.dialogflow.v2beta1.ListVersionsResponse}
+ */
+public final class ListVersionsResponse extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.v2beta1.ListVersionsResponse)
+    ListVersionsResponseOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use ListVersionsResponse.newBuilder() to construct.
+  private ListVersionsResponse(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+    super(builder);
+  }
+
+  private ListVersionsResponse() {
+    versions_ = java.util.Collections.emptyList();
+    nextPageToken_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new ListVersionsResponse();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private ListVersionsResponse(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+                versions_ = new java.util.ArrayList();
+                mutable_bitField0_ |= 0x00000001;
+              }
+              versions_.add(
+                  input.readMessage(
+                      com.google.cloud.dialogflow.v2beta1.Version.parser(), extensionRegistry));
+              break;
+            }
+          case 18:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              nextPageToken_ = s;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      if (((mutable_bitField0_ & 0x00000001) != 0)) {
+        versions_ = java.util.Collections.unmodifiableList(versions_);
+      }
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.v2beta1.VersionProto
+        .internal_static_google_cloud_dialogflow_v2beta1_ListVersionsResponse_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.v2beta1.VersionProto
+        .internal_static_google_cloud_dialogflow_v2beta1_ListVersionsResponse_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.v2beta1.ListVersionsResponse.class,
+            com.google.cloud.dialogflow.v2beta1.ListVersionsResponse.Builder.class);
+  }
+
+  public static final int VERSIONS_FIELD_NUMBER = 1;
+  private java.util.List versions_;
+  /**
+   *
+   *
+   * 
+   * The list of agent versions. There will be a maximum number of items
+   * returned based on the page_size field in the request.
+   * 

+   *
+   * repeated .google.cloud.dialogflow.v2beta1.Version versions = 1;
+   */
+  @java.lang.Override
+  public java.util.List getVersionsList() {
+    return versions_;
+  }
+  /**
+   *
+   *
+   * 
+   * The list of agent versions. There will be a maximum number of items
+   * returned based on the page_size field in the request.
+   * 

+   *
+   * repeated .google.cloud.dialogflow.v2beta1.Version versions = 1;
+   */
+  @java.lang.Override
+  public java.util.List
+      getVersionsOrBuilderList() {
+    return versions_;
+  }
+  /**
+   *
+   *
+   * 
+   * The list of agent versions. There will be a maximum number of items
+   * returned based on the page_size field in the request.
+   * 

+   *
+   * repeated .google.cloud.dialogflow.v2beta1.Version versions = 1;
+   */
+  @java.lang.Override
+  public int getVersionsCount() {
+    return versions_.size();
+  }
+  /**
+   *
+   *
+   * 
+   * The list of agent versions. There will be a maximum number of items
+   * returned based on the page_size field in the request.
+   * 

+   *
+   * repeated .google.cloud.dialogflow.v2beta1.Version versions = 1;
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.v2beta1.Version getVersions(int index) {
+    return versions_.get(index);
+  }
+  /**
+   *
+   *
+   * 
+   * The list of agent versions. There will be a maximum number of items
+   * returned based on the page_size field in the request.
+   * 

+   *
+   * repeated .google.cloud.dialogflow.v2beta1.Version versions = 1;
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.v2beta1.VersionOrBuilder getVersionsOrBuilder(int index) {
+    return versions_.get(index);
+  }
+
+  public static final int NEXT_PAGE_TOKEN_FIELD_NUMBER = 2;
+  private volatile java.lang.Object nextPageToken_;
+  /**
+   *
+   *
+   * 
+   * Token to retrieve the next page of results, or empty if there are no
+   * more results in the list.
+   * 

+   *
+   * string next_page_token = 2;
+   *
+   * @return The nextPageToken.
+   */
+  @java.lang.Override
+  public java.lang.String getNextPageToken() {
+    java.lang.Object ref = nextPageToken_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      nextPageToken_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * 
+   * Token to retrieve the next page of results, or empty if there are no
+   * more results in the list.
+   * 

+   *
+   * string next_page_token = 2;
+   *
+   * @return The bytes for nextPageToken.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNextPageTokenBytes() {
+    java.lang.Object ref = nextPageToken_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      nextPageToken_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    for (int i = 0; i < versions_.size(); i++) {
+      output.writeMessage(1, versions_.get(i));
+    }
+    if (!getNextPageTokenBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, nextPageToken_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    for (int i = 0; i < versions_.size(); i++) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, versions_.get(i));
+    }
+    if (!getNextPageTokenBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, nextPageToken_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.v2beta1.ListVersionsResponse)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.v2beta1.ListVersionsResponse other =
+        (com.google.cloud.dialogflow.v2beta1.ListVersionsResponse) obj;
+
+    if (!getVersionsList().equals(other.getVersionsList())) return false;
+    if (!getNextPageToken().equals(other.getNextPageToken())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (getVersionsCount() > 0) {
+      hash = (37 * hash) + VERSIONS_FIELD_NUMBER;
+      hash = (53 * hash) + getVersionsList().hashCode();
+    }
+    hash = (37 * hash) + NEXT_PAGE_TOKEN_FIELD_NUMBER;
+    hash = (53 * hash) + getNextPageToken().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.ListVersionsResponse parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.ListVersionsResponse parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.ListVersionsResponse parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.ListVersionsResponse parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.ListVersionsResponse parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.ListVersionsResponse parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.ListVersionsResponse parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.ListVersionsResponse parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.ListVersionsResponse parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.ListVersionsResponse parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.ListVersionsResponse parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.ListVersionsResponse parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.v2beta1.ListVersionsResponse prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * 
+   * The response message for [Versions.ListVersions][google.cloud.dialogflow.v2beta1.Versions.ListVersions].
+   * 

+   *
+   * Protobuf type {@code google.cloud.dialogflow.v2beta1.ListVersionsResponse}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.v2beta1.ListVersionsResponse)
+      com.google.cloud.dialogflow.v2beta1.ListVersionsResponseOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.v2beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_v2beta1_ListVersionsResponse_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.v2beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_v2beta1_ListVersionsResponse_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.v2beta1.ListVersionsResponse.class,
+              com.google.cloud.dialogflow.v2beta1.ListVersionsResponse.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.v2beta1.ListVersionsResponse.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
+        getVersionsFieldBuilder();
+      }
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      if (versionsBuilder_ == null) {
+        versions_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+      } else {
+        versionsBuilder_.clear();
+      }
+      nextPageToken_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.v2beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_v2beta1_ListVersionsResponse_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.ListVersionsResponse getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.v2beta1.ListVersionsResponse.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.ListVersionsResponse build() {
+      com.google.cloud.dialogflow.v2beta1.ListVersionsResponse result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.ListVersionsResponse buildPartial() {
+      com.google.cloud.dialogflow.v2beta1.ListVersionsResponse result =
+          new com.google.cloud.dialogflow.v2beta1.ListVersionsResponse(this);
+      int from_bitField0_ = bitField0_;
+      if (versionsBuilder_ == null) {
+        if (((bitField0_ & 0x00000001) != 0)) {
+          versions_ = java.util.Collections.unmodifiableList(versions_);
+          bitField0_ = (bitField0_ & ~0x00000001);
+        }
+        result.versions_ = versions_;
+      } else {
+        result.versions_ = versionsBuilder_.build();
+      }
+      result.nextPageToken_ = nextPageToken_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.v2beta1.ListVersionsResponse) {
+        return mergeFrom((com.google.cloud.dialogflow.v2beta1.ListVersionsResponse) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.v2beta1.ListVersionsResponse other) {
+      if (other == com.google.cloud.dialogflow.v2beta1.ListVersionsResponse.getDefaultInstance())
+        return this;
+      if (versionsBuilder_ == null) {
+        if (!other.versions_.isEmpty()) {
+          if (versions_.isEmpty()) {
+            versions_ = other.versions_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+          } else {
+            ensureVersionsIsMutable();
+            versions_.addAll(other.versions_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.versions_.isEmpty()) {
+          if (versionsBuilder_.isEmpty()) {
+            versionsBuilder_.dispose();
+            versionsBuilder_ = null;
+            versions_ = other.versions_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+            versionsBuilder_ =
+                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                    ? getVersionsFieldBuilder()
+                    : null;
+          } else {
+            versionsBuilder_.addAllMessages(other.versions_);
+          }
+        }
+      }
+      if (!other.getNextPageToken().isEmpty()) {
+        nextPageToken_ = other.nextPageToken_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.v2beta1.ListVersionsResponse parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.v2beta1.ListVersionsResponse) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private int bitField0_;
+
+    private java.util.List versions_ =
+        java.util.Collections.emptyList();
+
+    private void ensureVersionsIsMutable() {
+      if (!((bitField0_ & 0x00000001) != 0)) {
+        versions_ = new java.util.ArrayList(versions_);
+        bitField0_ |= 0x00000001;
+      }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.v2beta1.Version,
+            com.google.cloud.dialogflow.v2beta1.Version.Builder,
+            com.google.cloud.dialogflow.v2beta1.VersionOrBuilder>
+        versionsBuilder_;
+
+    /**
+     *
+     *
+     * 
+     * The list of agent versions. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * 

+     *
+     * repeated .google.cloud.dialogflow.v2beta1.Version versions = 1;
+     */
+    public java.util.List getVersionsList() {
+      if (versionsBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(versions_);
+      } else {
+        return versionsBuilder_.getMessageList();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * The list of agent versions. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * 

+     *
+     * repeated .google.cloud.dialogflow.v2beta1.Version versions = 1;
+     */
+    public int getVersionsCount() {
+      if (versionsBuilder_ == null) {
+        return versions_.size();
+      } else {
+        return versionsBuilder_.getCount();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * The list of agent versions. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * 

+     *
+     * repeated .google.cloud.dialogflow.v2beta1.Version versions = 1;
+     */
+    public com.google.cloud.dialogflow.v2beta1.Version getVersions(int index) {
+      if (versionsBuilder_ == null) {
+        return versions_.get(index);
+      } else {
+        return versionsBuilder_.getMessage(index);
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * The list of agent versions. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * 

+     *
+     * repeated .google.cloud.dialogflow.v2beta1.Version versions = 1;
+     */
+    public Builder setVersions(int index, com.google.cloud.dialogflow.v2beta1.Version value) {
+      if (versionsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureVersionsIsMutable();
+        versions_.set(index, value);
+        onChanged();
+      } else {
+        versionsBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The list of agent versions. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * 

+     *
+     * repeated .google.cloud.dialogflow.v2beta1.Version versions = 1;
+     */
+    public Builder setVersions(
+        int index, com.google.cloud.dialogflow.v2beta1.Version.Builder builderForValue) {
+      if (versionsBuilder_ == null) {
+        ensureVersionsIsMutable();
+        versions_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        versionsBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The list of agent versions. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * 

+     *
+     * repeated .google.cloud.dialogflow.v2beta1.Version versions = 1;
+     */
+    public Builder addVersions(com.google.cloud.dialogflow.v2beta1.Version value) {
+      if (versionsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureVersionsIsMutable();
+        versions_.add(value);
+        onChanged();
+      } else {
+        versionsBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The list of agent versions. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * 

+     *
+     * repeated .google.cloud.dialogflow.v2beta1.Version versions = 1;
+     */
+    public Builder addVersions(int index, com.google.cloud.dialogflow.v2beta1.Version value) {
+      if (versionsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureVersionsIsMutable();
+        versions_.add(index, value);
+        onChanged();
+      } else {
+        versionsBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The list of agent versions. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * 

+     *
+     * repeated .google.cloud.dialogflow.v2beta1.Version versions = 1;
+     */
+    public Builder addVersions(
+        com.google.cloud.dialogflow.v2beta1.Version.Builder builderForValue) {
+      if (versionsBuilder_ == null) {
+        ensureVersionsIsMutable();
+        versions_.add(builderForValue.build());
+        onChanged();
+      } else {
+        versionsBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The list of agent versions. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * 

+     *
+     * repeated .google.cloud.dialogflow.v2beta1.Version versions = 1;
+     */
+    public Builder addVersions(
+        int index, com.google.cloud.dialogflow.v2beta1.Version.Builder builderForValue) {
+      if (versionsBuilder_ == null) {
+        ensureVersionsIsMutable();
+        versions_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        versionsBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The list of agent versions. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * 

+     *
+     * repeated .google.cloud.dialogflow.v2beta1.Version versions = 1;
+     */
+    public Builder addAllVersions(
+        java.lang.Iterable values) {
+      if (versionsBuilder_ == null) {
+        ensureVersionsIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, versions_);
+        onChanged();
+      } else {
+        versionsBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The list of agent versions. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * 

+     *
+     * repeated .google.cloud.dialogflow.v2beta1.Version versions = 1;
+     */
+    public Builder clearVersions() {
+      if (versionsBuilder_ == null) {
+        versions_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+        onChanged();
+      } else {
+        versionsBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The list of agent versions. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * 

+     *
+     * repeated .google.cloud.dialogflow.v2beta1.Version versions = 1;
+     */
+    public Builder removeVersions(int index) {
+      if (versionsBuilder_ == null) {
+        ensureVersionsIsMutable();
+        versions_.remove(index);
+        onChanged();
+      } else {
+        versionsBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The list of agent versions. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * 

+     *
+     * repeated .google.cloud.dialogflow.v2beta1.Version versions = 1;
+     */
+    public com.google.cloud.dialogflow.v2beta1.Version.Builder getVersionsBuilder(int index) {
+      return getVersionsFieldBuilder().getBuilder(index);
+    }
+    /**
+     *
+     *
+     * 
+     * The list of agent versions. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * 

+     *
+     * repeated .google.cloud.dialogflow.v2beta1.Version versions = 1;
+     */
+    public com.google.cloud.dialogflow.v2beta1.VersionOrBuilder getVersionsOrBuilder(int index) {
+      if (versionsBuilder_ == null) {
+        return versions_.get(index);
+      } else {
+        return versionsBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * The list of agent versions. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * 

+     *
+     * repeated .google.cloud.dialogflow.v2beta1.Version versions = 1;
+     */
+    public java.util.List
+        getVersionsOrBuilderList() {
+      if (versionsBuilder_ != null) {
+        return versionsBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(versions_);
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * The list of agent versions. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * 

+     *
+     * repeated .google.cloud.dialogflow.v2beta1.Version versions = 1;
+     */
+    public com.google.cloud.dialogflow.v2beta1.Version.Builder addVersionsBuilder() {
+      return getVersionsFieldBuilder()
+          .addBuilder(com.google.cloud.dialogflow.v2beta1.Version.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * 
+     * The list of agent versions. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * 

+     *
+     * repeated .google.cloud.dialogflow.v2beta1.Version versions = 1;
+     */
+    public com.google.cloud.dialogflow.v2beta1.Version.Builder addVersionsBuilder(int index) {
+      return getVersionsFieldBuilder()
+          .addBuilder(index, com.google.cloud.dialogflow.v2beta1.Version.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * 
+     * The list of agent versions. There will be a maximum number of items
+     * returned based on the page_size field in the request.
+     * 

+     *
+     * repeated .google.cloud.dialogflow.v2beta1.Version versions = 1;
+     */
+    public java.util.List
+        getVersionsBuilderList() {
+      return getVersionsFieldBuilder().getBuilderList();
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.dialogflow.v2beta1.Version,
+            com.google.cloud.dialogflow.v2beta1.Version.Builder,
+            com.google.cloud.dialogflow.v2beta1.VersionOrBuilder>
+        getVersionsFieldBuilder() {
+      if (versionsBuilder_ == null) {
+        versionsBuilder_ =
+            new com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.dialogflow.v2beta1.Version,
+                com.google.cloud.dialogflow.v2beta1.Version.Builder,
+                com.google.cloud.dialogflow.v2beta1.VersionOrBuilder>(
+                versions_, ((bitField0_ & 0x00000001) != 0), getParentForChildren(), isClean());
+        versions_ = null;
+      }
+      return versionsBuilder_;
+    }
+
+    private java.lang.Object nextPageToken_ = "";
+    /**
+     *
+     *
+     * 
+     * Token to retrieve the next page of results, or empty if there are no
+     * more results in the list.
+     * 

+     *
+     * string next_page_token = 2;
+     *
+     * @return The nextPageToken.
+     */
+    public java.lang.String getNextPageToken() {
+      java.lang.Object ref = nextPageToken_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        nextPageToken_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Token to retrieve the next page of results, or empty if there are no
+     * more results in the list.
+     * 

+     *
+     * string next_page_token = 2;
+     *
+     * @return The bytes for nextPageToken.
+     */
+    public com.google.protobuf.ByteString getNextPageTokenBytes() {
+      java.lang.Object ref = nextPageToken_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        nextPageToken_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Token to retrieve the next page of results, or empty if there are no
+     * more results in the list.
+     * 

+     *
+     * string next_page_token = 2;
+     *
+     * @param value The nextPageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNextPageToken(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      nextPageToken_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Token to retrieve the next page of results, or empty if there are no
+     * more results in the list.
+     * 

+     *
+     * string next_page_token = 2;
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearNextPageToken() {
+
+      nextPageToken_ = getDefaultInstance().getNextPageToken();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Token to retrieve the next page of results, or empty if there are no
+     * more results in the list.
+     * 

+     *
+     * string next_page_token = 2;
+     *
+     * @param value The bytes for nextPageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNextPageTokenBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      nextPageToken_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.v2beta1.ListVersionsResponse)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.v2beta1.ListVersionsResponse)
+  private static final com.google.cloud.dialogflow.v2beta1.ListVersionsResponse DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.v2beta1.ListVersionsResponse();
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.ListVersionsResponse getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser PARSER =
+      new com.google.protobuf.AbstractParser() {
+        @java.lang.Override
+        public ListVersionsResponse parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new ListVersionsResponse(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.v2beta1.ListVersionsResponse getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListVersionsResponseOrBuilder.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListVersionsResponseOrBuilder.java
new file mode 100644
index 000000000..3ad4da354
--- /dev/null
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListVersionsResponseOrBuilder.java
@@ -0,0 +1,109 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/v2beta1/version.proto
+
+package com.google.cloud.dialogflow.v2beta1;
+
+public interface ListVersionsResponseOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.v2beta1.ListVersionsResponse)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * 
+   * The list of agent versions. There will be a maximum number of items
+   * returned based on the page_size field in the request.
+   * 

+   *
+   * repeated .google.cloud.dialogflow.v2beta1.Version versions = 1;
+   */
+  java.util.List getVersionsList();
+  /**
+   *
+   *
+   * 
+   * The list of agent versions. There will be a maximum number of items
+   * returned based on the page_size field in the request.
+   * 

+   *
+   * repeated .google.cloud.dialogflow.v2beta1.Version versions = 1;
+   */
+  com.google.cloud.dialogflow.v2beta1.Version getVersions(int index);
+  /**
+   *
+   *
+   * 
+   * The list of agent versions. There will be a maximum number of items
+   * returned based on the page_size field in the request.
+   * 

+   *
+   * repeated .google.cloud.dialogflow.v2beta1.Version versions = 1;
+   */
+  int getVersionsCount();
+  /**
+   *
+   *
+   * 
+   * The list of agent versions. There will be a maximum number of items
+   * returned based on the page_size field in the request.
+   * 

+   *
+   * repeated .google.cloud.dialogflow.v2beta1.Version versions = 1;
+   */
+  java.util.List
+      getVersionsOrBuilderList();
+  /**
+   *
+   *
+   * 
+   * The list of agent versions. There will be a maximum number of items
+   * returned based on the page_size field in the request.
+   * 

+   *
+   * repeated .google.cloud.dialogflow.v2beta1.Version versions = 1;
+   */
+  com.google.cloud.dialogflow.v2beta1.VersionOrBuilder getVersionsOrBuilder(int index);
+
+  /**
+   *
+   *
+   * 
+   * Token to retrieve the next page of results, or empty if there are no
+   * more results in the list.
+   * 

+   *
+   * string next_page_token = 2;
+   *
+   * @return The nextPageToken.
+   */
+  java.lang.String getNextPageToken();
+  /**
+   *
+   *
+   * 
+   * Token to retrieve the next page of results, or empty if there are no
+   * more results in the list.
+   * 

+   *
+   * string next_page_token = 2;
+   *
+   * @return The bytes for nextPageToken.
+   */
+  com.google.protobuf.ByteString getNextPageTokenBytes();
+}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ParticipantProto.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ParticipantProto.java
index 11b9fbca2..2bebc5144 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ParticipantProto.java
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ParticipantProto.java
@@ -202,280 +202,281 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "le/api/client.proto\032\037google/api/field_be"
           + "havior.proto\032\031google/api/resource.proto\032"
           + "2google/cloud/dialogflow/v2beta1/audio_c"
-          + "onfig.proto\032-google/cloud/dialogflow/v2b"
-          + "eta1/session.proto\032\031google/protobuf/any."
-          + "proto\032\036google/protobuf/duration.proto\032 g"
-          + "oogle/protobuf/field_mask.proto\032\034google/"
-          + "protobuf/struct.proto\032\037google/protobuf/t"
-          + "imestamp.proto\032\027google/rpc/status.proto\""
-          + "\275\003\n\013Participant\022\021\n\004name\030\001 \001(\tB\003\340A\001\022D\n\004ro"
-          + "le\030\002 \001(\01621.google.cloud.dialogflow.v2bet"
-          + "a1.Participant.RoleB\003\340A\005\022(\n\033obfuscated_e"
-          + "xternal_user_id\030\007 \001(\tB\003\340A\001\"P\n\004Role\022\024\n\020RO"
-          + "LE_UNSPECIFIED\020\000\022\017\n\013HUMAN_AGENT\020\001\022\023\n\017AUT"
-          + "OMATED_AGENT\020\002\022\014\n\010END_USER\020\003:\330\001\352A\324\001\n%dia"
-          + "logflow.googleapis.com/Participant\022Jproj"
-          + "ects/{project}/conversations/{conversati"
-          + "on}/participants/{participant}\022_projects"
-          + "/{project}/locations/{location}/conversa"
-          + "tions/{conversation}/participants/{parti"
-          + "cipant}\"\233\005\n\007Message\022\021\n\004name\030\001 \001(\tB\003\340A\001\022\024"
-          + "\n\007content\030\002 \001(\tB\003\340A\002\022\032\n\rlanguage_code\030\003 "
-          + "\001(\tB\003\340A\001\022\030\n\013participant\030\004 \001(\tB\003\340A\003\022P\n\020pa"
-          + "rticipant_role\030\005 \001(\01621.google.cloud.dial"
-          + "ogflow.v2beta1.Participant.RoleB\003\340A\003\0224\n\013"
-          + "create_time\030\006 \001(\0132\032.google.protobuf.Time"
-          + "stampB\003\340A\003\0222\n\tsend_time\030\t \001(\0132\032.google.p"
-          + "rotobuf.TimestampB\003\340A\001\022S\n\022message_annota"
-          + "tion\030\007 \001(\01322.google.cloud.dialogflow.v2b"
-          + "eta1.MessageAnnotationB\003\340A\003\022Y\n\022sentiment"
-          + "_analysis\030\010 \001(\01328.google.cloud.dialogflo"
-          + "w.v2beta1.SentimentAnalysisResultB\003\340A\003:\304"
-          + "\001\352A\300\001\n!dialogflow.googleapis.com/Message"
-          + "\022Bprojects/{project}/conversations/{conv"
-          + "ersation}/messages/{message}\022Wprojects/{"
-          + "project}/locations/{location}/conversati"
-          + "ons/{conversation}/messages/{message}\"\241\001"
-          + "\n\030CreateParticipantRequest\022=\n\006parent\030\001 \001"
-          + "(\tB-\340A\002\372A\'\022%dialogflow.googleapis.com/Pa"
-          + "rticipant\022F\n\013participant\030\002 \001(\0132,.google."
-          + "cloud.dialogflow.v2beta1.ParticipantB\003\340A"
-          + "\002\"T\n\025GetParticipantRequest\022;\n\004name\030\001 \001(\t"
-          + "B-\340A\002\372A\'\n%dialogflow.googleapis.com/Part"
-          + "icipant\"\211\001\n\027ListParticipantsRequest\022=\n\006p"
-          + "arent\030\001 \001(\tB-\340A\002\372A\'\022%dialogflow.googleap"
-          + "is.com/Participant\022\026\n\tpage_size\030\002 \001(\005B\003\340"
-          + "A\001\022\027\n\npage_token\030\003 \001(\tB\003\340A\001\"w\n\030ListParti"
-          + "cipantsResponse\022B\n\014participants\030\001 \003(\0132,."
-          + "google.cloud.dialogflow.v2beta1.Particip"
-          + "ant\022\027\n\017next_page_token\030\002 \001(\t\"\230\001\n\030UpdateP"
-          + "articipantRequest\022F\n\013participant\030\001 \001(\0132,"
-          + ".google.cloud.dialogflow.v2beta1.Partici"
-          + "pantB\003\340A\002\0224\n\013update_mask\030\002 \001(\0132\032.google."
-          + "protobuf.FieldMaskB\003\340A\002\"`\n\013OutputAudio\022B"
-          + "\n\006config\030\001 \001(\01322.google.cloud.dialogflow"
-          + ".v2beta1.OutputAudioConfig\022\r\n\005audio\030\002 \001("
-          + "\014\"\322\002\n\023AutomatedAgentReply\022W\n\026detect_inte"
-          + "nt_response\030\001 \001(\01325.google.cloud.dialogf"
-          + "low.v2beta1.DetectIntentResponseH\000\022K\n\021re"
-          + "sponse_messages\030\003 \003(\01320.google.cloud.dia"
-          + "logflow.v2beta1.ResponseMessage\0227\n\006inten"
-          + "t\030\004 \001(\tB%\372A\"\n dialogflow.googleapis.com/"
-          + "IntentH\001\022\017\n\005event\030\005 \001(\tH\001\0226\n\025cx_session_"
-          + "parameters\030\006 \001(\0132\027.google.protobuf.Struc"
-          + "tB\n\n\010responseB\007\n\005match\"\252\001\n\021SuggestionFea"
-          + "ture\022E\n\004type\030\001 \001(\01627.google.cloud.dialog"
-          + "flow.v2beta1.SuggestionFeature.Type\"N\n\004T"
-          + "ype\022\024\n\020TYPE_UNSPECIFIED\020\000\022\026\n\022ARTICLE_SUG"
-          + "GESTION\020\001\022\007\n\003FAQ\020\002\022\017\n\013SMART_REPLY\020\003\"\315\003\n\025"
-          + "AnalyzeContentRequest\022B\n\013participant\030\001 \001"
-          + "(\tB-\340A\002\372A\'\n%dialogflow.googleapis.com/Pa"
-          + "rticipant\022@\n\ntext_input\030\006 \001(\0132*.google.c"
-          + "loud.dialogflow.v2beta1.TextInputH\000\022B\n\013e"
-          + "vent_input\030\010 \001(\0132+.google.cloud.dialogfl"
-          + "ow.v2beta1.EventInputH\000\022N\n\022reply_audio_c"
-          + "onfig\030\005 \001(\01322.google.cloud.dialogflow.v2"
-          + "beta1.OutputAudioConfig\022F\n\014query_params\030"
-          + "\t \001(\01320.google.cloud.dialogflow.v2beta1."
-          + "QueryParameters\0225\n\021message_send_time\030\n \001"
-          + "(\0132\032.google.protobuf.Timestamp\022\022\n\nreques"
-          + "t_id\030\013 \001(\tB\007\n\005input\",\n\016DtmfParameters\022\032\n"
-          + "\022accepts_dtmf_input\030\001 \001(\010\"\374\003\n\026AnalyzeCon"
-          + "tentResponse\022\022\n\nreply_text\030\001 \001(\t\022A\n\013repl"
-          + "y_audio\030\002 \001(\0132,.google.cloud.dialogflow."
-          + "v2beta1.OutputAudio\022S\n\025automated_agent_r"
-          + "eply\030\003 \001(\01324.google.cloud.dialogflow.v2b"
-          + "eta1.AutomatedAgentReply\0229\n\007message\030\005 \001("
-          + "\0132(.google.cloud.dialogflow.v2beta1.Mess"
-          + "age\022Y\n\036human_agent_suggestion_results\030\006 "
-          + "\003(\01321.google.cloud.dialogflow.v2beta1.Su"
-          + "ggestionResult\022V\n\033end_user_suggestion_re"
-          + "sults\030\007 \003(\01321.google.cloud.dialogflow.v2"
-          + "beta1.SuggestionResult\022H\n\017dtmf_parameter"
-          + "s\030\t \001(\0132/.google.cloud.dialogflow.v2beta"
-          + "1.DtmfParameters\"j\n\024AnnotatedMessagePart"
-          + "\022\014\n\004text\030\001 \001(\t\022\023\n\013entity_type\030\002 \001(\t\022/\n\017f"
-          + "ormatted_value\030\003 \001(\0132\026.google.protobuf.V"
-          + "alue\"s\n\021MessageAnnotation\022D\n\005parts\030\001 \003(\013"
-          + "25.google.cloud.dialogflow.v2beta1.Annot"
-          + "atedMessagePart\022\030\n\020contain_entities\030\002 \001("
-          + "\010\"\325\001\n\rArticleAnswer\022\r\n\005title\030\001 \001(\t\022\013\n\003ur"
-          + "i\030\002 \001(\t\022\020\n\010snippets\030\003 \003(\t\022N\n\010metadata\030\005 "
-          + "\003(\0132<.google.cloud.dialogflow.v2beta1.Ar"
-          + "ticleAnswer.MetadataEntry\022\025\n\ranswer_reco"
-          + "rd\030\006 \001(\t\032/\n\rMetadataEntry\022\013\n\003key\030\001 \001(\t\022\r"
-          + "\n\005value\030\002 \001(\t:\0028\001\"\345\001\n\tFaqAnswer\022\016\n\006answe"
-          + "r\030\001 \001(\t\022\022\n\nconfidence\030\002 \001(\002\022\020\n\010question\030"
-          + "\003 \001(\t\022\016\n\006source\030\004 \001(\t\022J\n\010metadata\030\005 \003(\0132"
-          + "8.google.cloud.dialogflow.v2beta1.FaqAns"
-          + "wer.MetadataEntry\022\025\n\ranswer_record\030\006 \001(\t"
-          + "\032/\n\rMetadataEntry\022\013\n\003key\030\001 \001(\t\022\r\n\005value\030"
-          + "\002 \001(\t:\0028\001\"L\n\020SmartReplyAnswer\022\r\n\005reply\030\001"
-          + " \001(\t\022\022\n\nconfidence\030\002 \001(\002\022\025\n\ranswer_recor"
-          + "d\030\003 \001(\t\"\371\002\n\020SuggestionResult\022#\n\005error\030\001 "
-          + "\001(\0132\022.google.rpc.StatusH\000\022]\n\031suggest_art"
-          + "icles_response\030\002 \001(\01328.google.cloud.dial"
-          + "ogflow.v2beta1.SuggestArticlesResponseH\000"
-          + "\022b\n\034suggest_faq_answers_response\030\003 \001(\0132:"
-          + ".google.cloud.dialogflow.v2beta1.Suggest"
-          + "FaqAnswersResponseH\000\022f\n\036suggest_smart_re"
-          + "plies_response\030\004 \001(\0132<.google.cloud.dial"
-          + "ogflow.v2beta1.SuggestSmartRepliesRespon"
-          + "seH\000B\025\n\023suggestion_response\"\265\001\n\026SuggestA"
-          + "rticlesRequest\022=\n\006parent\030\001 \001(\tB-\340A\002\372A\'\n%"
-          + "dialogflow.googleapis.com/Participant\022A\n"
-          + "\016latest_message\030\002 \001(\tB)\340A\001\372A#\n!dialogflo"
-          + "w.googleapis.com/Message\022\031\n\014context_size"
-          + "\030\003 \001(\005B\003\340A\001\"\220\001\n\027SuggestArticlesResponse\022"
-          + "G\n\017article_answers\030\001 \003(\0132..google.cloud."
-          + "dialogflow.v2beta1.ArticleAnswer\022\026\n\016late"
-          + "st_message\030\002 \001(\t\022\024\n\014context_size\030\003 \001(\005\"\267"
-          + "\001\n\030SuggestFaqAnswersRequest\022=\n\006parent\030\001 "
+          + "onfig.proto\032)google/cloud/dialogflow/v2b"
+          + "eta1/gcs.proto\032-google/cloud/dialogflow/"
+          + "v2beta1/session.proto\032\031google/protobuf/a"
+          + "ny.proto\032\036google/protobuf/duration.proto"
+          + "\032 google/protobuf/field_mask.proto\032\034goog"
+          + "le/protobuf/struct.proto\032\037google/protobu"
+          + "f/timestamp.proto\032\027google/rpc/status.pro"
+          + "to\"\275\003\n\013Participant\022\021\n\004name\030\001 \001(\tB\003\340A\001\022D\n"
+          + "\004role\030\002 \001(\01621.google.cloud.dialogflow.v2"
+          + "beta1.Participant.RoleB\003\340A\005\022(\n\033obfuscate"
+          + "d_external_user_id\030\007 \001(\tB\003\340A\001\"P\n\004Role\022\024\n"
+          + "\020ROLE_UNSPECIFIED\020\000\022\017\n\013HUMAN_AGENT\020\001\022\023\n\017"
+          + "AUTOMATED_AGENT\020\002\022\014\n\010END_USER\020\003:\330\001\352A\324\001\n%"
+          + "dialogflow.googleapis.com/Participant\022Jp"
+          + "rojects/{project}/conversations/{convers"
+          + "ation}/participants/{participant}\022_proje"
+          + "cts/{project}/locations/{location}/conve"
+          + "rsations/{conversation}/participants/{pa"
+          + "rticipant}\"\233\005\n\007Message\022\021\n\004name\030\001 \001(\tB\003\340A"
+          + "\001\022\024\n\007content\030\002 \001(\tB\003\340A\002\022\032\n\rlanguage_code"
+          + "\030\003 \001(\tB\003\340A\001\022\030\n\013participant\030\004 \001(\tB\003\340A\003\022P\n"
+          + "\020participant_role\030\005 \001(\01621.google.cloud.d"
+          + "ialogflow.v2beta1.Participant.RoleB\003\340A\003\022"
+          + "4\n\013create_time\030\006 \001(\0132\032.google.protobuf.T"
+          + "imestampB\003\340A\003\0222\n\tsend_time\030\t \001(\0132\032.googl"
+          + "e.protobuf.TimestampB\003\340A\001\022S\n\022message_ann"
+          + "otation\030\007 \001(\01322.google.cloud.dialogflow."
+          + "v2beta1.MessageAnnotationB\003\340A\003\022Y\n\022sentim"
+          + "ent_analysis\030\010 \001(\01328.google.cloud.dialog"
+          + "flow.v2beta1.SentimentAnalysisResultB\003\340A"
+          + "\003:\304\001\352A\300\001\n!dialogflow.googleapis.com/Mess"
+          + "age\022Bprojects/{project}/conversations/{c"
+          + "onversation}/messages/{message}\022Wproject"
+          + "s/{project}/locations/{location}/convers"
+          + "ations/{conversation}/messages/{message}"
+          + "\"\241\001\n\030CreateParticipantRequest\022=\n\006parent\030"
+          + "\001 \001(\tB-\340A\002\372A\'\022%dialogflow.googleapis.com"
+          + "/Participant\022F\n\013participant\030\002 \001(\0132,.goog"
+          + "le.cloud.dialogflow.v2beta1.ParticipantB"
+          + "\003\340A\002\"T\n\025GetParticipantRequest\022;\n\004name\030\001 "
           + "\001(\tB-\340A\002\372A\'\n%dialogflow.googleapis.com/P"
-          + "articipant\022A\n\016latest_message\030\002 \001(\tB)\340A\001\372"
-          + "A#\n!dialogflow.googleapis.com/Message\022\031\n"
-          + "\014context_size\030\003 \001(\005B\003\340A\001\"\212\001\n\031SuggestFaqA"
-          + "nswersResponse\022?\n\013faq_answers\030\001 \003(\0132*.go"
-          + "ogle.cloud.dialogflow.v2beta1.FaqAnswer\022"
-          + "\026\n\016latest_message\030\002 \001(\t\022\024\n\014context_size\030"
-          + "\003 \001(\005\"\371\001\n\032SuggestSmartRepliesRequest\022=\n\006"
-          + "parent\030\001 \001(\tB-\340A\002\372A\'\n%dialogflow.googlea"
-          + "pis.com/Participant\022F\n\022current_text_inpu"
-          + "t\030\004 \001(\0132*.google.cloud.dialogflow.v2beta"
-          + "1.TextInput\022>\n\016latest_message\030\002 \001(\tB&\372A#"
-          + "\n!dialogflow.googleapis.com/Message\022\024\n\014c"
-          + "ontext_size\030\003 \001(\005\"\233\001\n\033SuggestSmartReplie"
-          + "sResponse\022N\n\023smart_reply_answers\030\001 \003(\01321"
-          + ".google.cloud.dialogflow.v2beta1.SmartRe"
-          + "plyAnswer\022\026\n\016latest_message\030\002 \001(\t\022\024\n\014con"
-          + "text_size\030\003 \001(\005\"\304\005\n\nSuggestion\022\014\n\004name\030\001"
-          + " \001(\t\022E\n\010articles\030\002 \003(\01323.google.cloud.di"
-          + "alogflow.v2beta1.Suggestion.Article\022J\n\013f"
-          + "aq_answers\030\004 \003(\01325.google.cloud.dialogfl"
-          + "ow.v2beta1.Suggestion.FaqAnswer\022/\n\013creat"
-          + "e_time\030\005 \001(\0132\032.google.protobuf.Timestamp"
-          + "\022\026\n\016latest_message\030\007 \001(\t\032\324\001\n\007Article\022\r\n\005"
-          + "title\030\001 \001(\t\022\013\n\003uri\030\002 \001(\t\022\020\n\010snippets\030\003 \003"
-          + "(\t\022S\n\010metadata\030\005 \003(\0132A.google.cloud.dial"
-          + "ogflow.v2beta1.Suggestion.Article.Metada"
-          + "taEntry\022\025\n\ranswer_record\030\006 \001(\t\032/\n\rMetada"
-          + "taEntry\022\013\n\003key\030\001 \001(\t\022\r\n\005value\030\002 \001(\t:\0028\001\032"
-          + "\360\001\n\tFaqAnswer\022\016\n\006answer\030\001 \001(\t\022\022\n\nconfide"
-          + "nce\030\002 \001(\002\022\020\n\010question\030\003 \001(\t\022\016\n\006source\030\004 "
-          + "\001(\t\022U\n\010metadata\030\005 \003(\0132C.google.cloud.dia"
-          + "logflow.v2beta1.Suggestion.FaqAnswer.Met"
+          + "articipant\"\211\001\n\027ListParticipantsRequest\022="
+          + "\n\006parent\030\001 \001(\tB-\340A\002\372A\'\022%dialogflow.googl"
+          + "eapis.com/Participant\022\026\n\tpage_size\030\002 \001(\005"
+          + "B\003\340A\001\022\027\n\npage_token\030\003 \001(\tB\003\340A\001\"w\n\030ListPa"
+          + "rticipantsResponse\022B\n\014participants\030\001 \003(\013"
+          + "2,.google.cloud.dialogflow.v2beta1.Parti"
+          + "cipant\022\027\n\017next_page_token\030\002 \001(\t\"\230\001\n\030Upda"
+          + "teParticipantRequest\022F\n\013participant\030\001 \001("
+          + "\0132,.google.cloud.dialogflow.v2beta1.Part"
+          + "icipantB\003\340A\002\0224\n\013update_mask\030\002 \001(\0132\032.goog"
+          + "le.protobuf.FieldMaskB\003\340A\002\"`\n\013OutputAudi"
+          + "o\022B\n\006config\030\001 \001(\01322.google.cloud.dialogf"
+          + "low.v2beta1.OutputAudioConfig\022\r\n\005audio\030\002"
+          + " \001(\014\"\322\002\n\023AutomatedAgentReply\022W\n\026detect_i"
+          + "ntent_response\030\001 \001(\01325.google.cloud.dial"
+          + "ogflow.v2beta1.DetectIntentResponseH\000\022K\n"
+          + "\021response_messages\030\003 \003(\01320.google.cloud."
+          + "dialogflow.v2beta1.ResponseMessage\0227\n\006in"
+          + "tent\030\004 \001(\tB%\372A\"\n dialogflow.googleapis.c"
+          + "om/IntentH\001\022\017\n\005event\030\005 \001(\tH\001\0226\n\025cx_sessi"
+          + "on_parameters\030\006 \001(\0132\027.google.protobuf.St"
+          + "ructB\n\n\010responseB\007\n\005match\"\252\001\n\021Suggestion"
+          + "Feature\022E\n\004type\030\001 \001(\01627.google.cloud.dia"
+          + "logflow.v2beta1.SuggestionFeature.Type\"N"
+          + "\n\004Type\022\024\n\020TYPE_UNSPECIFIED\020\000\022\026\n\022ARTICLE_"
+          + "SUGGESTION\020\001\022\007\n\003FAQ\020\002\022\017\n\013SMART_REPLY\020\003\"\315"
+          + "\003\n\025AnalyzeContentRequest\022B\n\013participant\030"
+          + "\001 \001(\tB-\340A\002\372A\'\n%dialogflow.googleapis.com"
+          + "/Participant\022@\n\ntext_input\030\006 \001(\0132*.googl"
+          + "e.cloud.dialogflow.v2beta1.TextInputH\000\022B"
+          + "\n\013event_input\030\010 \001(\0132+.google.cloud.dialo"
+          + "gflow.v2beta1.EventInputH\000\022N\n\022reply_audi"
+          + "o_config\030\005 \001(\01322.google.cloud.dialogflow"
+          + ".v2beta1.OutputAudioConfig\022F\n\014query_para"
+          + "ms\030\t \001(\01320.google.cloud.dialogflow.v2bet"
+          + "a1.QueryParameters\0225\n\021message_send_time\030"
+          + "\n \001(\0132\032.google.protobuf.Timestamp\022\022\n\nreq"
+          + "uest_id\030\013 \001(\tB\007\n\005input\",\n\016DtmfParameters"
+          + "\022\032\n\022accepts_dtmf_input\030\001 \001(\010\"\374\003\n\026Analyze"
+          + "ContentResponse\022\022\n\nreply_text\030\001 \001(\t\022A\n\013r"
+          + "eply_audio\030\002 \001(\0132,.google.cloud.dialogfl"
+          + "ow.v2beta1.OutputAudio\022S\n\025automated_agen"
+          + "t_reply\030\003 \001(\01324.google.cloud.dialogflow."
+          + "v2beta1.AutomatedAgentReply\0229\n\007message\030\005"
+          + " \001(\0132(.google.cloud.dialogflow.v2beta1.M"
+          + "essage\022Y\n\036human_agent_suggestion_results"
+          + "\030\006 \003(\01321.google.cloud.dialogflow.v2beta1"
+          + ".SuggestionResult\022V\n\033end_user_suggestion"
+          + "_results\030\007 \003(\01321.google.cloud.dialogflow"
+          + ".v2beta1.SuggestionResult\022H\n\017dtmf_parame"
+          + "ters\030\t \001(\0132/.google.cloud.dialogflow.v2b"
+          + "eta1.DtmfParameters\"j\n\024AnnotatedMessageP"
+          + "art\022\014\n\004text\030\001 \001(\t\022\023\n\013entity_type\030\002 \001(\t\022/"
+          + "\n\017formatted_value\030\003 \001(\0132\026.google.protobu"
+          + "f.Value\"s\n\021MessageAnnotation\022D\n\005parts\030\001 "
+          + "\003(\01325.google.cloud.dialogflow.v2beta1.An"
+          + "notatedMessagePart\022\030\n\020contain_entities\030\002"
+          + " \001(\010\"\325\001\n\rArticleAnswer\022\r\n\005title\030\001 \001(\t\022\013\n"
+          + "\003uri\030\002 \001(\t\022\020\n\010snippets\030\003 \003(\t\022N\n\010metadata"
+          + "\030\005 \003(\0132<.google.cloud.dialogflow.v2beta1"
+          + ".ArticleAnswer.MetadataEntry\022\025\n\ranswer_r"
+          + "ecord\030\006 \001(\t\032/\n\rMetadataEntry\022\013\n\003key\030\001 \001("
+          + "\t\022\r\n\005value\030\002 \001(\t:\0028\001\"\345\001\n\tFaqAnswer\022\016\n\006an"
+          + "swer\030\001 \001(\t\022\022\n\nconfidence\030\002 \001(\002\022\020\n\010questi"
+          + "on\030\003 \001(\t\022\016\n\006source\030\004 \001(\t\022J\n\010metadata\030\005 \003"
+          + "(\01328.google.cloud.dialogflow.v2beta1.Faq"
+          + "Answer.MetadataEntry\022\025\n\ranswer_record\030\006 "
+          + "\001(\t\032/\n\rMetadataEntry\022\013\n\003key\030\001 \001(\t\022\r\n\005val"
+          + "ue\030\002 \001(\t:\0028\001\"L\n\020SmartReplyAnswer\022\r\n\005repl"
+          + "y\030\001 \001(\t\022\022\n\nconfidence\030\002 \001(\002\022\025\n\ranswer_re"
+          + "cord\030\003 \001(\t\"\371\002\n\020SuggestionResult\022#\n\005error"
+          + "\030\001 \001(\0132\022.google.rpc.StatusH\000\022]\n\031suggest_"
+          + "articles_response\030\002 \001(\01328.google.cloud.d"
+          + "ialogflow.v2beta1.SuggestArticlesRespons"
+          + "eH\000\022b\n\034suggest_faq_answers_response\030\003 \001("
+          + "\0132:.google.cloud.dialogflow.v2beta1.Sugg"
+          + "estFaqAnswersResponseH\000\022f\n\036suggest_smart"
+          + "_replies_response\030\004 \001(\0132<.google.cloud.d"
+          + "ialogflow.v2beta1.SuggestSmartRepliesRes"
+          + "ponseH\000B\025\n\023suggestion_response\"\265\001\n\026Sugge"
+          + "stArticlesRequest\022=\n\006parent\030\001 \001(\tB-\340A\002\372A"
+          + "\'\n%dialogflow.googleapis.com/Participant"
+          + "\022A\n\016latest_message\030\002 \001(\tB)\340A\001\372A#\n!dialog"
+          + "flow.googleapis.com/Message\022\031\n\014context_s"
+          + "ize\030\003 \001(\005B\003\340A\001\"\220\001\n\027SuggestArticlesRespon"
+          + "se\022G\n\017article_answers\030\001 \003(\0132..google.clo"
+          + "ud.dialogflow.v2beta1.ArticleAnswer\022\026\n\016l"
+          + "atest_message\030\002 \001(\t\022\024\n\014context_size\030\003 \001("
+          + "\005\"\267\001\n\030SuggestFaqAnswersRequest\022=\n\006parent"
+          + "\030\001 \001(\tB-\340A\002\372A\'\n%dialogflow.googleapis.co"
+          + "m/Participant\022A\n\016latest_message\030\002 \001(\tB)\340"
+          + "A\001\372A#\n!dialogflow.googleapis.com/Message"
+          + "\022\031\n\014context_size\030\003 \001(\005B\003\340A\001\"\212\001\n\031SuggestF"
+          + "aqAnswersResponse\022?\n\013faq_answers\030\001 \003(\0132*"
+          + ".google.cloud.dialogflow.v2beta1.FaqAnsw"
+          + "er\022\026\n\016latest_message\030\002 \001(\t\022\024\n\014context_si"
+          + "ze\030\003 \001(\005\"\371\001\n\032SuggestSmartRepliesRequest\022"
+          + "=\n\006parent\030\001 \001(\tB-\340A\002\372A\'\n%dialogflow.goog"
+          + "leapis.com/Participant\022F\n\022current_text_i"
+          + "nput\030\004 \001(\0132*.google.cloud.dialogflow.v2b"
+          + "eta1.TextInput\022>\n\016latest_message\030\002 \001(\tB&"
+          + "\372A#\n!dialogflow.googleapis.com/Message\022\024"
+          + "\n\014context_size\030\003 \001(\005\"\233\001\n\033SuggestSmartRep"
+          + "liesResponse\022N\n\023smart_reply_answers\030\001 \003("
+          + "\01321.google.cloud.dialogflow.v2beta1.Smar"
+          + "tReplyAnswer\022\026\n\016latest_message\030\002 \001(\t\022\024\n\014"
+          + "context_size\030\003 \001(\005\"\304\005\n\nSuggestion\022\014\n\004nam"
+          + "e\030\001 \001(\t\022E\n\010articles\030\002 \003(\01323.google.cloud"
+          + ".dialogflow.v2beta1.Suggestion.Article\022J"
+          + "\n\013faq_answers\030\004 \003(\01325.google.cloud.dialo"
+          + "gflow.v2beta1.Suggestion.FaqAnswer\022/\n\013cr"
+          + "eate_time\030\005 \001(\0132\032.google.protobuf.Timest"
+          + "amp\022\026\n\016latest_message\030\007 \001(\t\032\324\001\n\007Article\022"
+          + "\r\n\005title\030\001 \001(\t\022\013\n\003uri\030\002 \001(\t\022\020\n\010snippets\030"
+          + "\003 \003(\t\022S\n\010metadata\030\005 \003(\0132A.google.cloud.d"
+          + "ialogflow.v2beta1.Suggestion.Article.Met"
           + "adataEntry\022\025\n\ranswer_record\030\006 \001(\t\032/\n\rMet"
           + "adataEntry\022\013\n\003key\030\001 \001(\t\022\r\n\005value\030\002 \001(\t:\002"
-          + "8\001:\002\030\001\"c\n\026ListSuggestionsRequest\022\016\n\006pare"
-          + "nt\030\001 \001(\t\022\021\n\tpage_size\030\002 \001(\005\022\022\n\npage_toke"
-          + "n\030\003 \001(\t\022\016\n\006filter\030\004 \001(\t:\002\030\001\"x\n\027ListSugge"
-          + "stionsResponse\022@\n\013suggestions\030\001 \003(\0132+.go"
-          + "ogle.cloud.dialogflow.v2beta1.Suggestion"
-          + "\022\027\n\017next_page_token\030\002 \001(\t:\002\030\001\"\\\n\030Compile"
-          + "SuggestionRequest\022\016\n\006parent\030\001 \001(\t\022\026\n\016lat"
-          + "est_message\030\002 \001(\t\022\024\n\014context_size\030\003 \001(\005:"
-          + "\002\030\001\"\216\001\n\031CompileSuggestionResponse\022?\n\nsug"
-          + "gestion\030\001 \001(\0132+.google.cloud.dialogflow."
-          + "v2beta1.Suggestion\022\026\n\016latest_message\030\002 \001"
-          + "(\t\022\024\n\014context_size\030\003 \001(\005:\002\030\001\"\263\003\n\017Respons"
-          + "eMessage\022E\n\004text\030\001 \001(\01325.google.cloud.di"
-          + "alogflow.v2beta1.ResponseMessage.TextH\000\022"
-          + "*\n\007payload\030\002 \001(\0132\027.google.protobuf.Struc"
-          + "tH\000\022_\n\022live_agent_handoff\030\003 \001(\0132A.google"
-          + ".cloud.dialogflow.v2beta1.ResponseMessag"
-          + "e.LiveAgentHandoffH\000\022Z\n\017end_interaction\030"
-          + "\004 \001(\0132?.google.cloud.dialogflow.v2beta1."
-          + "ResponseMessage.EndInteractionH\000\032\024\n\004Text"
-          + "\022\014\n\004text\030\001 \003(\t\032=\n\020LiveAgentHandoff\022)\n\010me"
-          + "tadata\030\001 \001(\0132\027.google.protobuf.Struct\032\020\n"
-          + "\016EndInteractionB\t\n\007message2\310\031\n\014Participa"
-          + "nts\022\271\002\n\021CreateParticipant\0229.google.cloud"
-          + ".dialogflow.v2beta1.CreateParticipantReq"
-          + "uest\032,.google.cloud.dialogflow.v2beta1.P"
-          + "articipant\"\272\001\202\323\344\223\002\236\001\"9/v2beta1/{parent=p"
-          + "rojects/*/conversations/*}/participants:"
-          + "\013participantZT\"E/v2beta1/{parent=project"
-          + "s/*/locations/*/conversations/*}/partici"
-          + "pants:\013participant\332A\022parent,participant\022"
-          + "\213\002\n\016GetParticipant\0226.google.cloud.dialog"
-          + "flow.v2beta1.GetParticipantRequest\032,.goo"
-          + "gle.cloud.dialogflow.v2beta1.Participant"
-          + "\"\222\001\202\323\344\223\002\204\001\0229/v2beta1/{name=projects/*/co"
-          + "nversations/*/participants/*}ZG\022E/v2beta"
-          + "1/{name=projects/*/locations/*/conversat"
-          + "ions/*/participants/*}\332A\004name\022\236\002\n\020ListPa"
-          + "rticipants\0228.google.cloud.dialogflow.v2b"
-          + "eta1.ListParticipantsRequest\0329.google.cl"
-          + "oud.dialogflow.v2beta1.ListParticipantsR"
-          + "esponse\"\224\001\202\323\344\223\002\204\001\0229/v2beta1/{parent=proj"
-          + "ects/*/conversations/*}/participantsZG\022E"
-          + "/v2beta1/{parent=projects/*/locations/*/"
-          + "conversations/*}/participants\332A\006parent\022\326"
-          + "\002\n\021UpdateParticipant\0229.google.cloud.dial"
-          + "ogflow.v2beta1.UpdateParticipantRequest\032"
-          + ",.google.cloud.dialogflow.v2beta1.Partic"
-          + "ipant\"\327\001\202\323\344\223\002\266\0012E/v2beta1/{participant.n"
-          + "ame=projects/*/conversations/*/participa"
-          + "nts/*}:\013participantZ`2Q/v2beta1/{partici"
-          + "pant.name=projects/*/locations/*/convers"
-          + "ations/*/participants/*}:\013participant\332A\027"
-          + "participant,update_mask\022\364\002\n\016AnalyzeConte"
-          + "nt\0226.google.cloud.dialogflow.v2beta1.Ana"
-          + "lyzeContentRequest\0327.google.cloud.dialog"
-          + "flow.v2beta1.AnalyzeContentResponse\"\360\001\202\323"
-          + "\344\223\002\266\001\"O/v2beta1/{participant=projects/*/"
-          + "conversations/*/participants/*}:analyzeC"
-          + "ontent:\001*Z`\"[/v2beta1/{participant=proje"
-          + "cts/*/locations/*/conversations/*/partic"
-          + "ipants/*}:analyzeContent:\001*\332A\026participan"
-          + "t,text_input\332A\027participant,event_input\022\335"
-          + "\002\n\017SuggestArticles\0227.google.cloud.dialog"
-          + "flow.v2beta1.SuggestArticlesRequest\0328.go"
-          + "ogle.cloud.dialogflow.v2beta1.SuggestArt"
-          + "iclesResponse\"\326\001\202\323\344\223\002\306\001\"W/v2beta1/{paren"
-          + "t=projects/*/conversations/*/participant"
-          + "s/*}/suggestions:suggestArticles:\001*Zh\"c/"
-          + "v2beta1/{parent=projects/*/locations/*/c"
-          + "onversations/*/participants/*}/suggestio"
-          + "ns:suggestArticles:\001*\332A\006parent\022\347\002\n\021Sugge"
-          + "stFaqAnswers\0229.google.cloud.dialogflow.v"
-          + "2beta1.SuggestFaqAnswersRequest\032:.google"
-          + ".cloud.dialogflow.v2beta1.SuggestFaqAnsw"
-          + "ersResponse\"\332\001\202\323\344\223\002\312\001\"Y/v2beta1/{parent="
-          + "projects/*/conversations/*/participants/"
-          + "*}/suggestions:suggestFaqAnswers:\001*Zj\"e/"
-          + "v2beta1/{parent=projects/*/locations/*/c"
-          + "onversations/*/participants/*}/suggestio"
-          + "ns:suggestFaqAnswers:\001*\332A\006parent\022\361\002\n\023Sug"
-          + "gestSmartReplies\022;.google.cloud.dialogfl"
-          + "ow.v2beta1.SuggestSmartRepliesRequest\032<."
-          + "google.cloud.dialogflow.v2beta1.SuggestS"
-          + "martRepliesResponse\"\336\001\202\323\344\223\002\316\001\"[/v2beta1/"
-          + "{parent=projects/*/conversations/*/parti"
-          + "cipants/*}/suggestions:suggestSmartRepli"
-          + "es:\001*Zl\"g/v2beta1/{parent=projects/*/loc"
-          + "ations/*/conversations/*/participants/*}"
-          + "/suggestions:suggestSmartReplies:\001*\332A\006pa"
-          + "rent\022\330\001\n\017ListSuggestions\0227.google.cloud."
-          + "dialogflow.v2beta1.ListSuggestionsReques"
-          + "t\0328.google.cloud.dialogflow.v2beta1.List"
-          + "SuggestionsResponse\"R\210\002\001\202\323\344\223\002I\022G/v2beta1"
-          + "/{parent=projects/*/conversations/*/part"
-          + "icipants/*}/suggestions\022\351\001\n\021CompileSugge"
-          + "stion\0229.google.cloud.dialogflow.v2beta1."
-          + "CompileSuggestionRequest\032:.google.cloud."
-          + "dialogflow.v2beta1.CompileSuggestionResp"
-          + "onse\"]\210\002\001\202\323\344\223\002T\"O/v2beta1/{parent=projec"
-          + "ts/*/conversations/*/participants/*}/sug"
-          + "gestions:compile:\001*\032x\312A\031dialogflow.googl"
-          + "eapis.com\322AYhttps://www.googleapis.com/a"
-          + "uth/cloud-platform,https://www.googleapi"
-          + "s.com/auth/dialogflowB\256\001\n#com.google.clo"
-          + "ud.dialogflow.v2beta1B\020ParticipantProtoP"
-          + "\001ZIgoogle.golang.org/genproto/googleapis"
-          + "/cloud/dialogflow/v2beta1;dialogflow\370\001\001\242"
-          + "\002\002DF\252\002\037Google.Cloud.Dialogflow.V2beta1b\006"
-          + "proto3"
+          + "8\001\032\360\001\n\tFaqAnswer\022\016\n\006answer\030\001 \001(\t\022\022\n\nconf"
+          + "idence\030\002 \001(\002\022\020\n\010question\030\003 \001(\t\022\016\n\006source"
+          + "\030\004 \001(\t\022U\n\010metadata\030\005 \003(\0132C.google.cloud."
+          + "dialogflow.v2beta1.Suggestion.FaqAnswer."
+          + "MetadataEntry\022\025\n\ranswer_record\030\006 \001(\t\032/\n\r"
+          + "MetadataEntry\022\013\n\003key\030\001 \001(\t\022\r\n\005value\030\002 \001("
+          + "\t:\0028\001:\002\030\001\"c\n\026ListSuggestionsRequest\022\016\n\006p"
+          + "arent\030\001 \001(\t\022\021\n\tpage_size\030\002 \001(\005\022\022\n\npage_t"
+          + "oken\030\003 \001(\t\022\016\n\006filter\030\004 \001(\t:\002\030\001\"x\n\027ListSu"
+          + "ggestionsResponse\022@\n\013suggestions\030\001 \003(\0132+"
+          + ".google.cloud.dialogflow.v2beta1.Suggest"
+          + "ion\022\027\n\017next_page_token\030\002 \001(\t:\002\030\001\"\\\n\030Comp"
+          + "ileSuggestionRequest\022\016\n\006parent\030\001 \001(\t\022\026\n\016"
+          + "latest_message\030\002 \001(\t\022\024\n\014context_size\030\003 \001"
+          + "(\005:\002\030\001\"\216\001\n\031CompileSuggestionResponse\022?\n\n"
+          + "suggestion\030\001 \001(\0132+.google.cloud.dialogfl"
+          + "ow.v2beta1.Suggestion\022\026\n\016latest_message\030"
+          + "\002 \001(\t\022\024\n\014context_size\030\003 \001(\005:\002\030\001\"\263\003\n\017Resp"
+          + "onseMessage\022E\n\004text\030\001 \001(\01325.google.cloud"
+          + ".dialogflow.v2beta1.ResponseMessage.Text"
+          + "H\000\022*\n\007payload\030\002 \001(\0132\027.google.protobuf.St"
+          + "ructH\000\022_\n\022live_agent_handoff\030\003 \001(\0132A.goo"
+          + "gle.cloud.dialogflow.v2beta1.ResponseMes"
+          + "sage.LiveAgentHandoffH\000\022Z\n\017end_interacti"
+          + "on\030\004 \001(\0132?.google.cloud.dialogflow.v2bet"
+          + "a1.ResponseMessage.EndInteractionH\000\032\024\n\004T"
+          + "ext\022\014\n\004text\030\001 \003(\t\032=\n\020LiveAgentHandoff\022)\n"
+          + "\010metadata\030\001 \001(\0132\027.google.protobuf.Struct"
+          + "\032\020\n\016EndInteractionB\t\n\007message2\310\031\n\014Partic"
+          + "ipants\022\271\002\n\021CreateParticipant\0229.google.cl"
+          + "oud.dialogflow.v2beta1.CreateParticipant"
+          + "Request\032,.google.cloud.dialogflow.v2beta"
+          + "1.Participant\"\272\001\202\323\344\223\002\236\001\"9/v2beta1/{paren"
+          + "t=projects/*/conversations/*}/participan"
+          + "ts:\013participantZT\"E/v2beta1/{parent=proj"
+          + "ects/*/locations/*/conversations/*}/part"
+          + "icipants:\013participant\332A\022parent,participa"
+          + "nt\022\213\002\n\016GetParticipant\0226.google.cloud.dia"
+          + "logflow.v2beta1.GetParticipantRequest\032,."
+          + "google.cloud.dialogflow.v2beta1.Particip"
+          + "ant\"\222\001\202\323\344\223\002\204\001\0229/v2beta1/{name=projects/*"
+          + "/conversations/*/participants/*}ZG\022E/v2b"
+          + "eta1/{name=projects/*/locations/*/conver"
+          + "sations/*/participants/*}\332A\004name\022\236\002\n\020Lis"
+          + "tParticipants\0228.google.cloud.dialogflow."
+          + "v2beta1.ListParticipantsRequest\0329.google"
+          + ".cloud.dialogflow.v2beta1.ListParticipan"
+          + "tsResponse\"\224\001\202\323\344\223\002\204\001\0229/v2beta1/{parent=p"
+          + "rojects/*/conversations/*}/participantsZ"
+          + "G\022E/v2beta1/{parent=projects/*/locations"
+          + "/*/conversations/*}/participants\332A\006paren"
+          + "t\022\326\002\n\021UpdateParticipant\0229.google.cloud.d"
+          + "ialogflow.v2beta1.UpdateParticipantReque"
+          + "st\032,.google.cloud.dialogflow.v2beta1.Par"
+          + "ticipant\"\327\001\202\323\344\223\002\266\0012E/v2beta1/{participan"
+          + "t.name=projects/*/conversations/*/partic"
+          + "ipants/*}:\013participantZ`2Q/v2beta1/{part"
+          + "icipant.name=projects/*/locations/*/conv"
+          + "ersations/*/participants/*}:\013participant"
+          + "\332A\027participant,update_mask\022\364\002\n\016AnalyzeCo"
+          + "ntent\0226.google.cloud.dialogflow.v2beta1."
+          + "AnalyzeContentRequest\0327.google.cloud.dia"
+          + "logflow.v2beta1.AnalyzeContentResponse\"\360"
+          + "\001\202\323\344\223\002\266\001\"O/v2beta1/{participant=projects"
+          + "/*/conversations/*/participants/*}:analy"
+          + "zeContent:\001*Z`\"[/v2beta1/{participant=pr"
+          + "ojects/*/locations/*/conversations/*/par"
+          + "ticipants/*}:analyzeContent:\001*\332A\026partici"
+          + "pant,text_input\332A\027participant,event_inpu"
+          + "t\022\335\002\n\017SuggestArticles\0227.google.cloud.dia"
+          + "logflow.v2beta1.SuggestArticlesRequest\0328"
+          + ".google.cloud.dialogflow.v2beta1.Suggest"
+          + "ArticlesResponse\"\326\001\202\323\344\223\002\306\001\"W/v2beta1/{pa"
+          + "rent=projects/*/conversations/*/particip"
+          + "ants/*}/suggestions:suggestArticles:\001*Zh"
+          + "\"c/v2beta1/{parent=projects/*/locations/"
+          + "*/conversations/*/participants/*}/sugges"
+          + "tions:suggestArticles:\001*\332A\006parent\022\347\002\n\021Su"
+          + "ggestFaqAnswers\0229.google.cloud.dialogflo"
+          + "w.v2beta1.SuggestFaqAnswersRequest\032:.goo"
+          + "gle.cloud.dialogflow.v2beta1.SuggestFaqA"
+          + "nswersResponse\"\332\001\202\323\344\223\002\312\001\"Y/v2beta1/{pare"
+          + "nt=projects/*/conversations/*/participan"
+          + "ts/*}/suggestions:suggestFaqAnswers:\001*Zj"
+          + "\"e/v2beta1/{parent=projects/*/locations/"
+          + "*/conversations/*/participants/*}/sugges"
+          + "tions:suggestFaqAnswers:\001*\332A\006parent\022\361\002\n\023"
+          + "SuggestSmartReplies\022;.google.cloud.dialo"
+          + "gflow.v2beta1.SuggestSmartRepliesRequest"
+          + "\032<.google.cloud.dialogflow.v2beta1.Sugge"
+          + "stSmartRepliesResponse\"\336\001\202\323\344\223\002\316\001\"[/v2bet"
+          + "a1/{parent=projects/*/conversations/*/pa"
+          + "rticipants/*}/suggestions:suggestSmartRe"
+          + "plies:\001*Zl\"g/v2beta1/{parent=projects/*/"
+          + "locations/*/conversations/*/participants"
+          + "/*}/suggestions:suggestSmartReplies:\001*\332A"
+          + "\006parent\022\330\001\n\017ListSuggestions\0227.google.clo"
+          + "ud.dialogflow.v2beta1.ListSuggestionsReq"
+          + "uest\0328.google.cloud.dialogflow.v2beta1.L"
+          + "istSuggestionsResponse\"R\210\002\001\202\323\344\223\002I\022G/v2be"
+          + "ta1/{parent=projects/*/conversations/*/p"
+          + "articipants/*}/suggestions\022\351\001\n\021CompileSu"
+          + "ggestion\0229.google.cloud.dialogflow.v2bet"
+          + "a1.CompileSuggestionRequest\032:.google.clo"
+          + "ud.dialogflow.v2beta1.CompileSuggestionR"
+          + "esponse\"]\210\002\001\202\323\344\223\002T\"O/v2beta1/{parent=pro"
+          + "jects/*/conversations/*/participants/*}/"
+          + "suggestions:compile:\001*\032x\312A\031dialogflow.go"
+          + "ogleapis.com\322AYhttps://www.googleapis.co"
+          + "m/auth/cloud-platform,https://www.google"
+          + "apis.com/auth/dialogflowB\256\001\n#com.google."
+          + "cloud.dialogflow.v2beta1B\020ParticipantPro"
+          + "toP\001ZIgoogle.golang.org/genproto/googlea"
+          + "pis/cloud/dialogflow/v2beta1;dialogflow\370"
+          + "\001\001\242\002\002DF\252\002\037Google.Cloud.Dialogflow.V2beta"
+          + "1b\006proto3"
     };
     descriptor =
         com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
@@ -486,6 +487,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               com.google.api.FieldBehaviorProto.getDescriptor(),
               com.google.api.ResourceProto.getDescriptor(),
               com.google.cloud.dialogflow.v2beta1.AudioConfigProto.getDescriptor(),
+              com.google.cloud.dialogflow.v2beta1.GcsProto.getDescriptor(),
               com.google.cloud.dialogflow.v2beta1.SessionProto.getDescriptor(),
               com.google.protobuf.AnyProto.getDescriptor(),
               com.google.protobuf.DurationProto.getDescriptor(),
@@ -877,6 +879,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
     com.google.api.FieldBehaviorProto.getDescriptor();
     com.google.api.ResourceProto.getDescriptor();
     com.google.cloud.dialogflow.v2beta1.AudioConfigProto.getDescriptor();
+    com.google.cloud.dialogflow.v2beta1.GcsProto.getDescriptor();
     com.google.cloud.dialogflow.v2beta1.SessionProto.getDescriptor();
     com.google.protobuf.AnyProto.getDescriptor();
     com.google.protobuf.DurationProto.getDescriptor();
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SessionEntityTypeName.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SessionEntityTypeName.java
index fac4a9a7a..987e959dc 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SessionEntityTypeName.java
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SessionEntityTypeName.java
@@ -40,6 +40,9 @@ public class SessionEntityTypeName implements ResourceName {
   private static final PathTemplate PROJECT_ENVIRONMENT_USER_SESSION_ENTITY_TYPE =
       PathTemplate.createWithoutUrlEncoding(
           "projects/{project}/agent/environments/{environment}/users/{user}/sessions/{session}/entityTypes/{entity_type}");
+  private static final PathTemplate PROJECT_LOCATION_ENVIRONMENT_USER_SESSION_ENTITY_TYPE =
+      PathTemplate.createWithoutUrlEncoding(
+          "projects/{project}/locations/{location}/agent/environments/{environment}/users/{user}/sessions/{session}/entityTypes/{entity_type}");
   private volatile Map fieldValuesMap;
   private PathTemplate pathTemplate;
   private String fixedValue;
@@ -90,6 +93,16 @@ private SessionEntityTypeName(ProjectEnvironmentUserSessionEntityTypeBuilder bui
     pathTemplate = PROJECT_ENVIRONMENT_USER_SESSION_ENTITY_TYPE;
   }
 
+  private SessionEntityTypeName(ProjectLocationEnvironmentUserSessionEntityTypeBuilder builder) {
+    project = Preconditions.checkNotNull(builder.getProject());
+    location = Preconditions.checkNotNull(builder.getLocation());
+    environment = Preconditions.checkNotNull(builder.getEnvironment());
+    user = Preconditions.checkNotNull(builder.getUser());
+    session = Preconditions.checkNotNull(builder.getSession());
+    entityType = Preconditions.checkNotNull(builder.getEntityType());
+    pathTemplate = PROJECT_LOCATION_ENVIRONMENT_USER_SESSION_ENTITY_TYPE;
+  }
+
   public String getProject() {
     return project;
   }
@@ -135,6 +148,12 @@ public static Builder newProjectSessionEntityTypeBuilder() {
     return new ProjectEnvironmentUserSessionEntityTypeBuilder();
   }
 
+  @BetaApi("The per-pattern Builders are not stable yet and may be changed in the future.")
+  public static ProjectLocationEnvironmentUserSessionEntityTypeBuilder
+      newProjectLocationEnvironmentUserSessionEntityTypeBuilder() {
+    return new ProjectLocationEnvironmentUserSessionEntityTypeBuilder();
+  }
+
   public Builder toBuilder() {
     return new Builder(this);
   }
@@ -172,6 +191,24 @@ public static SessionEntityTypeName ofProjectEnvironmentUserSessionEntityTypeNam
         .build();
   }
 
+  @BetaApi("The static create methods are not stable yet and may be changed in the future.")
+  public static SessionEntityTypeName ofProjectLocationEnvironmentUserSessionEntityTypeName(
+      String project,
+      String location,
+      String environment,
+      String user,
+      String session,
+      String entityType) {
+    return newProjectLocationEnvironmentUserSessionEntityTypeBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setEnvironment(environment)
+        .setUser(user)
+        .setSession(session)
+        .setEntityType(entityType)
+        .build();
+  }
+
   public static String format(String project, String session, String entityType) {
     return newBuilder()
         .setProject(project)
@@ -217,6 +254,25 @@ public static String formatProjectEnvironmentUserSessionEntityTypeName(
         .toString();
   }
 
+  @BetaApi("The static format methods are not stable yet and may be changed in the future.")
+  public static String formatProjectLocationEnvironmentUserSessionEntityTypeName(
+      String project,
+      String location,
+      String environment,
+      String user,
+      String session,
+      String entityType) {
+    return newProjectLocationEnvironmentUserSessionEntityTypeBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setEnvironment(environment)
+        .setUser(user)
+        .setSession(session)
+        .setEntityType(entityType)
+        .build()
+        .toString();
+  }
+
   public static SessionEntityTypeName parse(String formattedString) {
     if (formattedString.isEmpty()) {
       return null;
@@ -241,6 +297,16 @@ public static SessionEntityTypeName parse(String formattedString) {
           matchMap.get("user"),
           matchMap.get("session"),
           matchMap.get("entity_type"));
+    } else if (PROJECT_LOCATION_ENVIRONMENT_USER_SESSION_ENTITY_TYPE.matches(formattedString)) {
+      Map matchMap =
+          PROJECT_LOCATION_ENVIRONMENT_USER_SESSION_ENTITY_TYPE.match(formattedString);
+      return ofProjectLocationEnvironmentUserSessionEntityTypeName(
+          matchMap.get("project"),
+          matchMap.get("location"),
+          matchMap.get("environment"),
+          matchMap.get("user"),
+          matchMap.get("session"),
+          matchMap.get("entity_type"));
     }
     throw new ValidationException(
         "SessionEntityTypeName.parse: formattedString not in valid format");
@@ -269,7 +335,8 @@ public static List toStringList(List values) {
   public static boolean isParsableFrom(String formattedString) {
     return PROJECT_SESSION_ENTITY_TYPE.matches(formattedString)
         || PROJECT_LOCATION_SESSION_ENTITY_TYPE.matches(formattedString)
-        || PROJECT_ENVIRONMENT_USER_SESSION_ENTITY_TYPE.matches(formattedString);
+        || PROJECT_ENVIRONMENT_USER_SESSION_ENTITY_TYPE.matches(formattedString)
+        || PROJECT_LOCATION_ENVIRONMENT_USER_SESSION_ENTITY_TYPE.matches(formattedString);
   }
 
   @Override
@@ -515,4 +582,79 @@ public SessionEntityTypeName build() {
       return new SessionEntityTypeName(this);
     }
   }
+
+  /**
+   * Builder for
+   * projects/{project}/locations/{location}/agent/environments/{environment}/users/{user}/sessions/{session}/entityTypes/{entity_type}.
+   */
+  @BetaApi("The per-pattern Builders are not stable yet and may be changed in the future.")
+  public static class ProjectLocationEnvironmentUserSessionEntityTypeBuilder {
+    private String project;
+    private String location;
+    private String environment;
+    private String user;
+    private String session;
+    private String entityType;
+
+    protected ProjectLocationEnvironmentUserSessionEntityTypeBuilder() {}
+
+    public String getProject() {
+      return project;
+    }
+
+    public String getLocation() {
+      return location;
+    }
+
+    public String getEnvironment() {
+      return environment;
+    }
+
+    public String getUser() {
+      return user;
+    }
+
+    public String getSession() {
+      return session;
+    }
+
+    public String getEntityType() {
+      return entityType;
+    }
+
+    public ProjectLocationEnvironmentUserSessionEntityTypeBuilder setProject(String project) {
+      this.project = project;
+      return this;
+    }
+
+    public ProjectLocationEnvironmentUserSessionEntityTypeBuilder setLocation(String location) {
+      this.location = location;
+      return this;
+    }
+
+    public ProjectLocationEnvironmentUserSessionEntityTypeBuilder setEnvironment(
+        String environment) {
+      this.environment = environment;
+      return this;
+    }
+
+    public ProjectLocationEnvironmentUserSessionEntityTypeBuilder setUser(String user) {
+      this.user = user;
+      return this;
+    }
+
+    public ProjectLocationEnvironmentUserSessionEntityTypeBuilder setSession(String session) {
+      this.session = session;
+      return this;
+    }
+
+    public ProjectLocationEnvironmentUserSessionEntityTypeBuilder setEntityType(String entityType) {
+      this.entityType = entityType;
+      return this;
+    }
+
+    public SessionEntityTypeName build() {
+      return new SessionEntityTypeName(this);
+    }
+  }
 }
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SessionEntityTypeProto.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SessionEntityTypeProto.java
index ada4203e6..5260a2613 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SessionEntityTypeProto.java
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SessionEntityTypeProto.java
@@ -72,7 +72,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "e.proto\0321google/cloud/dialogflow/v2beta1"
           + "/entity_type.proto\032\033google/protobuf/empt"
           + "y.proto\032 google/protobuf/field_mask.prot"
-          + "o\"\227\005\n\021SessionEntityType\022\014\n\004name\030\001 \001(\t\022c\n"
+          + "o\"\234\006\n\021SessionEntityType\022\014\n\004name\030\001 \001(\t\022c\n"
           + "\024entity_override_mode\030\002 \001(\0162E.google.clo"
           + "ud.dialogflow.v2beta1.SessionEntityType."
           + "EntityOverrideMode\022D\n\010entities\030\003 \003(\01322.g"
@@ -80,7 +80,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "e.Entity\"\202\001\n\022EntityOverrideMode\022$\n ENTIT"
           + "Y_OVERRIDE_MODE_UNSPECIFIED\020\000\022!\n\035ENTITY_"
           + "OVERRIDE_MODE_OVERRIDE\020\001\022#\n\037ENTITY_OVERR"
-          + "IDE_MODE_SUPPLEMENT\020\002:\303\002\352A\277\002\n+dialogflow"
+          + "IDE_MODE_SUPPLEMENT\020\002:\310\003\352A\304\003\n+dialogflow"
           + ".googleapis.com/SessionEntityType\022Eproje"
           + "cts/{project}/agent/sessions/{session}/e"
           + "ntityTypes/{entity_type}\022Zprojects/{proj"
@@ -88,103 +88,107 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "/{session}/entityTypes/{entity_type}\022mpr"
           + "ojects/{project}/agent/environments/{env"
           + "ironment}/users/{user}/sessions/{session"
-          + "}/entityTypes/{entity_type}\"\213\001\n\035ListSess"
-          + "ionEntityTypesRequest\022C\n\006parent\030\001 \001(\tB3\340"
-          + "A\002\372A-\022+dialogflow.googleapis.com/Session"
-          + "EntityType\022\021\n\tpage_size\030\002 \001(\005\022\022\n\npage_to"
-          + "ken\030\003 \001(\t\"\213\001\n\036ListSessionEntityTypesResp"
-          + "onse\022P\n\024session_entity_types\030\001 \003(\01322.goo"
+          + "}/entityTypes/{entity_type}\022\202\001projects/{"
+          + "project}/locations/{location}/agent/envi"
+          + "ronments/{environment}/users/{user}/sess"
+          + "ions/{session}/entityTypes/{entity_type}"
+          + "\"\213\001\n\035ListSessionEntityTypesRequest\022C\n\006pa"
+          + "rent\030\001 \001(\tB3\340A\002\372A-\022+dialogflow.googleapi"
+          + "s.com/SessionEntityType\022\021\n\tpage_size\030\002 \001"
+          + "(\005\022\022\n\npage_token\030\003 \001(\t\"\213\001\n\036ListSessionEn"
+          + "tityTypesResponse\022P\n\024session_entity_type"
+          + "s\030\001 \003(\01322.google.cloud.dialogflow.v2beta"
+          + "1.SessionEntityType\022\027\n\017next_page_token\030\002"
+          + " \001(\t\"`\n\033GetSessionEntityTypeRequest\022A\n\004n"
+          + "ame\030\001 \001(\tB3\340A\002\372A-\n+dialogflow.googleapis"
+          + ".com/SessionEntityType\"\273\001\n\036CreateSession"
+          + "EntityTypeRequest\022C\n\006parent\030\001 \001(\tB3\340A\002\372A"
+          + "-\022+dialogflow.googleapis.com/SessionEnti"
+          + "tyType\022T\n\023session_entity_type\030\002 \001(\01322.go"
+          + "ogle.cloud.dialogflow.v2beta1.SessionEnt"
+          + "ityTypeB\003\340A\002\"\247\001\n\036UpdateSessionEntityType"
+          + "Request\022T\n\023session_entity_type\030\001 \001(\01322.g"
+          + "oogle.cloud.dialogflow.v2beta1.SessionEn"
+          + "tityTypeB\003\340A\002\022/\n\013update_mask\030\002 \001(\0132\032.goo"
+          + "gle.protobuf.FieldMask\"c\n\036DeleteSessionE"
+          + "ntityTypeRequest\022A\n\004name\030\001 \001(\tB3\340A\002\372A-\n+"
+          + "dialogflow.googleapis.com/SessionEntityT"
+          + "ype2\373\025\n\022SessionEntityTypes\022\344\003\n\026ListSessi"
+          + "onEntityTypes\022>.google.cloud.dialogflow."
+          + "v2beta1.ListSessionEntityTypesRequest\032?."
+          + "google.cloud.dialogflow.v2beta1.ListSess"
+          + "ionEntityTypesResponse\"\310\002\202\323\344\223\002\270\002\0229/v2bet"
+          + "a1/{parent=projects/*/agent/sessions/*}/"
+          + "entityTypesZR\022P/v2beta1/{parent=projects"
+          + "/*/agent/environments/*/users/*/sessions"
+          + "/*}/entityTypesZG\022E/v2beta1/{parent=proj"
+          + "ects/*/locations/*/agent/sessions/*}/ent"
+          + "ityTypesZ^\022\\/v2beta1/{parent=projects/*/"
+          + "locations/*/agent/environments/*/users/*"
+          + "/sessions/*}/entityTypes\332A\006parent\022\321\003\n\024Ge"
+          + "tSessionEntityType\022<.google.cloud.dialog"
+          + "flow.v2beta1.GetSessionEntityTypeRequest"
+          + "\0322.google.cloud.dialogflow.v2beta1.Sessi"
+          + "onEntityType\"\306\002\202\323\344\223\002\270\002\0229/v2beta1/{name=p"
+          + "rojects/*/agent/sessions/*/entityTypes/*"
+          + "}ZR\022P/v2beta1/{name=projects/*/agent/env"
+          + "ironments/*/users/*/sessions/*/entityTyp"
+          + "es/*}ZG\022E/v2beta1/{name=projects/*/locat"
+          + "ions/*/agent/sessions/*/entityTypes/*}Z^"
+          + "\022\\/v2beta1/{name=projects/*/locations/*/"
+          + "agent/environments/*/users/*/sessions/*/"
+          + "entityTypes/*}\332A\004name\022\301\004\n\027CreateSessionE"
+          + "ntityType\022?.google.cloud.dialogflow.v2be"
+          + "ta1.CreateSessionEntityTypeRequest\0322.goo"
           + "gle.cloud.dialogflow.v2beta1.SessionEnti"
-          + "tyType\022\027\n\017next_page_token\030\002 \001(\t\"`\n\033GetSe"
-          + "ssionEntityTypeRequest\022A\n\004name\030\001 \001(\tB3\340A"
-          + "\002\372A-\n+dialogflow.googleapis.com/SessionE"
-          + "ntityType\"\273\001\n\036CreateSessionEntityTypeReq"
-          + "uest\022C\n\006parent\030\001 \001(\tB3\340A\002\372A-\022+dialogflow"
-          + ".googleapis.com/SessionEntityType\022T\n\023ses"
-          + "sion_entity_type\030\002 \001(\01322.google.cloud.di"
-          + "alogflow.v2beta1.SessionEntityTypeB\003\340A\002\""
-          + "\247\001\n\036UpdateSessionEntityTypeRequest\022T\n\023se"
-          + "ssion_entity_type\030\001 \001(\01322.google.cloud.d"
-          + "ialogflow.v2beta1.SessionEntityTypeB\003\340A\002"
-          + "\022/\n\013update_mask\030\002 \001(\0132\032.google.protobuf."
-          + "FieldMask\"c\n\036DeleteSessionEntityTypeRequ"
-          + "est\022A\n\004name\030\001 \001(\tB3\340A\002\372A-\n+dialogflow.go"
-          + "ogleapis.com/SessionEntityType2\373\025\n\022Sessi"
-          + "onEntityTypes\022\344\003\n\026ListSessionEntityTypes"
-          + "\022>.google.cloud.dialogflow.v2beta1.ListS"
-          + "essionEntityTypesRequest\032?.google.cloud."
-          + "dialogflow.v2beta1.ListSessionEntityType"
-          + "sResponse\"\310\002\202\323\344\223\002\270\002\0229/v2beta1/{parent=pr"
-          + "ojects/*/agent/sessions/*}/entityTypesZR"
-          + "\022P/v2beta1/{parent=projects/*/agent/envi"
-          + "ronments/*/users/*/sessions/*}/entityTyp"
-          + "esZG\022E/v2beta1/{parent=projects/*/locati"
-          + "ons/*/agent/sessions/*}/entityTypesZ^\022\\/"
-          + "v2beta1/{parent=projects/*/locations/*/a"
-          + "gent/environments/*/users/*/sessions/*}/"
-          + "entityTypes\332A\006parent\022\321\003\n\024GetSessionEntit"
-          + "yType\022<.google.cloud.dialogflow.v2beta1."
-          + "GetSessionEntityTypeRequest\0322.google.clo"
-          + "ud.dialogflow.v2beta1.SessionEntityType\""
-          + "\306\002\202\323\344\223\002\270\002\0229/v2beta1/{name=projects/*/age"
-          + "nt/sessions/*/entityTypes/*}ZR\022P/v2beta1"
-          + "/{name=projects/*/agent/environments/*/u"
-          + "sers/*/sessions/*/entityTypes/*}ZG\022E/v2b"
+          + "tyType\"\260\003\202\323\344\223\002\214\003\"9/v2beta1/{parent=proje"
+          + "cts/*/agent/sessions/*}/entityTypes:\023ses"
+          + "sion_entity_typeZg\"P/v2beta1/{parent=pro"
+          + "jects/*/agent/environments/*/users/*/ses"
+          + "sions/*}/entityTypes:\023session_entity_typ"
+          + "eZ\\\"E/v2beta1/{parent=projects/*/locatio"
+          + "ns/*/agent/sessions/*}/entityTypes:\023sess"
+          + "ion_entity_typeZs\"\\/v2beta1/{parent=proj"
+          + "ects/*/locations/*/agent/environments/*/"
+          + "users/*/sessions/*}/entityTypes:\023session"
+          + "_entity_type\332A\032parent,session_entity_typ"
+          + "e\022\255\005\n\027UpdateSessionEntityType\022?.google.c"
+          + "loud.dialogflow.v2beta1.UpdateSessionEnt"
+          + "ityTypeRequest\0322.google.cloud.dialogflow"
+          + ".v2beta1.SessionEntityType\"\234\004\202\323\344\223\002\335\0032M/v"
+          + "2beta1/{session_entity_type.name=project"
+          + "s/*/agent/sessions/*/entityTypes/*}:\023ses"
+          + "sion_entity_typeZ{2d/v2beta1/{session_en"
+          + "tity_type.name=projects/*/agent/environm"
+          + "ents/*/users/*/sessions/*/entityTypes/*}"
+          + ":\023session_entity_typeZp2Y/v2beta1/{sessi"
+          + "on_entity_type.name=projects/*/locations"
+          + "/*/agent/sessions/*/entityTypes/*}:\023sess"
+          + "ion_entity_typeZ\207\0012p/v2beta1/{session_en"
+          + "tity_type.name=projects/*/locations/*/ag"
+          + "ent/environments/*/users/*/sessions/*/en"
+          + "tityTypes/*}:\023session_entity_type\332A\023sess"
+          + "ion_entity_type\332A\037session_entity_type,up"
+          + "date_mask\022\273\003\n\027DeleteSessionEntityType\022?."
+          + "google.cloud.dialogflow.v2beta1.DeleteSe"
+          + "ssionEntityTypeRequest\032\026.google.protobuf"
+          + ".Empty\"\306\002\202\323\344\223\002\270\002*9/v2beta1/{name=project"
+          + "s/*/agent/sessions/*/entityTypes/*}ZR*P/"
+          + "v2beta1/{name=projects/*/agent/environme"
+          + "nts/*/users/*/sessions/*/entityTypes/*}Z"
+          + "G*E/v2beta1/{name=projects/*/locations/*"
+          + "/agent/sessions/*/entityTypes/*}Z^*\\/v2b"
           + "eta1/{name=projects/*/locations/*/agent/"
-          + "sessions/*/entityTypes/*}Z^\022\\/v2beta1/{n"
-          + "ame=projects/*/locations/*/agent/environ"
-          + "ments/*/users/*/sessions/*/entityTypes/*"
-          + "}\332A\004name\022\301\004\n\027CreateSessionEntityType\022?.g"
-          + "oogle.cloud.dialogflow.v2beta1.CreateSes"
-          + "sionEntityTypeRequest\0322.google.cloud.dia"
-          + "logflow.v2beta1.SessionEntityType\"\260\003\202\323\344\223"
-          + "\002\214\003\"9/v2beta1/{parent=projects/*/agent/s"
-          + "essions/*}/entityTypes:\023session_entity_t"
-          + "ypeZg\"P/v2beta1/{parent=projects/*/agent"
-          + "/environments/*/users/*/sessions/*}/enti"
-          + "tyTypes:\023session_entity_typeZ\\\"E/v2beta1"
-          + "/{parent=projects/*/locations/*/agent/se"
-          + "ssions/*}/entityTypes:\023session_entity_ty"
-          + "peZs\"\\/v2beta1/{parent=projects/*/locati"
-          + "ons/*/agent/environments/*/users/*/sessi"
-          + "ons/*}/entityTypes:\023session_entity_type\332"
-          + "A\032parent,session_entity_type\022\255\005\n\027UpdateS"
-          + "essionEntityType\022?.google.cloud.dialogfl"
-          + "ow.v2beta1.UpdateSessionEntityTypeReques"
-          + "t\0322.google.cloud.dialogflow.v2beta1.Sess"
-          + "ionEntityType\"\234\004\202\323\344\223\002\335\0032M/v2beta1/{sessi"
-          + "on_entity_type.name=projects/*/agent/ses"
-          + "sions/*/entityTypes/*}:\023session_entity_t"
-          + "ypeZ{2d/v2beta1/{session_entity_type.nam"
-          + "e=projects/*/agent/environments/*/users/"
-          + "*/sessions/*/entityTypes/*}:\023session_ent"
-          + "ity_typeZp2Y/v2beta1/{session_entity_typ"
-          + "e.name=projects/*/locations/*/agent/sess"
-          + "ions/*/entityTypes/*}:\023session_entity_ty"
-          + "peZ\207\0012p/v2beta1/{session_entity_type.nam"
-          + "e=projects/*/locations/*/agent/environme"
-          + "nts/*/users/*/sessions/*/entityTypes/*}:"
-          + "\023session_entity_type\332A\023session_entity_ty"
-          + "pe\332A\037session_entity_type,update_mask\022\273\003\n"
-          + "\027DeleteSessionEntityType\022?.google.cloud."
-          + "dialogflow.v2beta1.DeleteSessionEntityTy"
-          + "peRequest\032\026.google.protobuf.Empty\"\306\002\202\323\344\223"
-          + "\002\270\002*9/v2beta1/{name=projects/*/agent/ses"
-          + "sions/*/entityTypes/*}ZR*P/v2beta1/{name"
-          + "=projects/*/agent/environments/*/users/*"
-          + "/sessions/*/entityTypes/*}ZG*E/v2beta1/{"
-          + "name=projects/*/locations/*/agent/sessio"
-          + "ns/*/entityTypes/*}Z^*\\/v2beta1/{name=pr"
-          + "ojects/*/locations/*/agent/environments/"
-          + "*/users/*/sessions/*/entityTypes/*}\332A\004na"
-          + "me\032x\312A\031dialogflow.googleapis.com\322AYhttps"
-          + "://www.googleapis.com/auth/cloud-platfor"
-          + "m,https://www.googleapis.com/auth/dialog"
-          + "flowB\264\001\n#com.google.cloud.dialogflow.v2b"
-          + "eta1B\026SessionEntityTypeProtoP\001ZIgoogle.g"
-          + "olang.org/genproto/googleapis/cloud/dial"
-          + "ogflow/v2beta1;dialogflow\370\001\001\242\002\002DF\252\002\037Goog"
-          + "le.Cloud.Dialogflow.V2beta1b\006proto3"
+          + "environments/*/users/*/sessions/*/entity"
+          + "Types/*}\332A\004name\032x\312A\031dialogflow.googleapi"
+          + "s.com\322AYhttps://www.googleapis.com/auth/"
+          + "cloud-platform,https://www.googleapis.co"
+          + "m/auth/dialogflowB\264\001\n#com.google.cloud.d"
+          + "ialogflow.v2beta1B\026SessionEntityTypeProt"
+          + "oP\001ZIgoogle.golang.org/genproto/googleap"
+          + "is/cloud/dialogflow/v2beta1;dialogflow\370\001"
+          + "\001\242\002\002DF\252\002\037Google.Cloud.Dialogflow.V2beta1"
+          + "b\006proto3"
     };
     descriptor =
         com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SessionName.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SessionName.java
index a57a3a15b..610b0e098 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SessionName.java
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SessionName.java
@@ -39,6 +39,9 @@ public class SessionName implements ResourceName {
   private static final PathTemplate PROJECT_LOCATION_SESSION =
       PathTemplate.createWithoutUrlEncoding(
           "projects/{project}/locations/{location}/agent/sessions/{session}");
+  private static final PathTemplate PROJECT_LOCATION_ENVIRONMENT_USER_SESSION =
+      PathTemplate.createWithoutUrlEncoding(
+          "projects/{project}/locations/{location}/agent/environments/{environment}/users/{user}/sessions/{session}");
   private volatile Map fieldValuesMap;
   private PathTemplate pathTemplate;
   private String fixedValue;
@@ -84,6 +87,15 @@ private SessionName(ProjectLocationSessionBuilder builder) {
     pathTemplate = PROJECT_LOCATION_SESSION;
   }
 
+  private SessionName(ProjectLocationEnvironmentUserSessionBuilder builder) {
+    project = Preconditions.checkNotNull(builder.getProject());
+    location = Preconditions.checkNotNull(builder.getLocation());
+    environment = Preconditions.checkNotNull(builder.getEnvironment());
+    user = Preconditions.checkNotNull(builder.getUser());
+    session = Preconditions.checkNotNull(builder.getSession());
+    pathTemplate = PROJECT_LOCATION_ENVIRONMENT_USER_SESSION;
+  }
+
   public String getProject() {
     return project;
   }
@@ -123,6 +135,12 @@ public static ProjectLocationSessionBuilder newProjectLocationSessionBuilder() {
     return new ProjectLocationSessionBuilder();
   }
 
+  @BetaApi("The per-pattern Builders are not stable yet and may be changed in the future.")
+  public static ProjectLocationEnvironmentUserSessionBuilder
+      newProjectLocationEnvironmentUserSessionBuilder() {
+    return new ProjectLocationEnvironmentUserSessionBuilder();
+  }
+
   public Builder toBuilder() {
     return new Builder(this);
   }
@@ -157,6 +175,18 @@ public static SessionName ofProjectLocationSessionName(
         .build();
   }
 
+  @BetaApi("The static create methods are not stable yet and may be changed in the future.")
+  public static SessionName ofProjectLocationEnvironmentUserSessionName(
+      String project, String location, String environment, String user, String session) {
+    return newProjectLocationEnvironmentUserSessionBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setEnvironment(environment)
+        .setUser(user)
+        .setSession(session)
+        .build();
+  }
+
   public static String format(String project, String session) {
     return newBuilder().setProject(project).setSession(session).build().toString();
   }
@@ -189,6 +219,19 @@ public static String formatProjectLocationSessionName(
         .toString();
   }
 
+  @BetaApi("The static format methods are not stable yet and may be changed in the future.")
+  public static String formatProjectLocationEnvironmentUserSessionName(
+      String project, String location, String environment, String user, String session) {
+    return newProjectLocationEnvironmentUserSessionBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setEnvironment(environment)
+        .setUser(user)
+        .setSession(session)
+        .build()
+        .toString();
+  }
+
   public static SessionName parse(String formattedString) {
     if (formattedString.isEmpty()) {
       return null;
@@ -207,6 +250,15 @@ public static SessionName parse(String formattedString) {
       Map matchMap = PROJECT_LOCATION_SESSION.match(formattedString);
       return ofProjectLocationSessionName(
           matchMap.get("project"), matchMap.get("location"), matchMap.get("session"));
+    } else if (PROJECT_LOCATION_ENVIRONMENT_USER_SESSION.matches(formattedString)) {
+      Map matchMap =
+          PROJECT_LOCATION_ENVIRONMENT_USER_SESSION.match(formattedString);
+      return ofProjectLocationEnvironmentUserSessionName(
+          matchMap.get("project"),
+          matchMap.get("location"),
+          matchMap.get("environment"),
+          matchMap.get("user"),
+          matchMap.get("session"));
     }
     throw new ValidationException("SessionName.parse: formattedString not in valid format");
   }
@@ -234,7 +286,8 @@ public static List toStringList(List values) {
   public static boolean isParsableFrom(String formattedString) {
     return PROJECT_SESSION.matches(formattedString)
         || PROJECT_ENVIRONMENT_USER_SESSION.matches(formattedString)
-        || PROJECT_LOCATION_SESSION.matches(formattedString);
+        || PROJECT_LOCATION_SESSION.matches(formattedString)
+        || PROJECT_LOCATION_ENVIRONMENT_USER_SESSION.matches(formattedString);
   }
 
   @Override
@@ -440,4 +493,68 @@ public SessionName build() {
       return new SessionName(this);
     }
   }
+
+  /**
+   * Builder for
+   * projects/{project}/locations/{location}/agent/environments/{environment}/users/{user}/sessions/{session}.
+   */
+  @BetaApi("The per-pattern Builders are not stable yet and may be changed in the future.")
+  public static class ProjectLocationEnvironmentUserSessionBuilder {
+    private String project;
+    private String location;
+    private String environment;
+    private String user;
+    private String session;
+
+    protected ProjectLocationEnvironmentUserSessionBuilder() {}
+
+    public String getProject() {
+      return project;
+    }
+
+    public String getLocation() {
+      return location;
+    }
+
+    public String getEnvironment() {
+      return environment;
+    }
+
+    public String getUser() {
+      return user;
+    }
+
+    public String getSession() {
+      return session;
+    }
+
+    public ProjectLocationEnvironmentUserSessionBuilder setProject(String project) {
+      this.project = project;
+      return this;
+    }
+
+    public ProjectLocationEnvironmentUserSessionBuilder setLocation(String location) {
+      this.location = location;
+      return this;
+    }
+
+    public ProjectLocationEnvironmentUserSessionBuilder setEnvironment(String environment) {
+      this.environment = environment;
+      return this;
+    }
+
+    public ProjectLocationEnvironmentUserSessionBuilder setUser(String user) {
+      this.user = user;
+      return this;
+    }
+
+    public ProjectLocationEnvironmentUserSessionBuilder setSession(String session) {
+      this.session = session;
+      return this;
+    }
+
+    public SessionName build() {
+      return new SessionName(this);
+    }
+  }
 }
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SessionProto.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SessionProto.java
index 3e4173741..1feb00556 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SessionProto.java
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SessionProto.java
@@ -250,17 +250,20 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "\000(\0010\001\032x\312A\031dialogflow.googleapis.com\322AYht"
           + "tps://www.googleapis.com/auth/cloud-plat"
           + "form,https://www.googleapis.com/auth/dia"
-          + "logflowB\225\003\n#com.google.cloud.dialogflow."
+          + "logflowB\377\003\n#com.google.cloud.dialogflow."
           + "v2beta1B\014SessionProtoP\001ZIgoogle.golang.o"
           + "rg/genproto/googleapis/cloud/dialogflow/"
           + "v2beta1;dialogflow\370\001\001\242\002\002DF\252\002\037Google.Clou"
-          + "d.Dialogflow.V2beta1\352A\347\001\n!dialogflow.goo"
+          + "d.Dialogflow.V2beta1\352A\321\002\n!dialogflow.goo"
           + "gleapis.com/Session\022+projects/{project}/"
           + "agent/sessions/{session}\022Sprojects/{proj"
           + "ect}/agent/environments/{environment}/us"
           + "ers/{user}/sessions/{session}\022@projects/"
           + "{project}/locations/{location}/agent/ses"
-          + "sions/{session}b\006proto3"
+          + "sions/{session}\022hprojects/{project}/loca"
+          + "tions/{location}/agent/environments/{env"
+          + "ironment}/users/{user}/sessions/{session"
+          + "}b\006proto3"
     };
     descriptor =
         com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/TextToSpeechSettings.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/TextToSpeechSettings.java
new file mode 100644
index 000000000..5088f7cfd
--- /dev/null
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/TextToSpeechSettings.java
@@ -0,0 +1,1254 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/v2beta1/environment.proto
+
+package com.google.cloud.dialogflow.v2beta1;
+
+/**
+ *
+ *
+ * 
+ * Instructs the speech synthesizer on how to generate the output audio content.
+ * 

+ *
+ * Protobuf type {@code google.cloud.dialogflow.v2beta1.TextToSpeechSettings}
+ */
+public final class TextToSpeechSettings extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.v2beta1.TextToSpeechSettings)
+    TextToSpeechSettingsOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use TextToSpeechSettings.newBuilder() to construct.
+  private TextToSpeechSettings(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+    super(builder);
+  }
+
+  private TextToSpeechSettings() {
+    outputAudioEncoding_ = 0;
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new TextToSpeechSettings();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private TextToSpeechSettings(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 8:
+            {
+              enableTextToSpeech_ = input.readBool();
+              break;
+            }
+          case 16:
+            {
+              int rawValue = input.readEnum();
+
+              outputAudioEncoding_ = rawValue;
+              break;
+            }
+          case 24:
+            {
+              sampleRateHertz_ = input.readInt32();
+              break;
+            }
+          case 34:
+            {
+              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+                synthesizeSpeechConfigs_ =
+                    com.google.protobuf.MapField.newMapField(
+                        SynthesizeSpeechConfigsDefaultEntryHolder.defaultEntry);
+                mutable_bitField0_ |= 0x00000001;
+              }
+              com.google.protobuf.MapEntry<
+                      java.lang.String, com.google.cloud.dialogflow.v2beta1.SynthesizeSpeechConfig>
+                  synthesizeSpeechConfigs__ =
+                      input.readMessage(
+                          SynthesizeSpeechConfigsDefaultEntryHolder.defaultEntry.getParserForType(),
+                          extensionRegistry);
+              synthesizeSpeechConfigs_
+                  .getMutableMap()
+                  .put(synthesizeSpeechConfigs__.getKey(), synthesizeSpeechConfigs__.getValue());
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.v2beta1.EnvironmentProto
+        .internal_static_google_cloud_dialogflow_v2beta1_TextToSpeechSettings_descriptor;
+  }
+
+  @SuppressWarnings({"rawtypes"})
+  @java.lang.Override
+  protected com.google.protobuf.MapField internalGetMapField(int number) {
+    switch (number) {
+      case 4:
+        return internalGetSynthesizeSpeechConfigs();
+      default:
+        throw new RuntimeException("Invalid map field number: " + number);
+    }
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.v2beta1.EnvironmentProto
+        .internal_static_google_cloud_dialogflow_v2beta1_TextToSpeechSettings_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings.class,
+            com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings.Builder.class);
+  }
+
+  public static final int ENABLE_TEXT_TO_SPEECH_FIELD_NUMBER = 1;
+  private boolean enableTextToSpeech_;
+  /**
+   *
+   *
+   * 
+   * Optional. Indicates whether text to speech is enabled. Even when this field is false,
+   * other settings in this proto are still retained.
+   * 

+   *
+   * bool enable_text_to_speech = 1 [(.google.api.field_behavior) = OPTIONAL];
+   *
+   * @return The enableTextToSpeech.
+   */
+  @java.lang.Override
+  public boolean getEnableTextToSpeech() {
+    return enableTextToSpeech_;
+  }
+
+  public static final int OUTPUT_AUDIO_ENCODING_FIELD_NUMBER = 2;
+  private int outputAudioEncoding_;
+  /**
+   *
+   *
+   * 
+   * Required. Audio encoding of the synthesized audio content.
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.OutputAudioEncoding output_audio_encoding = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   *
+   * @return The enum numeric value on the wire for outputAudioEncoding.
+   */
+  @java.lang.Override
+  public int getOutputAudioEncodingValue() {
+    return outputAudioEncoding_;
+  }
+  /**
+   *
+   *
+   * 
+   * Required. Audio encoding of the synthesized audio content.
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.OutputAudioEncoding output_audio_encoding = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   *
+   * @return The outputAudioEncoding.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.v2beta1.OutputAudioEncoding getOutputAudioEncoding() {
+    @SuppressWarnings("deprecation")
+    com.google.cloud.dialogflow.v2beta1.OutputAudioEncoding result =
+        com.google.cloud.dialogflow.v2beta1.OutputAudioEncoding.valueOf(outputAudioEncoding_);
+    return result == null
+        ? com.google.cloud.dialogflow.v2beta1.OutputAudioEncoding.UNRECOGNIZED
+        : result;
+  }
+
+  public static final int SAMPLE_RATE_HERTZ_FIELD_NUMBER = 3;
+  private int sampleRateHertz_;
+  /**
+   *
+   *
+   * 
+   * Optional. The synthesis sample rate (in hertz) for this audio. If not provided, then
+   * the synthesizer will use the default sample rate based on the audio
+   * encoding. If this is different from the voice's natural sample rate, then
+   * the synthesizer will honor this request by converting to the desired sample
+   * rate (which might result in worse audio quality).
+   * 

+   *
+   * int32 sample_rate_hertz = 3 [(.google.api.field_behavior) = OPTIONAL];
+   *
+   * @return The sampleRateHertz.
+   */
+  @java.lang.Override
+  public int getSampleRateHertz() {
+    return sampleRateHertz_;
+  }
+
+  public static final int SYNTHESIZE_SPEECH_CONFIGS_FIELD_NUMBER = 4;
+
+  private static final class SynthesizeSpeechConfigsDefaultEntryHolder {
+    static final com.google.protobuf.MapEntry<
+            java.lang.String, com.google.cloud.dialogflow.v2beta1.SynthesizeSpeechConfig>
+        defaultEntry =
+            com.google.protobuf.MapEntry
+                .
+                    newDefaultInstance(
+                        com.google.cloud.dialogflow.v2beta1.EnvironmentProto
+                            .internal_static_google_cloud_dialogflow_v2beta1_TextToSpeechSettings_SynthesizeSpeechConfigsEntry_descriptor,
+                        com.google.protobuf.WireFormat.FieldType.STRING,
+                        "",
+                        com.google.protobuf.WireFormat.FieldType.MESSAGE,
+                        com.google.cloud.dialogflow.v2beta1.SynthesizeSpeechConfig
+                            .getDefaultInstance());
+  }
+
+  private com.google.protobuf.MapField<
+          java.lang.String, com.google.cloud.dialogflow.v2beta1.SynthesizeSpeechConfig>
+      synthesizeSpeechConfigs_;
+
+  private com.google.protobuf.MapField<
+          java.lang.String, com.google.cloud.dialogflow.v2beta1.SynthesizeSpeechConfig>
+      internalGetSynthesizeSpeechConfigs() {
+    if (synthesizeSpeechConfigs_ == null) {
+      return com.google.protobuf.MapField.emptyMapField(
+          SynthesizeSpeechConfigsDefaultEntryHolder.defaultEntry);
+    }
+    return synthesizeSpeechConfigs_;
+  }
+
+  public int getSynthesizeSpeechConfigsCount() {
+    return internalGetSynthesizeSpeechConfigs().getMap().size();
+  }
+  /**
+   *
+   *
+   * 
+   * Optional. Configuration of how speech should be synthesized, mapping from language
+   * (https://cloud.google.com/dialogflow/docs/reference/language) to
+   * SynthesizeSpeechConfig.
+   * 

+   *
+   * 
+   * map<string, .google.cloud.dialogflow.v2beta1.SynthesizeSpeechConfig> synthesize_speech_configs = 4 [(.google.api.field_behavior) = OPTIONAL];
+   * 
+   */
+  @java.lang.Override
+  public boolean containsSynthesizeSpeechConfigs(java.lang.String key) {
+    if (key == null) {
+      throw new java.lang.NullPointerException();
+    }
+    return internalGetSynthesizeSpeechConfigs().getMap().containsKey(key);
+  }
+  /** Use {@link #getSynthesizeSpeechConfigsMap()} instead. */
+  @java.lang.Override
+  @java.lang.Deprecated
+  public java.util.Map
+      getSynthesizeSpeechConfigs() {
+    return getSynthesizeSpeechConfigsMap();
+  }
+  /**
+   *
+   *
+   * 
+   * Optional. Configuration of how speech should be synthesized, mapping from language
+   * (https://cloud.google.com/dialogflow/docs/reference/language) to
+   * SynthesizeSpeechConfig.
+   * 

+   *
+   * 
+   * map<string, .google.cloud.dialogflow.v2beta1.SynthesizeSpeechConfig> synthesize_speech_configs = 4 [(.google.api.field_behavior) = OPTIONAL];
+   * 
+   */
+  @java.lang.Override
+  public java.util.Map
+      getSynthesizeSpeechConfigsMap() {
+    return internalGetSynthesizeSpeechConfigs().getMap();
+  }
+  /**
+   *
+   *
+   * 
+   * Optional. Configuration of how speech should be synthesized, mapping from language
+   * (https://cloud.google.com/dialogflow/docs/reference/language) to
+   * SynthesizeSpeechConfig.
+   * 

+   *
+   * 
+   * map<string, .google.cloud.dialogflow.v2beta1.SynthesizeSpeechConfig> synthesize_speech_configs = 4 [(.google.api.field_behavior) = OPTIONAL];
+   * 
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.v2beta1.SynthesizeSpeechConfig
+      getSynthesizeSpeechConfigsOrDefault(
+          java.lang.String key,
+          com.google.cloud.dialogflow.v2beta1.SynthesizeSpeechConfig defaultValue) {
+    if (key == null) {
+      throw new java.lang.NullPointerException();
+    }
+    java.util.Map
+        map = internalGetSynthesizeSpeechConfigs().getMap();
+    return map.containsKey(key) ? map.get(key) : defaultValue;
+  }
+  /**
+   *
+   *
+   * 
+   * Optional. Configuration of how speech should be synthesized, mapping from language
+   * (https://cloud.google.com/dialogflow/docs/reference/language) to
+   * SynthesizeSpeechConfig.
+   * 

+   *
+   * 
+   * map<string, .google.cloud.dialogflow.v2beta1.SynthesizeSpeechConfig> synthesize_speech_configs = 4 [(.google.api.field_behavior) = OPTIONAL];
+   * 
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.v2beta1.SynthesizeSpeechConfig
+      getSynthesizeSpeechConfigsOrThrow(java.lang.String key) {
+    if (key == null) {
+      throw new java.lang.NullPointerException();
+    }
+    java.util.Map
+        map = internalGetSynthesizeSpeechConfigs().getMap();
+    if (!map.containsKey(key)) {
+      throw new java.lang.IllegalArgumentException();
+    }
+    return map.get(key);
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (enableTextToSpeech_ != false) {
+      output.writeBool(1, enableTextToSpeech_);
+    }
+    if (outputAudioEncoding_
+        != com.google.cloud.dialogflow.v2beta1.OutputAudioEncoding.OUTPUT_AUDIO_ENCODING_UNSPECIFIED
+            .getNumber()) {
+      output.writeEnum(2, outputAudioEncoding_);
+    }
+    if (sampleRateHertz_ != 0) {
+      output.writeInt32(3, sampleRateHertz_);
+    }
+    com.google.protobuf.GeneratedMessageV3.serializeStringMapTo(
+        output,
+        internalGetSynthesizeSpeechConfigs(),
+        SynthesizeSpeechConfigsDefaultEntryHolder.defaultEntry,
+        4);
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (enableTextToSpeech_ != false) {
+      size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, enableTextToSpeech_);
+    }
+    if (outputAudioEncoding_
+        != com.google.cloud.dialogflow.v2beta1.OutputAudioEncoding.OUTPUT_AUDIO_ENCODING_UNSPECIFIED
+            .getNumber()) {
+      size += com.google.protobuf.CodedOutputStream.computeEnumSize(2, outputAudioEncoding_);
+    }
+    if (sampleRateHertz_ != 0) {
+      size += com.google.protobuf.CodedOutputStream.computeInt32Size(3, sampleRateHertz_);
+    }
+    for (java.util.Map.Entry<
+            java.lang.String, com.google.cloud.dialogflow.v2beta1.SynthesizeSpeechConfig>
+        entry : internalGetSynthesizeSpeechConfigs().getMap().entrySet()) {
+      com.google.protobuf.MapEntry<
+              java.lang.String, com.google.cloud.dialogflow.v2beta1.SynthesizeSpeechConfig>
+          synthesizeSpeechConfigs__ =
+              SynthesizeSpeechConfigsDefaultEntryHolder.defaultEntry
+                  .newBuilderForType()
+                  .setKey(entry.getKey())
+                  .setValue(entry.getValue())
+                  .build();
+      size +=
+          com.google.protobuf.CodedOutputStream.computeMessageSize(4, synthesizeSpeechConfigs__);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings other =
+        (com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings) obj;
+
+    if (getEnableTextToSpeech() != other.getEnableTextToSpeech()) return false;
+    if (outputAudioEncoding_ != other.outputAudioEncoding_) return false;
+    if (getSampleRateHertz() != other.getSampleRateHertz()) return false;
+    if (!internalGetSynthesizeSpeechConfigs().equals(other.internalGetSynthesizeSpeechConfigs()))
+      return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + ENABLE_TEXT_TO_SPEECH_FIELD_NUMBER;
+    hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnableTextToSpeech());
+    hash = (37 * hash) + OUTPUT_AUDIO_ENCODING_FIELD_NUMBER;
+    hash = (53 * hash) + outputAudioEncoding_;
+    hash = (37 * hash) + SAMPLE_RATE_HERTZ_FIELD_NUMBER;
+    hash = (53 * hash) + getSampleRateHertz();
+    if (!internalGetSynthesizeSpeechConfigs().getMap().isEmpty()) {
+      hash = (37 * hash) + SYNTHESIZE_SPEECH_CONFIGS_FIELD_NUMBER;
+      hash = (53 * hash) + internalGetSynthesizeSpeechConfigs().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * 
+   * Instructs the speech synthesizer on how to generate the output audio content.
+   * 

+   *
+   * Protobuf type {@code google.cloud.dialogflow.v2beta1.TextToSpeechSettings}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.v2beta1.TextToSpeechSettings)
+      com.google.cloud.dialogflow.v2beta1.TextToSpeechSettingsOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.v2beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_v2beta1_TextToSpeechSettings_descriptor;
+    }
+
+    @SuppressWarnings({"rawtypes"})
+    protected com.google.protobuf.MapField internalGetMapField(int number) {
+      switch (number) {
+        case 4:
+          return internalGetSynthesizeSpeechConfigs();
+        default:
+          throw new RuntimeException("Invalid map field number: " + number);
+      }
+    }
+
+    @SuppressWarnings({"rawtypes"})
+    protected com.google.protobuf.MapField internalGetMutableMapField(int number) {
+      switch (number) {
+        case 4:
+          return internalGetMutableSynthesizeSpeechConfigs();
+        default:
+          throw new RuntimeException("Invalid map field number: " + number);
+      }
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.v2beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_v2beta1_TextToSpeechSettings_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings.class,
+              com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      enableTextToSpeech_ = false;
+
+      outputAudioEncoding_ = 0;
+
+      sampleRateHertz_ = 0;
+
+      internalGetMutableSynthesizeSpeechConfigs().clear();
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.v2beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_v2beta1_TextToSpeechSettings_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings build() {
+      com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings buildPartial() {
+      com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings result =
+          new com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings(this);
+      int from_bitField0_ = bitField0_;
+      result.enableTextToSpeech_ = enableTextToSpeech_;
+      result.outputAudioEncoding_ = outputAudioEncoding_;
+      result.sampleRateHertz_ = sampleRateHertz_;
+      result.synthesizeSpeechConfigs_ = internalGetSynthesizeSpeechConfigs();
+      result.synthesizeSpeechConfigs_.makeImmutable();
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings) {
+        return mergeFrom((com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings other) {
+      if (other == com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings.getDefaultInstance())
+        return this;
+      if (other.getEnableTextToSpeech() != false) {
+        setEnableTextToSpeech(other.getEnableTextToSpeech());
+      }
+      if (other.outputAudioEncoding_ != 0) {
+        setOutputAudioEncodingValue(other.getOutputAudioEncodingValue());
+      }
+      if (other.getSampleRateHertz() != 0) {
+        setSampleRateHertz(other.getSampleRateHertz());
+      }
+      internalGetMutableSynthesizeSpeechConfigs()
+          .mergeFrom(other.internalGetSynthesizeSpeechConfigs());
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private int bitField0_;
+
+    private boolean enableTextToSpeech_;
+    /**
+     *
+     *
+     * 
+     * Optional. Indicates whether text to speech is enabled. Even when this field is false,
+     * other settings in this proto are still retained.
+     * 

+     *
+     * bool enable_text_to_speech = 1 [(.google.api.field_behavior) = OPTIONAL];
+     *
+     * @return The enableTextToSpeech.
+     */
+    @java.lang.Override
+    public boolean getEnableTextToSpeech() {
+      return enableTextToSpeech_;
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. Indicates whether text to speech is enabled. Even when this field is false,
+     * other settings in this proto are still retained.
+     * 

+     *
+     * bool enable_text_to_speech = 1 [(.google.api.field_behavior) = OPTIONAL];
+     *
+     * @param value The enableTextToSpeech to set.
+     * @return This builder for chaining.
+     */
+    public Builder setEnableTextToSpeech(boolean value) {
+
+      enableTextToSpeech_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. Indicates whether text to speech is enabled. Even when this field is false,
+     * other settings in this proto are still retained.
+     * 

+     *
+     * bool enable_text_to_speech = 1 [(.google.api.field_behavior) = OPTIONAL];
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearEnableTextToSpeech() {
+
+      enableTextToSpeech_ = false;
+      onChanged();
+      return this;
+    }
+
+    private int outputAudioEncoding_ = 0;
+    /**
+     *
+     *
+     * 
+     * Required. Audio encoding of the synthesized audio content.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.OutputAudioEncoding output_audio_encoding = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     *
+     * @return The enum numeric value on the wire for outputAudioEncoding.
+     */
+    @java.lang.Override
+    public int getOutputAudioEncodingValue() {
+      return outputAudioEncoding_;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. Audio encoding of the synthesized audio content.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.OutputAudioEncoding output_audio_encoding = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     *
+     * @param value The enum numeric value on the wire for outputAudioEncoding to set.
+     * @return This builder for chaining.
+     */
+    public Builder setOutputAudioEncodingValue(int value) {
+
+      outputAudioEncoding_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. Audio encoding of the synthesized audio content.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.OutputAudioEncoding output_audio_encoding = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     *
+     * @return The outputAudioEncoding.
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.OutputAudioEncoding getOutputAudioEncoding() {
+      @SuppressWarnings("deprecation")
+      com.google.cloud.dialogflow.v2beta1.OutputAudioEncoding result =
+          com.google.cloud.dialogflow.v2beta1.OutputAudioEncoding.valueOf(outputAudioEncoding_);
+      return result == null
+          ? com.google.cloud.dialogflow.v2beta1.OutputAudioEncoding.UNRECOGNIZED
+          : result;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. Audio encoding of the synthesized audio content.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.OutputAudioEncoding output_audio_encoding = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     *
+     * @param value The outputAudioEncoding to set.
+     * @return This builder for chaining.
+     */
+    public Builder setOutputAudioEncoding(
+        com.google.cloud.dialogflow.v2beta1.OutputAudioEncoding value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      outputAudioEncoding_ = value.getNumber();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. Audio encoding of the synthesized audio content.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.OutputAudioEncoding output_audio_encoding = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearOutputAudioEncoding() {
+
+      outputAudioEncoding_ = 0;
+      onChanged();
+      return this;
+    }
+
+    private int sampleRateHertz_;
+    /**
+     *
+     *
+     * 
+     * Optional. The synthesis sample rate (in hertz) for this audio. If not provided, then
+     * the synthesizer will use the default sample rate based on the audio
+     * encoding. If this is different from the voice's natural sample rate, then
+     * the synthesizer will honor this request by converting to the desired sample
+     * rate (which might result in worse audio quality).
+     * 

+     *
+     * int32 sample_rate_hertz = 3 [(.google.api.field_behavior) = OPTIONAL];
+     *
+     * @return The sampleRateHertz.
+     */
+    @java.lang.Override
+    public int getSampleRateHertz() {
+      return sampleRateHertz_;
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. The synthesis sample rate (in hertz) for this audio. If not provided, then
+     * the synthesizer will use the default sample rate based on the audio
+     * encoding. If this is different from the voice's natural sample rate, then
+     * the synthesizer will honor this request by converting to the desired sample
+     * rate (which might result in worse audio quality).
+     * 

+     *
+     * int32 sample_rate_hertz = 3 [(.google.api.field_behavior) = OPTIONAL];
+     *
+     * @param value The sampleRateHertz to set.
+     * @return This builder for chaining.
+     */
+    public Builder setSampleRateHertz(int value) {
+
+      sampleRateHertz_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. The synthesis sample rate (in hertz) for this audio. If not provided, then
+     * the synthesizer will use the default sample rate based on the audio
+     * encoding. If this is different from the voice's natural sample rate, then
+     * the synthesizer will honor this request by converting to the desired sample
+     * rate (which might result in worse audio quality).
+     * 

+     *
+     * int32 sample_rate_hertz = 3 [(.google.api.field_behavior) = OPTIONAL];
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearSampleRateHertz() {
+
+      sampleRateHertz_ = 0;
+      onChanged();
+      return this;
+    }
+
+    private com.google.protobuf.MapField<
+            java.lang.String, com.google.cloud.dialogflow.v2beta1.SynthesizeSpeechConfig>
+        synthesizeSpeechConfigs_;
+
+    private com.google.protobuf.MapField<
+            java.lang.String, com.google.cloud.dialogflow.v2beta1.SynthesizeSpeechConfig>
+        internalGetSynthesizeSpeechConfigs() {
+      if (synthesizeSpeechConfigs_ == null) {
+        return com.google.protobuf.MapField.emptyMapField(
+            SynthesizeSpeechConfigsDefaultEntryHolder.defaultEntry);
+      }
+      return synthesizeSpeechConfigs_;
+    }
+
+    private com.google.protobuf.MapField<
+            java.lang.String, com.google.cloud.dialogflow.v2beta1.SynthesizeSpeechConfig>
+        internalGetMutableSynthesizeSpeechConfigs() {
+      onChanged();
+      ;
+      if (synthesizeSpeechConfigs_ == null) {
+        synthesizeSpeechConfigs_ =
+            com.google.protobuf.MapField.newMapField(
+                SynthesizeSpeechConfigsDefaultEntryHolder.defaultEntry);
+      }
+      if (!synthesizeSpeechConfigs_.isMutable()) {
+        synthesizeSpeechConfigs_ = synthesizeSpeechConfigs_.copy();
+      }
+      return synthesizeSpeechConfigs_;
+    }
+
+    public int getSynthesizeSpeechConfigsCount() {
+      return internalGetSynthesizeSpeechConfigs().getMap().size();
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. Configuration of how speech should be synthesized, mapping from language
+     * (https://cloud.google.com/dialogflow/docs/reference/language) to
+     * SynthesizeSpeechConfig.
+     * 

+     *
+     * 
+     * map<string, .google.cloud.dialogflow.v2beta1.SynthesizeSpeechConfig> synthesize_speech_configs = 4 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     */
+    @java.lang.Override
+    public boolean containsSynthesizeSpeechConfigs(java.lang.String key) {
+      if (key == null) {
+        throw new java.lang.NullPointerException();
+      }
+      return internalGetSynthesizeSpeechConfigs().getMap().containsKey(key);
+    }
+    /** Use {@link #getSynthesizeSpeechConfigsMap()} instead. */
+    @java.lang.Override
+    @java.lang.Deprecated
+    public java.util.Map<
+            java.lang.String, com.google.cloud.dialogflow.v2beta1.SynthesizeSpeechConfig>
+        getSynthesizeSpeechConfigs() {
+      return getSynthesizeSpeechConfigsMap();
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. Configuration of how speech should be synthesized, mapping from language
+     * (https://cloud.google.com/dialogflow/docs/reference/language) to
+     * SynthesizeSpeechConfig.
+     * 

+     *
+     * 
+     * map<string, .google.cloud.dialogflow.v2beta1.SynthesizeSpeechConfig> synthesize_speech_configs = 4 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     */
+    @java.lang.Override
+    public java.util.Map<
+            java.lang.String, com.google.cloud.dialogflow.v2beta1.SynthesizeSpeechConfig>
+        getSynthesizeSpeechConfigsMap() {
+      return internalGetSynthesizeSpeechConfigs().getMap();
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. Configuration of how speech should be synthesized, mapping from language
+     * (https://cloud.google.com/dialogflow/docs/reference/language) to
+     * SynthesizeSpeechConfig.
+     * 

+     *
+     * 
+     * map<string, .google.cloud.dialogflow.v2beta1.SynthesizeSpeechConfig> synthesize_speech_configs = 4 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.SynthesizeSpeechConfig
+        getSynthesizeSpeechConfigsOrDefault(
+            java.lang.String key,
+            com.google.cloud.dialogflow.v2beta1.SynthesizeSpeechConfig defaultValue) {
+      if (key == null) {
+        throw new java.lang.NullPointerException();
+      }
+      java.util.Map
+          map = internalGetSynthesizeSpeechConfigs().getMap();
+      return map.containsKey(key) ? map.get(key) : defaultValue;
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. Configuration of how speech should be synthesized, mapping from language
+     * (https://cloud.google.com/dialogflow/docs/reference/language) to
+     * SynthesizeSpeechConfig.
+     * 

+     *
+     * 
+     * map<string, .google.cloud.dialogflow.v2beta1.SynthesizeSpeechConfig> synthesize_speech_configs = 4 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.SynthesizeSpeechConfig
+        getSynthesizeSpeechConfigsOrThrow(java.lang.String key) {
+      if (key == null) {
+        throw new java.lang.NullPointerException();
+      }
+      java.util.Map
+          map = internalGetSynthesizeSpeechConfigs().getMap();
+      if (!map.containsKey(key)) {
+        throw new java.lang.IllegalArgumentException();
+      }
+      return map.get(key);
+    }
+
+    public Builder clearSynthesizeSpeechConfigs() {
+      internalGetMutableSynthesizeSpeechConfigs().getMutableMap().clear();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. Configuration of how speech should be synthesized, mapping from language
+     * (https://cloud.google.com/dialogflow/docs/reference/language) to
+     * SynthesizeSpeechConfig.
+     * 

+     *
+     * 
+     * map<string, .google.cloud.dialogflow.v2beta1.SynthesizeSpeechConfig> synthesize_speech_configs = 4 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     */
+    public Builder removeSynthesizeSpeechConfigs(java.lang.String key) {
+      if (key == null) {
+        throw new java.lang.NullPointerException();
+      }
+      internalGetMutableSynthesizeSpeechConfigs().getMutableMap().remove(key);
+      return this;
+    }
+    /** Use alternate mutation accessors instead. */
+    @java.lang.Deprecated
+    public java.util.Map<
+            java.lang.String, com.google.cloud.dialogflow.v2beta1.SynthesizeSpeechConfig>
+        getMutableSynthesizeSpeechConfigs() {
+      return internalGetMutableSynthesizeSpeechConfigs().getMutableMap();
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. Configuration of how speech should be synthesized, mapping from language
+     * (https://cloud.google.com/dialogflow/docs/reference/language) to
+     * SynthesizeSpeechConfig.
+     * 

+     *
+     * 
+     * map<string, .google.cloud.dialogflow.v2beta1.SynthesizeSpeechConfig> synthesize_speech_configs = 4 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     */
+    public Builder putSynthesizeSpeechConfigs(
+        java.lang.String key, com.google.cloud.dialogflow.v2beta1.SynthesizeSpeechConfig value) {
+      if (key == null) {
+        throw new java.lang.NullPointerException();
+      }
+      if (value == null) {
+        throw new java.lang.NullPointerException();
+      }
+      internalGetMutableSynthesizeSpeechConfigs().getMutableMap().put(key, value);
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. Configuration of how speech should be synthesized, mapping from language
+     * (https://cloud.google.com/dialogflow/docs/reference/language) to
+     * SynthesizeSpeechConfig.
+     * 

+     *
+     * 
+     * map<string, .google.cloud.dialogflow.v2beta1.SynthesizeSpeechConfig> synthesize_speech_configs = 4 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     */
+    public Builder putAllSynthesizeSpeechConfigs(
+        java.util.Map
+            values) {
+      internalGetMutableSynthesizeSpeechConfigs().getMutableMap().putAll(values);
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.v2beta1.TextToSpeechSettings)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.v2beta1.TextToSpeechSettings)
+  private static final com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings();
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser PARSER =
+      new com.google.protobuf.AbstractParser() {
+        @java.lang.Override
+        public TextToSpeechSettings parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new TextToSpeechSettings(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.v2beta1.TextToSpeechSettings getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/TextToSpeechSettingsOrBuilder.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/TextToSpeechSettingsOrBuilder.java
new file mode 100644
index 000000000..6709bb615
--- /dev/null
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/TextToSpeechSettingsOrBuilder.java
@@ -0,0 +1,164 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/v2beta1/environment.proto
+
+package com.google.cloud.dialogflow.v2beta1;
+
+public interface TextToSpeechSettingsOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.v2beta1.TextToSpeechSettings)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * 
+   * Optional. Indicates whether text to speech is enabled. Even when this field is false,
+   * other settings in this proto are still retained.
+   * 

+   *
+   * bool enable_text_to_speech = 1 [(.google.api.field_behavior) = OPTIONAL];
+   *
+   * @return The enableTextToSpeech.
+   */
+  boolean getEnableTextToSpeech();
+
+  /**
+   *
+   *
+   * 
+   * Required. Audio encoding of the synthesized audio content.
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.OutputAudioEncoding output_audio_encoding = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   *
+   * @return The enum numeric value on the wire for outputAudioEncoding.
+   */
+  int getOutputAudioEncodingValue();
+  /**
+   *
+   *
+   * 
+   * Required. Audio encoding of the synthesized audio content.
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.OutputAudioEncoding output_audio_encoding = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   *
+   * @return The outputAudioEncoding.
+   */
+  com.google.cloud.dialogflow.v2beta1.OutputAudioEncoding getOutputAudioEncoding();
+
+  /**
+   *
+   *
+   * 
+   * Optional. The synthesis sample rate (in hertz) for this audio. If not provided, then
+   * the synthesizer will use the default sample rate based on the audio
+   * encoding. If this is different from the voice's natural sample rate, then
+   * the synthesizer will honor this request by converting to the desired sample
+   * rate (which might result in worse audio quality).
+   * 

+   *
+   * int32 sample_rate_hertz = 3 [(.google.api.field_behavior) = OPTIONAL];
+   *
+   * @return The sampleRateHertz.
+   */
+  int getSampleRateHertz();
+
+  /**
+   *
+   *
+   * 
+   * Optional. Configuration of how speech should be synthesized, mapping from language
+   * (https://cloud.google.com/dialogflow/docs/reference/language) to
+   * SynthesizeSpeechConfig.
+   * 

+   *
+   * 
+   * map<string, .google.cloud.dialogflow.v2beta1.SynthesizeSpeechConfig> synthesize_speech_configs = 4 [(.google.api.field_behavior) = OPTIONAL];
+   * 
+   */
+  int getSynthesizeSpeechConfigsCount();
+  /**
+   *
+   *
+   * 
+   * Optional. Configuration of how speech should be synthesized, mapping from language
+   * (https://cloud.google.com/dialogflow/docs/reference/language) to
+   * SynthesizeSpeechConfig.
+   * 

+   *
+   * 
+   * map<string, .google.cloud.dialogflow.v2beta1.SynthesizeSpeechConfig> synthesize_speech_configs = 4 [(.google.api.field_behavior) = OPTIONAL];
+   * 
+   */
+  boolean containsSynthesizeSpeechConfigs(java.lang.String key);
+  /** Use {@link #getSynthesizeSpeechConfigsMap()} instead. */
+  @java.lang.Deprecated
+  java.util.Map
+      getSynthesizeSpeechConfigs();
+  /**
+   *
+   *
+   * 
+   * Optional. Configuration of how speech should be synthesized, mapping from language
+   * (https://cloud.google.com/dialogflow/docs/reference/language) to
+   * SynthesizeSpeechConfig.
+   * 

+   *
+   * 
+   * map<string, .google.cloud.dialogflow.v2beta1.SynthesizeSpeechConfig> synthesize_speech_configs = 4 [(.google.api.field_behavior) = OPTIONAL];
+   * 
+   */
+  java.util.Map
+      getSynthesizeSpeechConfigsMap();
+  /**
+   *
+   *
+   * 
+   * Optional. Configuration of how speech should be synthesized, mapping from language
+   * (https://cloud.google.com/dialogflow/docs/reference/language) to
+   * SynthesizeSpeechConfig.
+   * 

+   *
+   * 
+   * map<string, .google.cloud.dialogflow.v2beta1.SynthesizeSpeechConfig> synthesize_speech_configs = 4 [(.google.api.field_behavior) = OPTIONAL];
+   * 
+   */
+  com.google.cloud.dialogflow.v2beta1.SynthesizeSpeechConfig getSynthesizeSpeechConfigsOrDefault(
+      java.lang.String key,
+      com.google.cloud.dialogflow.v2beta1.SynthesizeSpeechConfig defaultValue);
+  /**
+   *
+   *
+   * 
+   * Optional. Configuration of how speech should be synthesized, mapping from language
+   * (https://cloud.google.com/dialogflow/docs/reference/language) to
+   * SynthesizeSpeechConfig.
+   * 

+   *
+   * 
+   * map<string, .google.cloud.dialogflow.v2beta1.SynthesizeSpeechConfig> synthesize_speech_configs = 4 [(.google.api.field_behavior) = OPTIONAL];
+   * 
+   */
+  com.google.cloud.dialogflow.v2beta1.SynthesizeSpeechConfig getSynthesizeSpeechConfigsOrThrow(
+      java.lang.String key);
+}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/UpdateAnswerRecordRequest.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/UpdateAnswerRecordRequest.java
index 4444f540e..b8f72245b 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/UpdateAnswerRecordRequest.java
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/UpdateAnswerRecordRequest.java
@@ -22,8 +22,7 @@
  *
  *
  * 
- * Request message for
- * [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord].
+ * Request message for [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord].
  * 

  *
  * Protobuf type {@code google.cloud.dialogflow.v2beta1.UpdateAnswerRecordRequest}
@@ -417,8 +416,7 @@ protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.Build
    *
    *
    * 
-   * Request message for
-   * [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord].
+   * Request message for [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord].
    * 

    *
    * Protobuf type {@code google.cloud.dialogflow.v2beta1.UpdateAnswerRecordRequest}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/UpdateEnvironmentRequest.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/UpdateEnvironmentRequest.java
new file mode 100644
index 000000000..5ae332f73
--- /dev/null
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/UpdateEnvironmentRequest.java
@@ -0,0 +1,1161 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/v2beta1/environment.proto
+
+package com.google.cloud.dialogflow.v2beta1;
+
+/**
+ *
+ *
+ * 
+ * The request message for [Environments.UpdateEnvironment][google.cloud.dialogflow.v2beta1.Environments.UpdateEnvironment].
+ * 

+ *
+ * Protobuf type {@code google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest}
+ */
+public final class UpdateEnvironmentRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest)
+    UpdateEnvironmentRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use UpdateEnvironmentRequest.newBuilder() to construct.
+  private UpdateEnvironmentRequest(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+    super(builder);
+  }
+
+  private UpdateEnvironmentRequest() {}
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new UpdateEnvironmentRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private UpdateEnvironmentRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              com.google.cloud.dialogflow.v2beta1.Environment.Builder subBuilder = null;
+              if (environment_ != null) {
+                subBuilder = environment_.toBuilder();
+              }
+              environment_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.v2beta1.Environment.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(environment_);
+                environment_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 18:
+            {
+              com.google.protobuf.FieldMask.Builder subBuilder = null;
+              if (updateMask_ != null) {
+                subBuilder = updateMask_.toBuilder();
+              }
+              updateMask_ =
+                  input.readMessage(com.google.protobuf.FieldMask.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(updateMask_);
+                updateMask_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 24:
+            {
+              allowLoadToDraftAndDiscardChanges_ = input.readBool();
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.v2beta1.EnvironmentProto
+        .internal_static_google_cloud_dialogflow_v2beta1_UpdateEnvironmentRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.v2beta1.EnvironmentProto
+        .internal_static_google_cloud_dialogflow_v2beta1_UpdateEnvironmentRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest.class,
+            com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest.Builder.class);
+  }
+
+  public static final int ENVIRONMENT_FIELD_NUMBER = 1;
+  private com.google.cloud.dialogflow.v2beta1.Environment environment_;
+  /**
+   *
+   *
+   * 
+   * Required. The environment to update.
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   *
+   * @return Whether the environment field is set.
+   */
+  @java.lang.Override
+  public boolean hasEnvironment() {
+    return environment_ != null;
+  }
+  /**
+   *
+   *
+   * 
+   * Required. The environment to update.
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   *
+   * @return The environment.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.v2beta1.Environment getEnvironment() {
+    return environment_ == null
+        ? com.google.cloud.dialogflow.v2beta1.Environment.getDefaultInstance()
+        : environment_;
+  }
+  /**
+   *
+   *
+   * 
+   * Required. The environment to update.
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.v2beta1.EnvironmentOrBuilder getEnvironmentOrBuilder() {
+    return getEnvironment();
+  }
+
+  public static final int UPDATE_MASK_FIELD_NUMBER = 2;
+  private com.google.protobuf.FieldMask updateMask_;
+  /**
+   *
+   *
+   * 
+   * Required. The mask to control which fields get updated.
+   * 

+   *
+   * .google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   *
+   * @return Whether the updateMask field is set.
+   */
+  @java.lang.Override
+  public boolean hasUpdateMask() {
+    return updateMask_ != null;
+  }
+  /**
+   *
+   *
+   * 
+   * Required. The mask to control which fields get updated.
+   * 

+   *
+   * .google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   *
+   * @return The updateMask.
+   */
+  @java.lang.Override
+  public com.google.protobuf.FieldMask getUpdateMask() {
+    return updateMask_ == null ? com.google.protobuf.FieldMask.getDefaultInstance() : updateMask_;
+  }
+  /**
+   *
+   *
+   * 
+   * Required. The mask to control which fields get updated.
+   * 

+   *
+   * .google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   */
+  @java.lang.Override
+  public com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder() {
+    return getUpdateMask();
+  }
+
+  public static final int ALLOW_LOAD_TO_DRAFT_AND_DISCARD_CHANGES_FIELD_NUMBER = 3;
+  private boolean allowLoadToDraftAndDiscardChanges_;
+  /**
+   *
+   *
+   * 
+   * Optional. This field is used to prevent accidental overwrite of the draft
+   * environment, which is an operation that cannot be undone. To confirm that
+   * the caller desires this overwrite, this field must be explicitly set to
+   * true when updating the draft environment (environment ID = `-`).
+   * 

+   *
+   * 
+   * bool allow_load_to_draft_and_discard_changes = 3 [(.google.api.field_behavior) = OPTIONAL];
+   * 
+   *
+   * @return The allowLoadToDraftAndDiscardChanges.
+   */
+  @java.lang.Override
+  public boolean getAllowLoadToDraftAndDiscardChanges() {
+    return allowLoadToDraftAndDiscardChanges_;
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (environment_ != null) {
+      output.writeMessage(1, getEnvironment());
+    }
+    if (updateMask_ != null) {
+      output.writeMessage(2, getUpdateMask());
+    }
+    if (allowLoadToDraftAndDiscardChanges_ != false) {
+      output.writeBool(3, allowLoadToDraftAndDiscardChanges_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (environment_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getEnvironment());
+    }
+    if (updateMask_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getUpdateMask());
+    }
+    if (allowLoadToDraftAndDiscardChanges_ != false) {
+      size +=
+          com.google.protobuf.CodedOutputStream.computeBoolSize(
+              3, allowLoadToDraftAndDiscardChanges_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest other =
+        (com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest) obj;
+
+    if (hasEnvironment() != other.hasEnvironment()) return false;
+    if (hasEnvironment()) {
+      if (!getEnvironment().equals(other.getEnvironment())) return false;
+    }
+    if (hasUpdateMask() != other.hasUpdateMask()) return false;
+    if (hasUpdateMask()) {
+      if (!getUpdateMask().equals(other.getUpdateMask())) return false;
+    }
+    if (getAllowLoadToDraftAndDiscardChanges() != other.getAllowLoadToDraftAndDiscardChanges())
+      return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (hasEnvironment()) {
+      hash = (37 * hash) + ENVIRONMENT_FIELD_NUMBER;
+      hash = (53 * hash) + getEnvironment().hashCode();
+    }
+    if (hasUpdateMask()) {
+      hash = (37 * hash) + UPDATE_MASK_FIELD_NUMBER;
+      hash = (53 * hash) + getUpdateMask().hashCode();
+    }
+    hash = (37 * hash) + ALLOW_LOAD_TO_DRAFT_AND_DISCARD_CHANGES_FIELD_NUMBER;
+    hash =
+        (53 * hash)
+            + com.google.protobuf.Internal.hashBoolean(getAllowLoadToDraftAndDiscardChanges());
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * 
+   * The request message for [Environments.UpdateEnvironment][google.cloud.dialogflow.v2beta1.Environments.UpdateEnvironment].
+   * 

+   *
+   * Protobuf type {@code google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest)
+      com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.v2beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_v2beta1_UpdateEnvironmentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.v2beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_v2beta1_UpdateEnvironmentRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest.class,
+              com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      if (environmentBuilder_ == null) {
+        environment_ = null;
+      } else {
+        environment_ = null;
+        environmentBuilder_ = null;
+      }
+      if (updateMaskBuilder_ == null) {
+        updateMask_ = null;
+      } else {
+        updateMask_ = null;
+        updateMaskBuilder_ = null;
+      }
+      allowLoadToDraftAndDiscardChanges_ = false;
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.v2beta1.EnvironmentProto
+          .internal_static_google_cloud_dialogflow_v2beta1_UpdateEnvironmentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest
+        getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest build() {
+      com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest buildPartial() {
+      com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest result =
+          new com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest(this);
+      if (environmentBuilder_ == null) {
+        result.environment_ = environment_;
+      } else {
+        result.environment_ = environmentBuilder_.build();
+      }
+      if (updateMaskBuilder_ == null) {
+        result.updateMask_ = updateMask_;
+      } else {
+        result.updateMask_ = updateMaskBuilder_.build();
+      }
+      result.allowLoadToDraftAndDiscardChanges_ = allowLoadToDraftAndDiscardChanges_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest other) {
+      if (other
+          == com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest.getDefaultInstance())
+        return this;
+      if (other.hasEnvironment()) {
+        mergeEnvironment(other.getEnvironment());
+      }
+      if (other.hasUpdateMask()) {
+        mergeUpdateMask(other.getUpdateMask());
+      }
+      if (other.getAllowLoadToDraftAndDiscardChanges() != false) {
+        setAllowLoadToDraftAndDiscardChanges(other.getAllowLoadToDraftAndDiscardChanges());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private com.google.cloud.dialogflow.v2beta1.Environment environment_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.v2beta1.Environment,
+            com.google.cloud.dialogflow.v2beta1.Environment.Builder,
+            com.google.cloud.dialogflow.v2beta1.EnvironmentOrBuilder>
+        environmentBuilder_;
+    /**
+     *
+     *
+     * 
+     * Required. The environment to update.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     *
+     * @return Whether the environment field is set.
+     */
+    public boolean hasEnvironment() {
+      return environmentBuilder_ != null || environment_ != null;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The environment to update.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     *
+     * @return The environment.
+     */
+    public com.google.cloud.dialogflow.v2beta1.Environment getEnvironment() {
+      if (environmentBuilder_ == null) {
+        return environment_ == null
+            ? com.google.cloud.dialogflow.v2beta1.Environment.getDefaultInstance()
+            : environment_;
+      } else {
+        return environmentBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The environment to update.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder setEnvironment(com.google.cloud.dialogflow.v2beta1.Environment value) {
+      if (environmentBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        environment_ = value;
+        onChanged();
+      } else {
+        environmentBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The environment to update.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder setEnvironment(
+        com.google.cloud.dialogflow.v2beta1.Environment.Builder builderForValue) {
+      if (environmentBuilder_ == null) {
+        environment_ = builderForValue.build();
+        onChanged();
+      } else {
+        environmentBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The environment to update.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder mergeEnvironment(com.google.cloud.dialogflow.v2beta1.Environment value) {
+      if (environmentBuilder_ == null) {
+        if (environment_ != null) {
+          environment_ =
+              com.google.cloud.dialogflow.v2beta1.Environment.newBuilder(environment_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          environment_ = value;
+        }
+        onChanged();
+      } else {
+        environmentBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The environment to update.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder clearEnvironment() {
+      if (environmentBuilder_ == null) {
+        environment_ = null;
+        onChanged();
+      } else {
+        environment_ = null;
+        environmentBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The environment to update.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public com.google.cloud.dialogflow.v2beta1.Environment.Builder getEnvironmentBuilder() {
+
+      onChanged();
+      return getEnvironmentFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The environment to update.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public com.google.cloud.dialogflow.v2beta1.EnvironmentOrBuilder getEnvironmentOrBuilder() {
+      if (environmentBuilder_ != null) {
+        return environmentBuilder_.getMessageOrBuilder();
+      } else {
+        return environment_ == null
+            ? com.google.cloud.dialogflow.v2beta1.Environment.getDefaultInstance()
+            : environment_;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The environment to update.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.v2beta1.Environment,
+            com.google.cloud.dialogflow.v2beta1.Environment.Builder,
+            com.google.cloud.dialogflow.v2beta1.EnvironmentOrBuilder>
+        getEnvironmentFieldBuilder() {
+      if (environmentBuilder_ == null) {
+        environmentBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.v2beta1.Environment,
+                com.google.cloud.dialogflow.v2beta1.Environment.Builder,
+                com.google.cloud.dialogflow.v2beta1.EnvironmentOrBuilder>(
+                getEnvironment(), getParentForChildren(), isClean());
+        environment_ = null;
+      }
+      return environmentBuilder_;
+    }
+
+    private com.google.protobuf.FieldMask updateMask_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.FieldMask,
+            com.google.protobuf.FieldMask.Builder,
+            com.google.protobuf.FieldMaskOrBuilder>
+        updateMaskBuilder_;
+    /**
+     *
+     *
+     * 
+     * Required. The mask to control which fields get updated.
+     * 

+     *
+     * .google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     *
+     * @return Whether the updateMask field is set.
+     */
+    public boolean hasUpdateMask() {
+      return updateMaskBuilder_ != null || updateMask_ != null;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The mask to control which fields get updated.
+     * 

+     *
+     * .google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     *
+     * @return The updateMask.
+     */
+    public com.google.protobuf.FieldMask getUpdateMask() {
+      if (updateMaskBuilder_ == null) {
+        return updateMask_ == null
+            ? com.google.protobuf.FieldMask.getDefaultInstance()
+            : updateMask_;
+      } else {
+        return updateMaskBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The mask to control which fields get updated.
+     * 

+     *
+     * .google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder setUpdateMask(com.google.protobuf.FieldMask value) {
+      if (updateMaskBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        updateMask_ = value;
+        onChanged();
+      } else {
+        updateMaskBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The mask to control which fields get updated.
+     * 

+     *
+     * .google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder setUpdateMask(com.google.protobuf.FieldMask.Builder builderForValue) {
+      if (updateMaskBuilder_ == null) {
+        updateMask_ = builderForValue.build();
+        onChanged();
+      } else {
+        updateMaskBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The mask to control which fields get updated.
+     * 

+     *
+     * .google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder mergeUpdateMask(com.google.protobuf.FieldMask value) {
+      if (updateMaskBuilder_ == null) {
+        if (updateMask_ != null) {
+          updateMask_ =
+              com.google.protobuf.FieldMask.newBuilder(updateMask_).mergeFrom(value).buildPartial();
+        } else {
+          updateMask_ = value;
+        }
+        onChanged();
+      } else {
+        updateMaskBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The mask to control which fields get updated.
+     * 

+     *
+     * .google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder clearUpdateMask() {
+      if (updateMaskBuilder_ == null) {
+        updateMask_ = null;
+        onChanged();
+      } else {
+        updateMask_ = null;
+        updateMaskBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The mask to control which fields get updated.
+     * 

+     *
+     * .google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public com.google.protobuf.FieldMask.Builder getUpdateMaskBuilder() {
+
+      onChanged();
+      return getUpdateMaskFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The mask to control which fields get updated.
+     * 

+     *
+     * .google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder() {
+      if (updateMaskBuilder_ != null) {
+        return updateMaskBuilder_.getMessageOrBuilder();
+      } else {
+        return updateMask_ == null
+            ? com.google.protobuf.FieldMask.getDefaultInstance()
+            : updateMask_;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The mask to control which fields get updated.
+     * 

+     *
+     * .google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.FieldMask,
+            com.google.protobuf.FieldMask.Builder,
+            com.google.protobuf.FieldMaskOrBuilder>
+        getUpdateMaskFieldBuilder() {
+      if (updateMaskBuilder_ == null) {
+        updateMaskBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.protobuf.FieldMask,
+                com.google.protobuf.FieldMask.Builder,
+                com.google.protobuf.FieldMaskOrBuilder>(
+                getUpdateMask(), getParentForChildren(), isClean());
+        updateMask_ = null;
+      }
+      return updateMaskBuilder_;
+    }
+
+    private boolean allowLoadToDraftAndDiscardChanges_;
+    /**
+     *
+     *
+     * 
+     * Optional. This field is used to prevent accidental overwrite of the draft
+     * environment, which is an operation that cannot be undone. To confirm that
+     * the caller desires this overwrite, this field must be explicitly set to
+     * true when updating the draft environment (environment ID = `-`).
+     * 

+     *
+     * 
+     * bool allow_load_to_draft_and_discard_changes = 3 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     *
+     * @return The allowLoadToDraftAndDiscardChanges.
+     */
+    @java.lang.Override
+    public boolean getAllowLoadToDraftAndDiscardChanges() {
+      return allowLoadToDraftAndDiscardChanges_;
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. This field is used to prevent accidental overwrite of the draft
+     * environment, which is an operation that cannot be undone. To confirm that
+     * the caller desires this overwrite, this field must be explicitly set to
+     * true when updating the draft environment (environment ID = `-`).
+     * 

+     *
+     * 
+     * bool allow_load_to_draft_and_discard_changes = 3 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     *
+     * @param value The allowLoadToDraftAndDiscardChanges to set.
+     * @return This builder for chaining.
+     */
+    public Builder setAllowLoadToDraftAndDiscardChanges(boolean value) {
+
+      allowLoadToDraftAndDiscardChanges_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. This field is used to prevent accidental overwrite of the draft
+     * environment, which is an operation that cannot be undone. To confirm that
+     * the caller desires this overwrite, this field must be explicitly set to
+     * true when updating the draft environment (environment ID = `-`).
+     * 

+     *
+     * 
+     * bool allow_load_to_draft_and_discard_changes = 3 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearAllowLoadToDraftAndDiscardChanges() {
+
+      allowLoadToDraftAndDiscardChanges_ = false;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest)
+  private static final com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest
+      DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest();
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser PARSER =
+      new com.google.protobuf.AbstractParser() {
+        @java.lang.Override
+        public UpdateEnvironmentRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new UpdateEnvironmentRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/UpdateEnvironmentRequestOrBuilder.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/UpdateEnvironmentRequestOrBuilder.java
new file mode 100644
index 000000000..3744e3475
--- /dev/null
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/UpdateEnvironmentRequestOrBuilder.java
@@ -0,0 +1,122 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/v2beta1/environment.proto
+
+package com.google.cloud.dialogflow.v2beta1;
+
+public interface UpdateEnvironmentRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.v2beta1.UpdateEnvironmentRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * 
+   * Required. The environment to update.
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   *
+   * @return Whether the environment field is set.
+   */
+  boolean hasEnvironment();
+  /**
+   *
+   *
+   * 
+   * Required. The environment to update.
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   *
+   * @return The environment.
+   */
+  com.google.cloud.dialogflow.v2beta1.Environment getEnvironment();
+  /**
+   *
+   *
+   * 
+   * Required. The environment to update.
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.Environment environment = 1 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   */
+  com.google.cloud.dialogflow.v2beta1.EnvironmentOrBuilder getEnvironmentOrBuilder();
+
+  /**
+   *
+   *
+   * 
+   * Required. The mask to control which fields get updated.
+   * 

+   *
+   * .google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   *
+   * @return Whether the updateMask field is set.
+   */
+  boolean hasUpdateMask();
+  /**
+   *
+   *
+   * 
+   * Required. The mask to control which fields get updated.
+   * 

+   *
+   * .google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   *
+   * @return The updateMask.
+   */
+  com.google.protobuf.FieldMask getUpdateMask();
+  /**
+   *
+   *
+   * 
+   * Required. The mask to control which fields get updated.
+   * 

+   *
+   * .google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   */
+  com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder();
+
+  /**
+   *
+   *
+   * 
+   * Optional. This field is used to prevent accidental overwrite of the draft
+   * environment, which is an operation that cannot be undone. To confirm that
+   * the caller desires this overwrite, this field must be explicitly set to
+   * true when updating the draft environment (environment ID = `-`).
+   * 

+   *
+   * 
+   * bool allow_load_to_draft_and_discard_changes = 3 [(.google.api.field_behavior) = OPTIONAL];
+   * 
+   *
+   * @return The allowLoadToDraftAndDiscardChanges.
+   */
+  boolean getAllowLoadToDraftAndDiscardChanges();
+}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/UpdateFulfillmentRequest.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/UpdateFulfillmentRequest.java
new file mode 100644
index 000000000..dffb6b1d5
--- /dev/null
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/UpdateFulfillmentRequest.java
@@ -0,0 +1,1058 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/v2beta1/fulfillment.proto
+
+package com.google.cloud.dialogflow.v2beta1;
+
+/**
+ *
+ *
+ * 
+ * The request message for [Fulfillments.UpdateFulfillment][google.cloud.dialogflow.v2beta1.Fulfillments.UpdateFulfillment].
+ * 

+ *
+ * Protobuf type {@code google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest}
+ */
+public final class UpdateFulfillmentRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest)
+    UpdateFulfillmentRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use UpdateFulfillmentRequest.newBuilder() to construct.
+  private UpdateFulfillmentRequest(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+    super(builder);
+  }
+
+  private UpdateFulfillmentRequest() {}
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new UpdateFulfillmentRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private UpdateFulfillmentRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              com.google.cloud.dialogflow.v2beta1.Fulfillment.Builder subBuilder = null;
+              if (fulfillment_ != null) {
+                subBuilder = fulfillment_.toBuilder();
+              }
+              fulfillment_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.v2beta1.Fulfillment.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(fulfillment_);
+                fulfillment_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 18:
+            {
+              com.google.protobuf.FieldMask.Builder subBuilder = null;
+              if (updateMask_ != null) {
+                subBuilder = updateMask_.toBuilder();
+              }
+              updateMask_ =
+                  input.readMessage(com.google.protobuf.FieldMask.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(updateMask_);
+                updateMask_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.v2beta1.FulfillmentProto
+        .internal_static_google_cloud_dialogflow_v2beta1_UpdateFulfillmentRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.v2beta1.FulfillmentProto
+        .internal_static_google_cloud_dialogflow_v2beta1_UpdateFulfillmentRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest.class,
+            com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest.Builder.class);
+  }
+
+  public static final int FULFILLMENT_FIELD_NUMBER = 1;
+  private com.google.cloud.dialogflow.v2beta1.Fulfillment fulfillment_;
+  /**
+   *
+   *
+   * 
+   * Required. The fulfillment to update.
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.Fulfillment fulfillment = 1 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   *
+   * @return Whether the fulfillment field is set.
+   */
+  @java.lang.Override
+  public boolean hasFulfillment() {
+    return fulfillment_ != null;
+  }
+  /**
+   *
+   *
+   * 
+   * Required. The fulfillment to update.
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.Fulfillment fulfillment = 1 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   *
+   * @return The fulfillment.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.v2beta1.Fulfillment getFulfillment() {
+    return fulfillment_ == null
+        ? com.google.cloud.dialogflow.v2beta1.Fulfillment.getDefaultInstance()
+        : fulfillment_;
+  }
+  /**
+   *
+   *
+   * 
+   * Required. The fulfillment to update.
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.Fulfillment fulfillment = 1 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.v2beta1.FulfillmentOrBuilder getFulfillmentOrBuilder() {
+    return getFulfillment();
+  }
+
+  public static final int UPDATE_MASK_FIELD_NUMBER = 2;
+  private com.google.protobuf.FieldMask updateMask_;
+  /**
+   *
+   *
+   * 
+   * Required. The mask to control which fields get updated. If the mask is not
+   * present, all fields will be updated.
+   * 

+   *
+   * .google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   *
+   * @return Whether the updateMask field is set.
+   */
+  @java.lang.Override
+  public boolean hasUpdateMask() {
+    return updateMask_ != null;
+  }
+  /**
+   *
+   *
+   * 
+   * Required. The mask to control which fields get updated. If the mask is not
+   * present, all fields will be updated.
+   * 

+   *
+   * .google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   *
+   * @return The updateMask.
+   */
+  @java.lang.Override
+  public com.google.protobuf.FieldMask getUpdateMask() {
+    return updateMask_ == null ? com.google.protobuf.FieldMask.getDefaultInstance() : updateMask_;
+  }
+  /**
+   *
+   *
+   * 
+   * Required. The mask to control which fields get updated. If the mask is not
+   * present, all fields will be updated.
+   * 

+   *
+   * .google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   */
+  @java.lang.Override
+  public com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder() {
+    return getUpdateMask();
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (fulfillment_ != null) {
+      output.writeMessage(1, getFulfillment());
+    }
+    if (updateMask_ != null) {
+      output.writeMessage(2, getUpdateMask());
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (fulfillment_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getFulfillment());
+    }
+    if (updateMask_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getUpdateMask());
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest other =
+        (com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest) obj;
+
+    if (hasFulfillment() != other.hasFulfillment()) return false;
+    if (hasFulfillment()) {
+      if (!getFulfillment().equals(other.getFulfillment())) return false;
+    }
+    if (hasUpdateMask() != other.hasUpdateMask()) return false;
+    if (hasUpdateMask()) {
+      if (!getUpdateMask().equals(other.getUpdateMask())) return false;
+    }
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (hasFulfillment()) {
+      hash = (37 * hash) + FULFILLMENT_FIELD_NUMBER;
+      hash = (53 * hash) + getFulfillment().hashCode();
+    }
+    if (hasUpdateMask()) {
+      hash = (37 * hash) + UPDATE_MASK_FIELD_NUMBER;
+      hash = (53 * hash) + getUpdateMask().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * 
+   * The request message for [Fulfillments.UpdateFulfillment][google.cloud.dialogflow.v2beta1.Fulfillments.UpdateFulfillment].
+   * 

+   *
+   * Protobuf type {@code google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest)
+      com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.v2beta1.FulfillmentProto
+          .internal_static_google_cloud_dialogflow_v2beta1_UpdateFulfillmentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.v2beta1.FulfillmentProto
+          .internal_static_google_cloud_dialogflow_v2beta1_UpdateFulfillmentRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest.class,
+              com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      if (fulfillmentBuilder_ == null) {
+        fulfillment_ = null;
+      } else {
+        fulfillment_ = null;
+        fulfillmentBuilder_ = null;
+      }
+      if (updateMaskBuilder_ == null) {
+        updateMask_ = null;
+      } else {
+        updateMask_ = null;
+        updateMaskBuilder_ = null;
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.v2beta1.FulfillmentProto
+          .internal_static_google_cloud_dialogflow_v2beta1_UpdateFulfillmentRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest
+        getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest build() {
+      com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest buildPartial() {
+      com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest result =
+          new com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest(this);
+      if (fulfillmentBuilder_ == null) {
+        result.fulfillment_ = fulfillment_;
+      } else {
+        result.fulfillment_ = fulfillmentBuilder_.build();
+      }
+      if (updateMaskBuilder_ == null) {
+        result.updateMask_ = updateMask_;
+      } else {
+        result.updateMask_ = updateMaskBuilder_.build();
+      }
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest other) {
+      if (other
+          == com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest.getDefaultInstance())
+        return this;
+      if (other.hasFulfillment()) {
+        mergeFulfillment(other.getFulfillment());
+      }
+      if (other.hasUpdateMask()) {
+        mergeUpdateMask(other.getUpdateMask());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private com.google.cloud.dialogflow.v2beta1.Fulfillment fulfillment_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.v2beta1.Fulfillment,
+            com.google.cloud.dialogflow.v2beta1.Fulfillment.Builder,
+            com.google.cloud.dialogflow.v2beta1.FulfillmentOrBuilder>
+        fulfillmentBuilder_;
+    /**
+     *
+     *
+     * 
+     * Required. The fulfillment to update.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Fulfillment fulfillment = 1 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     *
+     * @return Whether the fulfillment field is set.
+     */
+    public boolean hasFulfillment() {
+      return fulfillmentBuilder_ != null || fulfillment_ != null;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The fulfillment to update.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Fulfillment fulfillment = 1 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     *
+     * @return The fulfillment.
+     */
+    public com.google.cloud.dialogflow.v2beta1.Fulfillment getFulfillment() {
+      if (fulfillmentBuilder_ == null) {
+        return fulfillment_ == null
+            ? com.google.cloud.dialogflow.v2beta1.Fulfillment.getDefaultInstance()
+            : fulfillment_;
+      } else {
+        return fulfillmentBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The fulfillment to update.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Fulfillment fulfillment = 1 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder setFulfillment(com.google.cloud.dialogflow.v2beta1.Fulfillment value) {
+      if (fulfillmentBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        fulfillment_ = value;
+        onChanged();
+      } else {
+        fulfillmentBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The fulfillment to update.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Fulfillment fulfillment = 1 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder setFulfillment(
+        com.google.cloud.dialogflow.v2beta1.Fulfillment.Builder builderForValue) {
+      if (fulfillmentBuilder_ == null) {
+        fulfillment_ = builderForValue.build();
+        onChanged();
+      } else {
+        fulfillmentBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The fulfillment to update.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Fulfillment fulfillment = 1 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder mergeFulfillment(com.google.cloud.dialogflow.v2beta1.Fulfillment value) {
+      if (fulfillmentBuilder_ == null) {
+        if (fulfillment_ != null) {
+          fulfillment_ =
+              com.google.cloud.dialogflow.v2beta1.Fulfillment.newBuilder(fulfillment_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          fulfillment_ = value;
+        }
+        onChanged();
+      } else {
+        fulfillmentBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The fulfillment to update.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Fulfillment fulfillment = 1 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder clearFulfillment() {
+      if (fulfillmentBuilder_ == null) {
+        fulfillment_ = null;
+        onChanged();
+      } else {
+        fulfillment_ = null;
+        fulfillmentBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The fulfillment to update.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Fulfillment fulfillment = 1 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public com.google.cloud.dialogflow.v2beta1.Fulfillment.Builder getFulfillmentBuilder() {
+
+      onChanged();
+      return getFulfillmentFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The fulfillment to update.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Fulfillment fulfillment = 1 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public com.google.cloud.dialogflow.v2beta1.FulfillmentOrBuilder getFulfillmentOrBuilder() {
+      if (fulfillmentBuilder_ != null) {
+        return fulfillmentBuilder_.getMessageOrBuilder();
+      } else {
+        return fulfillment_ == null
+            ? com.google.cloud.dialogflow.v2beta1.Fulfillment.getDefaultInstance()
+            : fulfillment_;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The fulfillment to update.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Fulfillment fulfillment = 1 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.v2beta1.Fulfillment,
+            com.google.cloud.dialogflow.v2beta1.Fulfillment.Builder,
+            com.google.cloud.dialogflow.v2beta1.FulfillmentOrBuilder>
+        getFulfillmentFieldBuilder() {
+      if (fulfillmentBuilder_ == null) {
+        fulfillmentBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.v2beta1.Fulfillment,
+                com.google.cloud.dialogflow.v2beta1.Fulfillment.Builder,
+                com.google.cloud.dialogflow.v2beta1.FulfillmentOrBuilder>(
+                getFulfillment(), getParentForChildren(), isClean());
+        fulfillment_ = null;
+      }
+      return fulfillmentBuilder_;
+    }
+
+    private com.google.protobuf.FieldMask updateMask_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.FieldMask,
+            com.google.protobuf.FieldMask.Builder,
+            com.google.protobuf.FieldMaskOrBuilder>
+        updateMaskBuilder_;
+    /**
+     *
+     *
+     * 
+     * Required. The mask to control which fields get updated. If the mask is not
+     * present, all fields will be updated.
+     * 

+     *
+     * .google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     *
+     * @return Whether the updateMask field is set.
+     */
+    public boolean hasUpdateMask() {
+      return updateMaskBuilder_ != null || updateMask_ != null;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The mask to control which fields get updated. If the mask is not
+     * present, all fields will be updated.
+     * 

+     *
+     * .google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     *
+     * @return The updateMask.
+     */
+    public com.google.protobuf.FieldMask getUpdateMask() {
+      if (updateMaskBuilder_ == null) {
+        return updateMask_ == null
+            ? com.google.protobuf.FieldMask.getDefaultInstance()
+            : updateMask_;
+      } else {
+        return updateMaskBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The mask to control which fields get updated. If the mask is not
+     * present, all fields will be updated.
+     * 

+     *
+     * .google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder setUpdateMask(com.google.protobuf.FieldMask value) {
+      if (updateMaskBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        updateMask_ = value;
+        onChanged();
+      } else {
+        updateMaskBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The mask to control which fields get updated. If the mask is not
+     * present, all fields will be updated.
+     * 

+     *
+     * .google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder setUpdateMask(com.google.protobuf.FieldMask.Builder builderForValue) {
+      if (updateMaskBuilder_ == null) {
+        updateMask_ = builderForValue.build();
+        onChanged();
+      } else {
+        updateMaskBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The mask to control which fields get updated. If the mask is not
+     * present, all fields will be updated.
+     * 

+     *
+     * .google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder mergeUpdateMask(com.google.protobuf.FieldMask value) {
+      if (updateMaskBuilder_ == null) {
+        if (updateMask_ != null) {
+          updateMask_ =
+              com.google.protobuf.FieldMask.newBuilder(updateMask_).mergeFrom(value).buildPartial();
+        } else {
+          updateMask_ = value;
+        }
+        onChanged();
+      } else {
+        updateMaskBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The mask to control which fields get updated. If the mask is not
+     * present, all fields will be updated.
+     * 

+     *
+     * .google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder clearUpdateMask() {
+      if (updateMaskBuilder_ == null) {
+        updateMask_ = null;
+        onChanged();
+      } else {
+        updateMask_ = null;
+        updateMaskBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The mask to control which fields get updated. If the mask is not
+     * present, all fields will be updated.
+     * 

+     *
+     * .google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public com.google.protobuf.FieldMask.Builder getUpdateMaskBuilder() {
+
+      onChanged();
+      return getUpdateMaskFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The mask to control which fields get updated. If the mask is not
+     * present, all fields will be updated.
+     * 

+     *
+     * .google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder() {
+      if (updateMaskBuilder_ != null) {
+        return updateMaskBuilder_.getMessageOrBuilder();
+      } else {
+        return updateMask_ == null
+            ? com.google.protobuf.FieldMask.getDefaultInstance()
+            : updateMask_;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The mask to control which fields get updated. If the mask is not
+     * present, all fields will be updated.
+     * 

+     *
+     * .google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.FieldMask,
+            com.google.protobuf.FieldMask.Builder,
+            com.google.protobuf.FieldMaskOrBuilder>
+        getUpdateMaskFieldBuilder() {
+      if (updateMaskBuilder_ == null) {
+        updateMaskBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.protobuf.FieldMask,
+                com.google.protobuf.FieldMask.Builder,
+                com.google.protobuf.FieldMaskOrBuilder>(
+                getUpdateMask(), getParentForChildren(), isClean());
+        updateMask_ = null;
+      }
+      return updateMaskBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest)
+  private static final com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest
+      DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest();
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser PARSER =
+      new com.google.protobuf.AbstractParser() {
+        @java.lang.Override
+        public UpdateFulfillmentRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new UpdateFulfillmentRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/UpdateFulfillmentRequestOrBuilder.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/UpdateFulfillmentRequestOrBuilder.java
new file mode 100644
index 000000000..c8a757661
--- /dev/null
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/UpdateFulfillmentRequestOrBuilder.java
@@ -0,0 +1,107 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/v2beta1/fulfillment.proto
+
+package com.google.cloud.dialogflow.v2beta1;
+
+public interface UpdateFulfillmentRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.v2beta1.UpdateFulfillmentRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * 
+   * Required. The fulfillment to update.
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.Fulfillment fulfillment = 1 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   *
+   * @return Whether the fulfillment field is set.
+   */
+  boolean hasFulfillment();
+  /**
+   *
+   *
+   * 
+   * Required. The fulfillment to update.
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.Fulfillment fulfillment = 1 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   *
+   * @return The fulfillment.
+   */
+  com.google.cloud.dialogflow.v2beta1.Fulfillment getFulfillment();
+  /**
+   *
+   *
+   * 
+   * Required. The fulfillment to update.
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.Fulfillment fulfillment = 1 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   */
+  com.google.cloud.dialogflow.v2beta1.FulfillmentOrBuilder getFulfillmentOrBuilder();
+
+  /**
+   *
+   *
+   * 
+   * Required. The mask to control which fields get updated. If the mask is not
+   * present, all fields will be updated.
+   * 

+   *
+   * .google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   *
+   * @return Whether the updateMask field is set.
+   */
+  boolean hasUpdateMask();
+  /**
+   *
+   *
+   * 
+   * Required. The mask to control which fields get updated. If the mask is not
+   * present, all fields will be updated.
+   * 

+   *
+   * .google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   *
+   * @return The updateMask.
+   */
+  com.google.protobuf.FieldMask getUpdateMask();
+  /**
+   *
+   *
+   * 
+   * Required. The mask to control which fields get updated. If the mask is not
+   * present, all fields will be updated.
+   * 

+   *
+   * .google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   */
+  com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder();
+}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/UpdateVersionRequest.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/UpdateVersionRequest.java
new file mode 100644
index 000000000..1a51519d7
--- /dev/null
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/UpdateVersionRequest.java
@@ -0,0 +1,1090 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/v2beta1/version.proto
+
+package com.google.cloud.dialogflow.v2beta1;
+
+/**
+ *
+ *
+ * 
+ * The request message for [Versions.UpdateVersion][google.cloud.dialogflow.v2beta1.Versions.UpdateVersion].
+ * 

+ *
+ * Protobuf type {@code google.cloud.dialogflow.v2beta1.UpdateVersionRequest}
+ */
+public final class UpdateVersionRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.v2beta1.UpdateVersionRequest)
+    UpdateVersionRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use UpdateVersionRequest.newBuilder() to construct.
+  private UpdateVersionRequest(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+    super(builder);
+  }
+
+  private UpdateVersionRequest() {}
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new UpdateVersionRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private UpdateVersionRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              com.google.cloud.dialogflow.v2beta1.Version.Builder subBuilder = null;
+              if (version_ != null) {
+                subBuilder = version_.toBuilder();
+              }
+              version_ =
+                  input.readMessage(
+                      com.google.cloud.dialogflow.v2beta1.Version.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(version_);
+                version_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 18:
+            {
+              com.google.protobuf.FieldMask.Builder subBuilder = null;
+              if (updateMask_ != null) {
+                subBuilder = updateMask_.toBuilder();
+              }
+              updateMask_ =
+                  input.readMessage(com.google.protobuf.FieldMask.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(updateMask_);
+                updateMask_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.v2beta1.VersionProto
+        .internal_static_google_cloud_dialogflow_v2beta1_UpdateVersionRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.v2beta1.VersionProto
+        .internal_static_google_cloud_dialogflow_v2beta1_UpdateVersionRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest.class,
+            com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest.Builder.class);
+  }
+
+  public static final int VERSION_FIELD_NUMBER = 1;
+  private com.google.cloud.dialogflow.v2beta1.Version version_;
+  /**
+   *
+   *
+   * 
+   * Required. The version to update.
+   * Supported formats:
+   * - `projects/<Project ID>/agent/versions/<Version ID>`
+   * - `projects/<Project ID>/locations/<Location ID>/agent/versions/<Version
+   *   ID>`
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.Version version = 1 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   *
+   * @return Whether the version field is set.
+   */
+  @java.lang.Override
+  public boolean hasVersion() {
+    return version_ != null;
+  }
+  /**
+   *
+   *
+   * 
+   * Required. The version to update.
+   * Supported formats:
+   * - `projects/<Project ID>/agent/versions/<Version ID>`
+   * - `projects/<Project ID>/locations/<Location ID>/agent/versions/<Version
+   *   ID>`
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.Version version = 1 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   *
+   * @return The version.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.v2beta1.Version getVersion() {
+    return version_ == null
+        ? com.google.cloud.dialogflow.v2beta1.Version.getDefaultInstance()
+        : version_;
+  }
+  /**
+   *
+   *
+   * 
+   * Required. The version to update.
+   * Supported formats:
+   * - `projects/<Project ID>/agent/versions/<Version ID>`
+   * - `projects/<Project ID>/locations/<Location ID>/agent/versions/<Version
+   *   ID>`
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.Version version = 1 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.v2beta1.VersionOrBuilder getVersionOrBuilder() {
+    return getVersion();
+  }
+
+  public static final int UPDATE_MASK_FIELD_NUMBER = 2;
+  private com.google.protobuf.FieldMask updateMask_;
+  /**
+   *
+   *
+   * 
+   * Required. The mask to control which fields get updated.
+   * 

+   *
+   * .google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   *
+   * @return Whether the updateMask field is set.
+   */
+  @java.lang.Override
+  public boolean hasUpdateMask() {
+    return updateMask_ != null;
+  }
+  /**
+   *
+   *
+   * 
+   * Required. The mask to control which fields get updated.
+   * 

+   *
+   * .google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   *
+   * @return The updateMask.
+   */
+  @java.lang.Override
+  public com.google.protobuf.FieldMask getUpdateMask() {
+    return updateMask_ == null ? com.google.protobuf.FieldMask.getDefaultInstance() : updateMask_;
+  }
+  /**
+   *
+   *
+   * 
+   * Required. The mask to control which fields get updated.
+   * 

+   *
+   * .google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   */
+  @java.lang.Override
+  public com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder() {
+    return getUpdateMask();
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (version_ != null) {
+      output.writeMessage(1, getVersion());
+    }
+    if (updateMask_ != null) {
+      output.writeMessage(2, getUpdateMask());
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (version_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getVersion());
+    }
+    if (updateMask_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getUpdateMask());
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest other =
+        (com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest) obj;
+
+    if (hasVersion() != other.hasVersion()) return false;
+    if (hasVersion()) {
+      if (!getVersion().equals(other.getVersion())) return false;
+    }
+    if (hasUpdateMask() != other.hasUpdateMask()) return false;
+    if (hasUpdateMask()) {
+      if (!getUpdateMask().equals(other.getUpdateMask())) return false;
+    }
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (hasVersion()) {
+      hash = (37 * hash) + VERSION_FIELD_NUMBER;
+      hash = (53 * hash) + getVersion().hashCode();
+    }
+    if (hasUpdateMask()) {
+      hash = (37 * hash) + UPDATE_MASK_FIELD_NUMBER;
+      hash = (53 * hash) + getUpdateMask().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * 
+   * The request message for [Versions.UpdateVersion][google.cloud.dialogflow.v2beta1.Versions.UpdateVersion].
+   * 

+   *
+   * Protobuf type {@code google.cloud.dialogflow.v2beta1.UpdateVersionRequest}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.v2beta1.UpdateVersionRequest)
+      com.google.cloud.dialogflow.v2beta1.UpdateVersionRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.v2beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_v2beta1_UpdateVersionRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.v2beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_v2beta1_UpdateVersionRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest.class,
+              com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      if (versionBuilder_ == null) {
+        version_ = null;
+      } else {
+        version_ = null;
+        versionBuilder_ = null;
+      }
+      if (updateMaskBuilder_ == null) {
+        updateMask_ = null;
+      } else {
+        updateMask_ = null;
+        updateMaskBuilder_ = null;
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.v2beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_v2beta1_UpdateVersionRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest build() {
+      com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest buildPartial() {
+      com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest result =
+          new com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest(this);
+      if (versionBuilder_ == null) {
+        result.version_ = version_;
+      } else {
+        result.version_ = versionBuilder_.build();
+      }
+      if (updateMaskBuilder_ == null) {
+        result.updateMask_ = updateMask_;
+      } else {
+        result.updateMask_ = updateMaskBuilder_.build();
+      }
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest) {
+        return mergeFrom((com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest other) {
+      if (other == com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest.getDefaultInstance())
+        return this;
+      if (other.hasVersion()) {
+        mergeVersion(other.getVersion());
+      }
+      if (other.hasUpdateMask()) {
+        mergeUpdateMask(other.getUpdateMask());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage =
+            (com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private com.google.cloud.dialogflow.v2beta1.Version version_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.v2beta1.Version,
+            com.google.cloud.dialogflow.v2beta1.Version.Builder,
+            com.google.cloud.dialogflow.v2beta1.VersionOrBuilder>
+        versionBuilder_;
+    /**
+     *
+     *
+     * 
+     * Required. The version to update.
+     * Supported formats:
+     * - `projects/<Project ID>/agent/versions/<Version ID>`
+     * - `projects/<Project ID>/locations/<Location ID>/agent/versions/<Version
+     *   ID>`
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Version version = 1 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     *
+     * @return Whether the version field is set.
+     */
+    public boolean hasVersion() {
+      return versionBuilder_ != null || version_ != null;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The version to update.
+     * Supported formats:
+     * - `projects/<Project ID>/agent/versions/<Version ID>`
+     * - `projects/<Project ID>/locations/<Location ID>/agent/versions/<Version
+     *   ID>`
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Version version = 1 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     *
+     * @return The version.
+     */
+    public com.google.cloud.dialogflow.v2beta1.Version getVersion() {
+      if (versionBuilder_ == null) {
+        return version_ == null
+            ? com.google.cloud.dialogflow.v2beta1.Version.getDefaultInstance()
+            : version_;
+      } else {
+        return versionBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The version to update.
+     * Supported formats:
+     * - `projects/<Project ID>/agent/versions/<Version ID>`
+     * - `projects/<Project ID>/locations/<Location ID>/agent/versions/<Version
+     *   ID>`
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Version version = 1 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder setVersion(com.google.cloud.dialogflow.v2beta1.Version value) {
+      if (versionBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        version_ = value;
+        onChanged();
+      } else {
+        versionBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The version to update.
+     * Supported formats:
+     * - `projects/<Project ID>/agent/versions/<Version ID>`
+     * - `projects/<Project ID>/locations/<Location ID>/agent/versions/<Version
+     *   ID>`
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Version version = 1 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder setVersion(com.google.cloud.dialogflow.v2beta1.Version.Builder builderForValue) {
+      if (versionBuilder_ == null) {
+        version_ = builderForValue.build();
+        onChanged();
+      } else {
+        versionBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The version to update.
+     * Supported formats:
+     * - `projects/<Project ID>/agent/versions/<Version ID>`
+     * - `projects/<Project ID>/locations/<Location ID>/agent/versions/<Version
+     *   ID>`
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Version version = 1 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder mergeVersion(com.google.cloud.dialogflow.v2beta1.Version value) {
+      if (versionBuilder_ == null) {
+        if (version_ != null) {
+          version_ =
+              com.google.cloud.dialogflow.v2beta1.Version.newBuilder(version_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          version_ = value;
+        }
+        onChanged();
+      } else {
+        versionBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The version to update.
+     * Supported formats:
+     * - `projects/<Project ID>/agent/versions/<Version ID>`
+     * - `projects/<Project ID>/locations/<Location ID>/agent/versions/<Version
+     *   ID>`
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Version version = 1 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder clearVersion() {
+      if (versionBuilder_ == null) {
+        version_ = null;
+        onChanged();
+      } else {
+        version_ = null;
+        versionBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The version to update.
+     * Supported formats:
+     * - `projects/<Project ID>/agent/versions/<Version ID>`
+     * - `projects/<Project ID>/locations/<Location ID>/agent/versions/<Version
+     *   ID>`
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Version version = 1 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public com.google.cloud.dialogflow.v2beta1.Version.Builder getVersionBuilder() {
+
+      onChanged();
+      return getVersionFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The version to update.
+     * Supported formats:
+     * - `projects/<Project ID>/agent/versions/<Version ID>`
+     * - `projects/<Project ID>/locations/<Location ID>/agent/versions/<Version
+     *   ID>`
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Version version = 1 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public com.google.cloud.dialogflow.v2beta1.VersionOrBuilder getVersionOrBuilder() {
+      if (versionBuilder_ != null) {
+        return versionBuilder_.getMessageOrBuilder();
+      } else {
+        return version_ == null
+            ? com.google.cloud.dialogflow.v2beta1.Version.getDefaultInstance()
+            : version_;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The version to update.
+     * Supported formats:
+     * - `projects/<Project ID>/agent/versions/<Version ID>`
+     * - `projects/<Project ID>/locations/<Location ID>/agent/versions/<Version
+     *   ID>`
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Version version = 1 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.dialogflow.v2beta1.Version,
+            com.google.cloud.dialogflow.v2beta1.Version.Builder,
+            com.google.cloud.dialogflow.v2beta1.VersionOrBuilder>
+        getVersionFieldBuilder() {
+      if (versionBuilder_ == null) {
+        versionBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.dialogflow.v2beta1.Version,
+                com.google.cloud.dialogflow.v2beta1.Version.Builder,
+                com.google.cloud.dialogflow.v2beta1.VersionOrBuilder>(
+                getVersion(), getParentForChildren(), isClean());
+        version_ = null;
+      }
+      return versionBuilder_;
+    }
+
+    private com.google.protobuf.FieldMask updateMask_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.FieldMask,
+            com.google.protobuf.FieldMask.Builder,
+            com.google.protobuf.FieldMaskOrBuilder>
+        updateMaskBuilder_;
+    /**
+     *
+     *
+     * 
+     * Required. The mask to control which fields get updated.
+     * 

+     *
+     * .google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     *
+     * @return Whether the updateMask field is set.
+     */
+    public boolean hasUpdateMask() {
+      return updateMaskBuilder_ != null || updateMask_ != null;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The mask to control which fields get updated.
+     * 

+     *
+     * .google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     *
+     * @return The updateMask.
+     */
+    public com.google.protobuf.FieldMask getUpdateMask() {
+      if (updateMaskBuilder_ == null) {
+        return updateMask_ == null
+            ? com.google.protobuf.FieldMask.getDefaultInstance()
+            : updateMask_;
+      } else {
+        return updateMaskBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The mask to control which fields get updated.
+     * 

+     *
+     * .google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder setUpdateMask(com.google.protobuf.FieldMask value) {
+      if (updateMaskBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        updateMask_ = value;
+        onChanged();
+      } else {
+        updateMaskBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The mask to control which fields get updated.
+     * 

+     *
+     * .google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder setUpdateMask(com.google.protobuf.FieldMask.Builder builderForValue) {
+      if (updateMaskBuilder_ == null) {
+        updateMask_ = builderForValue.build();
+        onChanged();
+      } else {
+        updateMaskBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The mask to control which fields get updated.
+     * 

+     *
+     * .google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder mergeUpdateMask(com.google.protobuf.FieldMask value) {
+      if (updateMaskBuilder_ == null) {
+        if (updateMask_ != null) {
+          updateMask_ =
+              com.google.protobuf.FieldMask.newBuilder(updateMask_).mergeFrom(value).buildPartial();
+        } else {
+          updateMask_ = value;
+        }
+        onChanged();
+      } else {
+        updateMaskBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The mask to control which fields get updated.
+     * 

+     *
+     * .google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder clearUpdateMask() {
+      if (updateMaskBuilder_ == null) {
+        updateMask_ = null;
+        onChanged();
+      } else {
+        updateMask_ = null;
+        updateMaskBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The mask to control which fields get updated.
+     * 

+     *
+     * .google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public com.google.protobuf.FieldMask.Builder getUpdateMaskBuilder() {
+
+      onChanged();
+      return getUpdateMaskFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The mask to control which fields get updated.
+     * 

+     *
+     * .google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder() {
+      if (updateMaskBuilder_ != null) {
+        return updateMaskBuilder_.getMessageOrBuilder();
+      } else {
+        return updateMask_ == null
+            ? com.google.protobuf.FieldMask.getDefaultInstance()
+            : updateMask_;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The mask to control which fields get updated.
+     * 

+     *
+     * .google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.FieldMask,
+            com.google.protobuf.FieldMask.Builder,
+            com.google.protobuf.FieldMaskOrBuilder>
+        getUpdateMaskFieldBuilder() {
+      if (updateMaskBuilder_ == null) {
+        updateMaskBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.protobuf.FieldMask,
+                com.google.protobuf.FieldMask.Builder,
+                com.google.protobuf.FieldMaskOrBuilder>(
+                getUpdateMask(), getParentForChildren(), isClean());
+        updateMask_ = null;
+      }
+      return updateMaskBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.v2beta1.UpdateVersionRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.v2beta1.UpdateVersionRequest)
+  private static final com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest();
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser PARSER =
+      new com.google.protobuf.AbstractParser() {
+        @java.lang.Override
+        public UpdateVersionRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new UpdateVersionRequest(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.v2beta1.UpdateVersionRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/UpdateVersionRequestOrBuilder.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/UpdateVersionRequestOrBuilder.java
new file mode 100644
index 000000000..7701f667c
--- /dev/null
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/UpdateVersionRequestOrBuilder.java
@@ -0,0 +1,116 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/v2beta1/version.proto
+
+package com.google.cloud.dialogflow.v2beta1;
+
+public interface UpdateVersionRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.v2beta1.UpdateVersionRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * 
+   * Required. The version to update.
+   * Supported formats:
+   * - `projects/<Project ID>/agent/versions/<Version ID>`
+   * - `projects/<Project ID>/locations/<Location ID>/agent/versions/<Version
+   *   ID>`
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.Version version = 1 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   *
+   * @return Whether the version field is set.
+   */
+  boolean hasVersion();
+  /**
+   *
+   *
+   * 
+   * Required. The version to update.
+   * Supported formats:
+   * - `projects/<Project ID>/agent/versions/<Version ID>`
+   * - `projects/<Project ID>/locations/<Location ID>/agent/versions/<Version
+   *   ID>`
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.Version version = 1 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   *
+   * @return The version.
+   */
+  com.google.cloud.dialogflow.v2beta1.Version getVersion();
+  /**
+   *
+   *
+   * 
+   * Required. The version to update.
+   * Supported formats:
+   * - `projects/<Project ID>/agent/versions/<Version ID>`
+   * - `projects/<Project ID>/locations/<Location ID>/agent/versions/<Version
+   *   ID>`
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.Version version = 1 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   */
+  com.google.cloud.dialogflow.v2beta1.VersionOrBuilder getVersionOrBuilder();
+
+  /**
+   *
+   *
+   * 
+   * Required. The mask to control which fields get updated.
+   * 

+   *
+   * .google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   *
+   * @return Whether the updateMask field is set.
+   */
+  boolean hasUpdateMask();
+  /**
+   *
+   *
+   * 
+   * Required. The mask to control which fields get updated.
+   * 

+   *
+   * .google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   *
+   * @return The updateMask.
+   */
+  com.google.protobuf.FieldMask getUpdateMask();
+  /**
+   *
+   *
+   * 
+   * Required. The mask to control which fields get updated.
+   * 

+   *
+   * .google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   */
+  com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder();
+}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/Version.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/Version.java
new file mode 100644
index 000000000..09ca12f91
--- /dev/null
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/Version.java
@@ -0,0 +1,1624 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/v2beta1/version.proto
+
+package com.google.cloud.dialogflow.v2beta1;
+
+/**
+ *
+ *
+ * 
+ * You can create multiple versions of your agent and publish them to separate
+ * environments.
+ * When you edit an agent, you are editing the draft agent. At any point, you
+ * can save the draft agent as an agent version, which is an immutable snapshot
+ * of your agent.
+ * When you save the draft agent, it is published to the default environment.
+ * When you create agent versions, you can publish them to custom environments.
+ * You can create a variety of custom environments for:
+ * - testing
+ * - development
+ * - production
+ * - etc.
+ * For more information, see the [versions and environments
+ * guide](https://cloud.google.com/dialogflow/docs/agents-versions).
+ * 

+ *
+ * Protobuf type {@code google.cloud.dialogflow.v2beta1.Version}
+ */
+public final class Version extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.v2beta1.Version)
+    VersionOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use Version.newBuilder() to construct.
+  private Version(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+    super(builder);
+  }
+
+  private Version() {
+    name_ = "";
+    description_ = "";
+    status_ = 0;
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new Version();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  private Version(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              name_ = s;
+              break;
+            }
+          case 18:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              description_ = s;
+              break;
+            }
+          case 24:
+            {
+              versionNumber_ = input.readInt32();
+              break;
+            }
+          case 34:
+            {
+              com.google.protobuf.Timestamp.Builder subBuilder = null;
+              if (createTime_ != null) {
+                subBuilder = createTime_.toBuilder();
+              }
+              createTime_ =
+                  input.readMessage(com.google.protobuf.Timestamp.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(createTime_);
+                createTime_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+          case 48:
+            {
+              int rawValue = input.readEnum();
+
+              status_ = rawValue;
+              break;
+            }
+          default:
+            {
+              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.dialogflow.v2beta1.VersionProto
+        .internal_static_google_cloud_dialogflow_v2beta1_Version_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.dialogflow.v2beta1.VersionProto
+        .internal_static_google_cloud_dialogflow_v2beta1_Version_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.dialogflow.v2beta1.Version.class,
+            com.google.cloud.dialogflow.v2beta1.Version.Builder.class);
+  }
+
+  /**
+   *
+   *
+   * 
+   * The status of a version.
+   * 

+   *
+   * Protobuf enum {@code google.cloud.dialogflow.v2beta1.Version.VersionStatus}
+   */
+  public enum VersionStatus implements com.google.protobuf.ProtocolMessageEnum {
+    /**
+     *
+     *
+     * 
+     * Not specified. This value is not used.
+     * 

+     *
+     * VERSION_STATUS_UNSPECIFIED = 0;
+     */
+    VERSION_STATUS_UNSPECIFIED(0),
+    /**
+     *
+     *
+     * 
+     * Version is not ready to serve (e.g. training is in progress).
+     * 

+     *
+     * IN_PROGRESS = 1;
+     */
+    IN_PROGRESS(1),
+    /**
+     *
+     *
+     * 
+     * Version is ready to serve.
+     * 

+     *
+     * READY = 2;
+     */
+    READY(2),
+    /**
+     *
+     *
+     * 
+     * Version training failed.
+     * 

+     *
+     * FAILED = 3;
+     */
+    FAILED(3),
+    UNRECOGNIZED(-1),
+    ;
+
+    /**
+     *
+     *
+     * 
+     * Not specified. This value is not used.
+     * 

+     *
+     * VERSION_STATUS_UNSPECIFIED = 0;
+     */
+    public static final int VERSION_STATUS_UNSPECIFIED_VALUE = 0;
+    /**
+     *
+     *
+     * 
+     * Version is not ready to serve (e.g. training is in progress).
+     * 

+     *
+     * IN_PROGRESS = 1;
+     */
+    public static final int IN_PROGRESS_VALUE = 1;
+    /**
+     *
+     *
+     * 
+     * Version is ready to serve.
+     * 

+     *
+     * READY = 2;
+     */
+    public static final int READY_VALUE = 2;
+    /**
+     *
+     *
+     * 
+     * Version training failed.
+     * 

+     *
+     * FAILED = 3;
+     */
+    public static final int FAILED_VALUE = 3;
+
+    public final int getNumber() {
+      if (this == UNRECOGNIZED) {
+        throw new java.lang.IllegalArgumentException(
+            "Can't get the number of an unknown enum value.");
+      }
+      return value;
+    }
+
+    /**
+     * @param value The numeric wire value of the corresponding enum entry.
+     * @return The enum associated with the given numeric wire value.
+     * @deprecated Use {@link #forNumber(int)} instead.
+     */
+    @java.lang.Deprecated
+    public static VersionStatus valueOf(int value) {
+      return forNumber(value);
+    }
+
+    /**
+     * @param value The numeric wire value of the corresponding enum entry.
+     * @return The enum associated with the given numeric wire value.
+     */
+    public static VersionStatus forNumber(int value) {
+      switch (value) {
+        case 0:
+          return VERSION_STATUS_UNSPECIFIED;
+        case 1:
+          return IN_PROGRESS;
+        case 2:
+          return READY;
+        case 3:
+          return FAILED;
+        default:
+          return null;
+      }
+    }
+
+    public static com.google.protobuf.Internal.EnumLiteMap internalGetValueMap() {
+      return internalValueMap;
+    }
+
+    private static final com.google.protobuf.Internal.EnumLiteMap internalValueMap =
+        new com.google.protobuf.Internal.EnumLiteMap() {
+          public VersionStatus findValueByNumber(int number) {
+            return VersionStatus.forNumber(number);
+          }
+        };
+
+    public final com.google.protobuf.Descriptors.EnumValueDescriptor getValueDescriptor() {
+      if (this == UNRECOGNIZED) {
+        throw new java.lang.IllegalStateException(
+            "Can't get the descriptor of an unrecognized enum value.");
+      }
+      return getDescriptor().getValues().get(ordinal());
+    }
+
+    public final com.google.protobuf.Descriptors.EnumDescriptor getDescriptorForType() {
+      return getDescriptor();
+    }
+
+    public static final com.google.protobuf.Descriptors.EnumDescriptor getDescriptor() {
+      return com.google.cloud.dialogflow.v2beta1.Version.getDescriptor().getEnumTypes().get(0);
+    }
+
+    private static final VersionStatus[] VALUES = values();
+
+    public static VersionStatus valueOf(com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
+      if (desc.getType() != getDescriptor()) {
+        throw new java.lang.IllegalArgumentException("EnumValueDescriptor is not for this type.");
+      }
+      if (desc.getIndex() == -1) {
+        return UNRECOGNIZED;
+      }
+      return VALUES[desc.getIndex()];
+    }
+
+    private final int value;
+
+    private VersionStatus(int value) {
+      this.value = value;
+    }
+
+    // @@protoc_insertion_point(enum_scope:google.cloud.dialogflow.v2beta1.Version.VersionStatus)
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   *
+   *
+   * 
+   * Output only. The unique identifier of this agent version.
+   * Supported formats:
+   * - `projects/<Project ID>/agent/versions/<Version ID>`
+   * - `projects/<Project ID>/locations/<Location ID>/agent/versions/<Version
+   *   ID>`
+   * 

+   *
+   * string name = 1 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   *
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * 
+   * Output only. The unique identifier of this agent version.
+   * Supported formats:
+   * - `projects/<Project ID>/agent/versions/<Version ID>`
+   * - `projects/<Project ID>/locations/<Location ID>/agent/versions/<Version
+   *   ID>`
+   * 

+   *
+   * string name = 1 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   *
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int DESCRIPTION_FIELD_NUMBER = 2;
+  private volatile java.lang.Object description_;
+  /**
+   *
+   *
+   * 
+   * Optional. The developer-provided description of this version.
+   * 

+   *
+   * string description = 2 [(.google.api.field_behavior) = OPTIONAL];
+   *
+   * @return The description.
+   */
+  @java.lang.Override
+  public java.lang.String getDescription() {
+    java.lang.Object ref = description_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      description_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * 
+   * Optional. The developer-provided description of this version.
+   * 

+   *
+   * string description = 2 [(.google.api.field_behavior) = OPTIONAL];
+   *
+   * @return The bytes for description.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getDescriptionBytes() {
+    java.lang.Object ref = description_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      description_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int VERSION_NUMBER_FIELD_NUMBER = 3;
+  private int versionNumber_;
+  /**
+   *
+   *
+   * 
+   * Output only. The sequential number of this version. This field is read-only which means
+   * it cannot be set by create and update methods.
+   * 

+   *
+   * int32 version_number = 3 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   *
+   * @return The versionNumber.
+   */
+  @java.lang.Override
+  public int getVersionNumber() {
+    return versionNumber_;
+  }
+
+  public static final int CREATE_TIME_FIELD_NUMBER = 4;
+  private com.google.protobuf.Timestamp createTime_;
+  /**
+   *
+   *
+   * 
+   * Output only. The creation time of this version. This field is read-only, i.e., it cannot
+   * be set by create and update methods.
+   * 

+   *
+   * .google.protobuf.Timestamp create_time = 4 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * 
+   *
+   * @return Whether the createTime field is set.
+   */
+  @java.lang.Override
+  public boolean hasCreateTime() {
+    return createTime_ != null;
+  }
+  /**
+   *
+   *
+   * 
+   * Output only. The creation time of this version. This field is read-only, i.e., it cannot
+   * be set by create and update methods.
+   * 

+   *
+   * .google.protobuf.Timestamp create_time = 4 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * 
+   *
+   * @return The createTime.
+   */
+  @java.lang.Override
+  public com.google.protobuf.Timestamp getCreateTime() {
+    return createTime_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : createTime_;
+  }
+  /**
+   *
+   *
+   * 
+   * Output only. The creation time of this version. This field is read-only, i.e., it cannot
+   * be set by create and update methods.
+   * 

+   *
+   * .google.protobuf.Timestamp create_time = 4 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * 
+   */
+  @java.lang.Override
+  public com.google.protobuf.TimestampOrBuilder getCreateTimeOrBuilder() {
+    return getCreateTime();
+  }
+
+  public static final int STATUS_FIELD_NUMBER = 6;
+  private int status_;
+  /**
+   *
+   *
+   * 
+   * Output only. The status of this version. This field is read-only and cannot be set by
+   * create and update methods.
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.Version.VersionStatus status = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * 
+   *
+   * @return The enum numeric value on the wire for status.
+   */
+  @java.lang.Override
+  public int getStatusValue() {
+    return status_;
+  }
+  /**
+   *
+   *
+   * 
+   * Output only. The status of this version. This field is read-only and cannot be set by
+   * create and update methods.
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.Version.VersionStatus status = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * 
+   *
+   * @return The status.
+   */
+  @java.lang.Override
+  public com.google.cloud.dialogflow.v2beta1.Version.VersionStatus getStatus() {
+    @SuppressWarnings("deprecation")
+    com.google.cloud.dialogflow.v2beta1.Version.VersionStatus result =
+        com.google.cloud.dialogflow.v2beta1.Version.VersionStatus.valueOf(status_);
+    return result == null
+        ? com.google.cloud.dialogflow.v2beta1.Version.VersionStatus.UNRECOGNIZED
+        : result;
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!getNameBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    if (!getDescriptionBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, description_);
+    }
+    if (versionNumber_ != 0) {
+      output.writeInt32(3, versionNumber_);
+    }
+    if (createTime_ != null) {
+      output.writeMessage(4, getCreateTime());
+    }
+    if (status_
+        != com.google.cloud.dialogflow.v2beta1.Version.VersionStatus.VERSION_STATUS_UNSPECIFIED
+            .getNumber()) {
+      output.writeEnum(6, status_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!getNameBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    if (!getDescriptionBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, description_);
+    }
+    if (versionNumber_ != 0) {
+      size += com.google.protobuf.CodedOutputStream.computeInt32Size(3, versionNumber_);
+    }
+    if (createTime_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(4, getCreateTime());
+    }
+    if (status_
+        != com.google.cloud.dialogflow.v2beta1.Version.VersionStatus.VERSION_STATUS_UNSPECIFIED
+            .getNumber()) {
+      size += com.google.protobuf.CodedOutputStream.computeEnumSize(6, status_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.dialogflow.v2beta1.Version)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.dialogflow.v2beta1.Version other =
+        (com.google.cloud.dialogflow.v2beta1.Version) obj;
+
+    if (!getName().equals(other.getName())) return false;
+    if (!getDescription().equals(other.getDescription())) return false;
+    if (getVersionNumber() != other.getVersionNumber()) return false;
+    if (hasCreateTime() != other.hasCreateTime()) return false;
+    if (hasCreateTime()) {
+      if (!getCreateTime().equals(other.getCreateTime())) return false;
+    }
+    if (status_ != other.status_) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (37 * hash) + DESCRIPTION_FIELD_NUMBER;
+    hash = (53 * hash) + getDescription().hashCode();
+    hash = (37 * hash) + VERSION_NUMBER_FIELD_NUMBER;
+    hash = (53 * hash) + getVersionNumber();
+    if (hasCreateTime()) {
+      hash = (37 * hash) + CREATE_TIME_FIELD_NUMBER;
+      hash = (53 * hash) + getCreateTime().hashCode();
+    }
+    hash = (37 * hash) + STATUS_FIELD_NUMBER;
+    hash = (53 * hash) + status_;
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.Version parseFrom(java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.Version parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.Version parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.Version parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.Version parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.Version parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.Version parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.Version parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.Version parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.Version parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.Version parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.Version parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(com.google.cloud.dialogflow.v2beta1.Version prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * 
+   * You can create multiple versions of your agent and publish them to separate
+   * environments.
+   * When you edit an agent, you are editing the draft agent. At any point, you
+   * can save the draft agent as an agent version, which is an immutable snapshot
+   * of your agent.
+   * When you save the draft agent, it is published to the default environment.
+   * When you create agent versions, you can publish them to custom environments.
+   * You can create a variety of custom environments for:
+   * - testing
+   * - development
+   * - production
+   * - etc.
+   * For more information, see the [versions and environments
+   * guide](https://cloud.google.com/dialogflow/docs/agents-versions).
+   * 

+   *
+   * Protobuf type {@code google.cloud.dialogflow.v2beta1.Version}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.dialogflow.v2beta1.Version)
+      com.google.cloud.dialogflow.v2beta1.VersionOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.dialogflow.v2beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_v2beta1_Version_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.dialogflow.v2beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_v2beta1_Version_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.dialogflow.v2beta1.Version.class,
+              com.google.cloud.dialogflow.v2beta1.Version.Builder.class);
+    }
+
+    // Construct using com.google.cloud.dialogflow.v2beta1.Version.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      description_ = "";
+
+      versionNumber_ = 0;
+
+      if (createTimeBuilder_ == null) {
+        createTime_ = null;
+      } else {
+        createTime_ = null;
+        createTimeBuilder_ = null;
+      }
+      status_ = 0;
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.dialogflow.v2beta1.VersionProto
+          .internal_static_google_cloud_dialogflow_v2beta1_Version_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.Version getDefaultInstanceForType() {
+      return com.google.cloud.dialogflow.v2beta1.Version.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.Version build() {
+      com.google.cloud.dialogflow.v2beta1.Version result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.Version buildPartial() {
+      com.google.cloud.dialogflow.v2beta1.Version result =
+          new com.google.cloud.dialogflow.v2beta1.Version(this);
+      result.name_ = name_;
+      result.description_ = description_;
+      result.versionNumber_ = versionNumber_;
+      if (createTimeBuilder_ == null) {
+        result.createTime_ = createTime_;
+      } else {
+        result.createTime_ = createTimeBuilder_.build();
+      }
+      result.status_ = status_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.dialogflow.v2beta1.Version) {
+        return mergeFrom((com.google.cloud.dialogflow.v2beta1.Version) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.dialogflow.v2beta1.Version other) {
+      if (other == com.google.cloud.dialogflow.v2beta1.Version.getDefaultInstance()) return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      if (!other.getDescription().isEmpty()) {
+        description_ = other.description_;
+        onChanged();
+      }
+      if (other.getVersionNumber() != 0) {
+        setVersionNumber(other.getVersionNumber());
+      }
+      if (other.hasCreateTime()) {
+        mergeCreateTime(other.getCreateTime());
+      }
+      if (other.status_ != 0) {
+        setStatusValue(other.getStatusValue());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.dialogflow.v2beta1.Version parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.dialogflow.v2beta1.Version) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     *
+     *
+     * 
+     * Output only. The unique identifier of this agent version.
+     * Supported formats:
+     * - `projects/<Project ID>/agent/versions/<Version ID>`
+     * - `projects/<Project ID>/locations/<Location ID>/agent/versions/<Version
+     *   ID>`
+     * 

+     *
+     * string name = 1 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     *
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Output only. The unique identifier of this agent version.
+     * Supported formats:
+     * - `projects/<Project ID>/agent/versions/<Version ID>`
+     * - `projects/<Project ID>/locations/<Location ID>/agent/versions/<Version
+     *   ID>`
+     * 

+     *
+     * string name = 1 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     *
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Output only. The unique identifier of this agent version.
+     * Supported formats:
+     * - `projects/<Project ID>/agent/versions/<Version ID>`
+     * - `projects/<Project ID>/locations/<Location ID>/agent/versions/<Version
+     *   ID>`
+     * 

+     *
+     * string name = 1 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     *
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Output only. The unique identifier of this agent version.
+     * Supported formats:
+     * - `projects/<Project ID>/agent/versions/<Version ID>`
+     * - `projects/<Project ID>/locations/<Location ID>/agent/versions/<Version
+     *   ID>`
+     * 

+     *
+     * string name = 1 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Output only. The unique identifier of this agent version.
+     * Supported formats:
+     * - `projects/<Project ID>/agent/versions/<Version ID>`
+     * - `projects/<Project ID>/locations/<Location ID>/agent/versions/<Version
+     *   ID>`
+     * 

+     *
+     * string name = 1 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     *
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object description_ = "";
+    /**
+     *
+     *
+     * 
+     * Optional. The developer-provided description of this version.
+     * 

+     *
+     * string description = 2 [(.google.api.field_behavior) = OPTIONAL];
+     *
+     * @return The description.
+     */
+    public java.lang.String getDescription() {
+      java.lang.Object ref = description_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        description_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. The developer-provided description of this version.
+     * 

+     *
+     * string description = 2 [(.google.api.field_behavior) = OPTIONAL];
+     *
+     * @return The bytes for description.
+     */
+    public com.google.protobuf.ByteString getDescriptionBytes() {
+      java.lang.Object ref = description_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        description_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. The developer-provided description of this version.
+     * 

+     *
+     * string description = 2 [(.google.api.field_behavior) = OPTIONAL];
+     *
+     * @param value The description to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDescription(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      description_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. The developer-provided description of this version.
+     * 

+     *
+     * string description = 2 [(.google.api.field_behavior) = OPTIONAL];
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearDescription() {
+
+      description_ = getDefaultInstance().getDescription();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. The developer-provided description of this version.
+     * 

+     *
+     * string description = 2 [(.google.api.field_behavior) = OPTIONAL];
+     *
+     * @param value The bytes for description to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDescriptionBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      description_ = value;
+      onChanged();
+      return this;
+    }
+
+    private int versionNumber_;
+    /**
+     *
+     *
+     * 
+     * Output only. The sequential number of this version. This field is read-only which means
+     * it cannot be set by create and update methods.
+     * 

+     *
+     * int32 version_number = 3 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     *
+     * @return The versionNumber.
+     */
+    @java.lang.Override
+    public int getVersionNumber() {
+      return versionNumber_;
+    }
+    /**
+     *
+     *
+     * 
+     * Output only. The sequential number of this version. This field is read-only which means
+     * it cannot be set by create and update methods.
+     * 

+     *
+     * int32 version_number = 3 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     *
+     * @param value The versionNumber to set.
+     * @return This builder for chaining.
+     */
+    public Builder setVersionNumber(int value) {
+
+      versionNumber_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Output only. The sequential number of this version. This field is read-only which means
+     * it cannot be set by create and update methods.
+     * 

+     *
+     * int32 version_number = 3 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearVersionNumber() {
+
+      versionNumber_ = 0;
+      onChanged();
+      return this;
+    }
+
+    private com.google.protobuf.Timestamp createTime_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.Timestamp,
+            com.google.protobuf.Timestamp.Builder,
+            com.google.protobuf.TimestampOrBuilder>
+        createTimeBuilder_;
+    /**
+     *
+     *
+     * 
+     * Output only. The creation time of this version. This field is read-only, i.e., it cannot
+     * be set by create and update methods.
+     * 

+     *
+     * 
+     * .google.protobuf.Timestamp create_time = 4 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * 
+     *
+     * @return Whether the createTime field is set.
+     */
+    public boolean hasCreateTime() {
+      return createTimeBuilder_ != null || createTime_ != null;
+    }
+    /**
+     *
+     *
+     * 
+     * Output only. The creation time of this version. This field is read-only, i.e., it cannot
+     * be set by create and update methods.
+     * 

+     *
+     * 
+     * .google.protobuf.Timestamp create_time = 4 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * 
+     *
+     * @return The createTime.
+     */
+    public com.google.protobuf.Timestamp getCreateTime() {
+      if (createTimeBuilder_ == null) {
+        return createTime_ == null
+            ? com.google.protobuf.Timestamp.getDefaultInstance()
+            : createTime_;
+      } else {
+        return createTimeBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Output only. The creation time of this version. This field is read-only, i.e., it cannot
+     * be set by create and update methods.
+     * 

+     *
+     * 
+     * .google.protobuf.Timestamp create_time = 4 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * 
+     */
+    public Builder setCreateTime(com.google.protobuf.Timestamp value) {
+      if (createTimeBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        createTime_ = value;
+        onChanged();
+      } else {
+        createTimeBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Output only. The creation time of this version. This field is read-only, i.e., it cannot
+     * be set by create and update methods.
+     * 

+     *
+     * 
+     * .google.protobuf.Timestamp create_time = 4 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * 
+     */
+    public Builder setCreateTime(com.google.protobuf.Timestamp.Builder builderForValue) {
+      if (createTimeBuilder_ == null) {
+        createTime_ = builderForValue.build();
+        onChanged();
+      } else {
+        createTimeBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Output only. The creation time of this version. This field is read-only, i.e., it cannot
+     * be set by create and update methods.
+     * 

+     *
+     * 
+     * .google.protobuf.Timestamp create_time = 4 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * 
+     */
+    public Builder mergeCreateTime(com.google.protobuf.Timestamp value) {
+      if (createTimeBuilder_ == null) {
+        if (createTime_ != null) {
+          createTime_ =
+              com.google.protobuf.Timestamp.newBuilder(createTime_).mergeFrom(value).buildPartial();
+        } else {
+          createTime_ = value;
+        }
+        onChanged();
+      } else {
+        createTimeBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Output only. The creation time of this version. This field is read-only, i.e., it cannot
+     * be set by create and update methods.
+     * 

+     *
+     * 
+     * .google.protobuf.Timestamp create_time = 4 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * 
+     */
+    public Builder clearCreateTime() {
+      if (createTimeBuilder_ == null) {
+        createTime_ = null;
+        onChanged();
+      } else {
+        createTime_ = null;
+        createTimeBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Output only. The creation time of this version. This field is read-only, i.e., it cannot
+     * be set by create and update methods.
+     * 

+     *
+     * 
+     * .google.protobuf.Timestamp create_time = 4 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * 
+     */
+    public com.google.protobuf.Timestamp.Builder getCreateTimeBuilder() {
+
+      onChanged();
+      return getCreateTimeFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * 
+     * Output only. The creation time of this version. This field is read-only, i.e., it cannot
+     * be set by create and update methods.
+     * 

+     *
+     * 
+     * .google.protobuf.Timestamp create_time = 4 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * 
+     */
+    public com.google.protobuf.TimestampOrBuilder getCreateTimeOrBuilder() {
+      if (createTimeBuilder_ != null) {
+        return createTimeBuilder_.getMessageOrBuilder();
+      } else {
+        return createTime_ == null
+            ? com.google.protobuf.Timestamp.getDefaultInstance()
+            : createTime_;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Output only. The creation time of this version. This field is read-only, i.e., it cannot
+     * be set by create and update methods.
+     * 

+     *
+     * 
+     * .google.protobuf.Timestamp create_time = 4 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * 
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.Timestamp,
+            com.google.protobuf.Timestamp.Builder,
+            com.google.protobuf.TimestampOrBuilder>
+        getCreateTimeFieldBuilder() {
+      if (createTimeBuilder_ == null) {
+        createTimeBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.protobuf.Timestamp,
+                com.google.protobuf.Timestamp.Builder,
+                com.google.protobuf.TimestampOrBuilder>(
+                getCreateTime(), getParentForChildren(), isClean());
+        createTime_ = null;
+      }
+      return createTimeBuilder_;
+    }
+
+    private int status_ = 0;
+    /**
+     *
+     *
+     * 
+     * Output only. The status of this version. This field is read-only and cannot be set by
+     * create and update methods.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Version.VersionStatus status = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * 
+     *
+     * @return The enum numeric value on the wire for status.
+     */
+    @java.lang.Override
+    public int getStatusValue() {
+      return status_;
+    }
+    /**
+     *
+     *
+     * 
+     * Output only. The status of this version. This field is read-only and cannot be set by
+     * create and update methods.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Version.VersionStatus status = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * 
+     *
+     * @param value The enum numeric value on the wire for status to set.
+     * @return This builder for chaining.
+     */
+    public Builder setStatusValue(int value) {
+
+      status_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Output only. The status of this version. This field is read-only and cannot be set by
+     * create and update methods.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Version.VersionStatus status = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * 
+     *
+     * @return The status.
+     */
+    @java.lang.Override
+    public com.google.cloud.dialogflow.v2beta1.Version.VersionStatus getStatus() {
+      @SuppressWarnings("deprecation")
+      com.google.cloud.dialogflow.v2beta1.Version.VersionStatus result =
+          com.google.cloud.dialogflow.v2beta1.Version.VersionStatus.valueOf(status_);
+      return result == null
+          ? com.google.cloud.dialogflow.v2beta1.Version.VersionStatus.UNRECOGNIZED
+          : result;
+    }
+    /**
+     *
+     *
+     * 
+     * Output only. The status of this version. This field is read-only and cannot be set by
+     * create and update methods.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Version.VersionStatus status = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * 
+     *
+     * @param value The status to set.
+     * @return This builder for chaining.
+     */
+    public Builder setStatus(com.google.cloud.dialogflow.v2beta1.Version.VersionStatus value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      status_ = value.getNumber();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Output only. The status of this version. This field is read-only and cannot be set by
+     * create and update methods.
+     * 

+     *
+     * 
+     * .google.cloud.dialogflow.v2beta1.Version.VersionStatus status = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];
+     * 
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearStatus() {
+
+      status_ = 0;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.v2beta1.Version)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.v2beta1.Version)
+  private static final com.google.cloud.dialogflow.v2beta1.Version DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.v2beta1.Version();
+  }
+
+  public static com.google.cloud.dialogflow.v2beta1.Version getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser PARSER =
+      new com.google.protobuf.AbstractParser() {
+        @java.lang.Override
+        public Version parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return new Version(input, extensionRegistry);
+        }
+      };
+
+  public static com.google.protobuf.Parser parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.dialogflow.v2beta1.Version getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/VersionName.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/VersionName.java
new file mode 100644
index 000000000..d1236b7ff
--- /dev/null
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/VersionName.java
@@ -0,0 +1,313 @@
+/*
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.dialogflow.v2beta1;
+
+import com.google.api.core.BetaApi;
+import com.google.api.pathtemplate.PathTemplate;
+import com.google.api.pathtemplate.ValidationException;
+import com.google.api.resourcenames.ResourceName;
+import com.google.common.base.Preconditions;
+import com.google.common.collect.ImmutableMap;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS.
+@Generated("by gapic-generator-java")
+public class VersionName implements ResourceName {
+  private static final PathTemplate PROJECT_VERSION =
+      PathTemplate.createWithoutUrlEncoding("projects/{project}/agent/versions/{version}");
+  private static final PathTemplate PROJECT_LOCATION_VERSION =
+      PathTemplate.createWithoutUrlEncoding(
+          "projects/{project}/locations/{location}/agent/versions/{version}");
+  private volatile Map fieldValuesMap;
+  private PathTemplate pathTemplate;
+  private String fixedValue;
+  private final String project;
+  private final String version;
+  private final String location;
+
+  @Deprecated
+  protected VersionName() {
+    project = null;
+    version = null;
+    location = null;
+  }
+
+  private VersionName(Builder builder) {
+    project = Preconditions.checkNotNull(builder.getProject());
+    version = Preconditions.checkNotNull(builder.getVersion());
+    location = null;
+    pathTemplate = PROJECT_VERSION;
+  }
+
+  private VersionName(ProjectLocationVersionBuilder builder) {
+    project = Preconditions.checkNotNull(builder.getProject());
+    location = Preconditions.checkNotNull(builder.getLocation());
+    version = Preconditions.checkNotNull(builder.getVersion());
+    pathTemplate = PROJECT_LOCATION_VERSION;
+  }
+
+  public String getProject() {
+    return project;
+  }
+
+  public String getVersion() {
+    return version;
+  }
+
+  public String getLocation() {
+    return location;
+  }
+
+  public static Builder newBuilder() {
+    return new Builder();
+  }
+
+  @BetaApi("The per-pattern Builders are not stable yet and may be changed in the future.")
+  public static Builder newProjectVersionBuilder() {
+    return new Builder();
+  }
+
+  @BetaApi("The per-pattern Builders are not stable yet and may be changed in the future.")
+  public static ProjectLocationVersionBuilder newProjectLocationVersionBuilder() {
+    return new ProjectLocationVersionBuilder();
+  }
+
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  public static VersionName of(String project, String version) {
+    return newBuilder().setProject(project).setVersion(version).build();
+  }
+
+  @BetaApi("The static create methods are not stable yet and may be changed in the future.")
+  public static VersionName ofProjectVersionName(String project, String version) {
+    return newBuilder().setProject(project).setVersion(version).build();
+  }
+
+  @BetaApi("The static create methods are not stable yet and may be changed in the future.")
+  public static VersionName ofProjectLocationVersionName(
+      String project, String location, String version) {
+    return newProjectLocationVersionBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setVersion(version)
+        .build();
+  }
+
+  public static String format(String project, String version) {
+    return newBuilder().setProject(project).setVersion(version).build().toString();
+  }
+
+  @BetaApi("The static format methods are not stable yet and may be changed in the future.")
+  public static String formatProjectVersionName(String project, String version) {
+    return newBuilder().setProject(project).setVersion(version).build().toString();
+  }
+
+  @BetaApi("The static format methods are not stable yet and may be changed in the future.")
+  public static String formatProjectLocationVersionName(
+      String project, String location, String version) {
+    return newProjectLocationVersionBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setVersion(version)
+        .build()
+        .toString();
+  }
+
+  public static VersionName parse(String formattedString) {
+    if (formattedString.isEmpty()) {
+      return null;
+    }
+    if (PROJECT_VERSION.matches(formattedString)) {
+      Map matchMap = PROJECT_VERSION.match(formattedString);
+      return ofProjectVersionName(matchMap.get("project"), matchMap.get("version"));
+    } else if (PROJECT_LOCATION_VERSION.matches(formattedString)) {
+      Map matchMap = PROJECT_LOCATION_VERSION.match(formattedString);
+      return ofProjectLocationVersionName(
+          matchMap.get("project"), matchMap.get("location"), matchMap.get("version"));
+    }
+    throw new ValidationException("VersionName.parse: formattedString not in valid format");
+  }
+
+  public static List parseList(List formattedStrings) {
+    List list = new ArrayList<>(formattedStrings.size());
+    for (String formattedString : formattedStrings) {
+      list.add(parse(formattedString));
+    }
+    return list;
+  }
+
+  public static List toStringList(List values) {
+    List list = new ArrayList<>(values.size());
+    for (VersionName value : values) {
+      if (value == null) {
+        list.add("");
+      } else {
+        list.add(value.toString());
+      }
+    }
+    return list;
+  }
+
+  public static boolean isParsableFrom(String formattedString) {
+    return PROJECT_VERSION.matches(formattedString)
+        || PROJECT_LOCATION_VERSION.matches(formattedString);
+  }
+
+  @Override
+  public Map getFieldValuesMap() {
+    if (fieldValuesMap == null) {
+      synchronized (this) {
+        if (fieldValuesMap == null) {
+          ImmutableMap.Builder fieldMapBuilder = ImmutableMap.builder();
+          if (project != null) {
+            fieldMapBuilder.put("project", project);
+          }
+          if (version != null) {
+            fieldMapBuilder.put("version", version);
+          }
+          if (location != null) {
+            fieldMapBuilder.put("location", location);
+          }
+          fieldValuesMap = fieldMapBuilder.build();
+        }
+      }
+    }
+    return fieldValuesMap;
+  }
+
+  public String getFieldValue(String fieldName) {
+    return getFieldValuesMap().get(fieldName);
+  }
+
+  @Override
+  public String toString() {
+    return fixedValue != null ? fixedValue : pathTemplate.instantiate(getFieldValuesMap());
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (o == this) {
+      return true;
+    }
+    if (o != null || getClass() == o.getClass()) {
+      VersionName that = ((VersionName) o);
+      return Objects.equals(this.project, that.project)
+          && Objects.equals(this.version, that.version)
+          && Objects.equals(this.location, that.location);
+    }
+    return false;
+  }
+
+  @Override
+  public int hashCode() {
+    int h = 1;
+    h *= 1000003;
+    h ^= Objects.hashCode(fixedValue);
+    h *= 1000003;
+    h ^= Objects.hashCode(project);
+    h *= 1000003;
+    h ^= Objects.hashCode(version);
+    h *= 1000003;
+    h ^= Objects.hashCode(location);
+    return h;
+  }
+
+  /** Builder for projects/{project}/agent/versions/{version}. */
+  public static class Builder {
+    private String project;
+    private String version;
+
+    protected Builder() {}
+
+    public String getProject() {
+      return project;
+    }
+
+    public String getVersion() {
+      return version;
+    }
+
+    public Builder setProject(String project) {
+      this.project = project;
+      return this;
+    }
+
+    public Builder setVersion(String version) {
+      this.version = version;
+      return this;
+    }
+
+    private Builder(VersionName versionName) {
+      Preconditions.checkArgument(
+          Objects.equals(versionName.pathTemplate, PROJECT_VERSION),
+          "toBuilder is only supported when VersionName has the pattern of projects/{project}/agent/versions/{version}");
+      project = versionName.project;
+      version = versionName.version;
+    }
+
+    public VersionName build() {
+      return new VersionName(this);
+    }
+  }
+
+  /** Builder for projects/{project}/locations/{location}/agent/versions/{version}. */
+  @BetaApi("The per-pattern Builders are not stable yet and may be changed in the future.")
+  public static class ProjectLocationVersionBuilder {
+    private String project;
+    private String location;
+    private String version;
+
+    protected ProjectLocationVersionBuilder() {}
+
+    public String getProject() {
+      return project;
+    }
+
+    public String getLocation() {
+      return location;
+    }
+
+    public String getVersion() {
+      return version;
+    }
+
+    public ProjectLocationVersionBuilder setProject(String project) {
+      this.project = project;
+      return this;
+    }
+
+    public ProjectLocationVersionBuilder setLocation(String location) {
+      this.location = location;
+      return this;
+    }
+
+    public ProjectLocationVersionBuilder setVersion(String version) {
+      this.version = version;
+      return this;
+    }
+
+    public VersionName build() {
+      return new VersionName(this);
+    }
+  }
+}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/VersionOrBuilder.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/VersionOrBuilder.java
new file mode 100644
index 000000000..c91604c3e
--- /dev/null
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/VersionOrBuilder.java
@@ -0,0 +1,169 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/v2beta1/version.proto
+
+package com.google.cloud.dialogflow.v2beta1;
+
+public interface VersionOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.dialogflow.v2beta1.Version)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * 
+   * Output only. The unique identifier of this agent version.
+   * Supported formats:
+   * - `projects/<Project ID>/agent/versions/<Version ID>`
+   * - `projects/<Project ID>/locations/<Location ID>/agent/versions/<Version
+   *   ID>`
+   * 

+   *
+   * string name = 1 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   *
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   *
+   *
+   * 
+   * Output only. The unique identifier of this agent version.
+   * Supported formats:
+   * - `projects/<Project ID>/agent/versions/<Version ID>`
+   * - `projects/<Project ID>/locations/<Location ID>/agent/versions/<Version
+   *   ID>`
+   * 

+   *
+   * string name = 1 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   *
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString getNameBytes();
+
+  /**
+   *
+   *
+   * 
+   * Optional. The developer-provided description of this version.
+   * 

+   *
+   * string description = 2 [(.google.api.field_behavior) = OPTIONAL];
+   *
+   * @return The description.
+   */
+  java.lang.String getDescription();
+  /**
+   *
+   *
+   * 
+   * Optional. The developer-provided description of this version.
+   * 

+   *
+   * string description = 2 [(.google.api.field_behavior) = OPTIONAL];
+   *
+   * @return The bytes for description.
+   */
+  com.google.protobuf.ByteString getDescriptionBytes();
+
+  /**
+   *
+   *
+   * 
+   * Output only. The sequential number of this version. This field is read-only which means
+   * it cannot be set by create and update methods.
+   * 

+   *
+   * int32 version_number = 3 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   *
+   * @return The versionNumber.
+   */
+  int getVersionNumber();
+
+  /**
+   *
+   *
+   * 
+   * Output only. The creation time of this version. This field is read-only, i.e., it cannot
+   * be set by create and update methods.
+   * 

+   *
+   * .google.protobuf.Timestamp create_time = 4 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * 
+   *
+   * @return Whether the createTime field is set.
+   */
+  boolean hasCreateTime();
+  /**
+   *
+   *
+   * 
+   * Output only. The creation time of this version. This field is read-only, i.e., it cannot
+   * be set by create and update methods.
+   * 

+   *
+   * .google.protobuf.Timestamp create_time = 4 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * 
+   *
+   * @return The createTime.
+   */
+  com.google.protobuf.Timestamp getCreateTime();
+  /**
+   *
+   *
+   * 
+   * Output only. The creation time of this version. This field is read-only, i.e., it cannot
+   * be set by create and update methods.
+   * 

+   *
+   * .google.protobuf.Timestamp create_time = 4 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * 
+   */
+  com.google.protobuf.TimestampOrBuilder getCreateTimeOrBuilder();
+
+  /**
+   *
+   *
+   * 
+   * Output only. The status of this version. This field is read-only and cannot be set by
+   * create and update methods.
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.Version.VersionStatus status = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * 
+   *
+   * @return The enum numeric value on the wire for status.
+   */
+  int getStatusValue();
+  /**
+   *
+   *
+   * 
+   * Output only. The status of this version. This field is read-only and cannot be set by
+   * create and update methods.
+   * 

+   *
+   * 
+   * .google.cloud.dialogflow.v2beta1.Version.VersionStatus status = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];
+   * 
+   *
+   * @return The status.
+   */
+  com.google.cloud.dialogflow.v2beta1.Version.VersionStatus getStatus();
+}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/VersionProto.java b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/VersionProto.java
new file mode 100644
index 000000000..8b9d99213
--- /dev/null
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/VersionProto.java
@@ -0,0 +1,232 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/dialogflow/v2beta1/version.proto
+
+package com.google.cloud.dialogflow.v2beta1;
+
+public final class VersionProto {
+  private VersionProto() {}
+
+  public static void registerAllExtensions(com.google.protobuf.ExtensionRegistryLite registry) {}
+
+  public static void registerAllExtensions(com.google.protobuf.ExtensionRegistry registry) {
+    registerAllExtensions((com.google.protobuf.ExtensionRegistryLite) registry);
+  }
+
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_v2beta1_Version_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_v2beta1_Version_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_v2beta1_ListVersionsRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_v2beta1_ListVersionsRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_v2beta1_ListVersionsResponse_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_v2beta1_ListVersionsResponse_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_v2beta1_GetVersionRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_v2beta1_GetVersionRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_v2beta1_CreateVersionRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_v2beta1_CreateVersionRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_v2beta1_UpdateVersionRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_v2beta1_UpdateVersionRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_dialogflow_v2beta1_DeleteVersionRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_dialogflow_v2beta1_DeleteVersionRequest_fieldAccessorTable;
+
+  public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
+    return descriptor;
+  }
+
+  private static com.google.protobuf.Descriptors.FileDescriptor descriptor;
+
+  static {
+    java.lang.String[] descriptorData = {
+      "\n-google/cloud/dialogflow/v2beta1/versio"
+          + "n.proto\022\037google.cloud.dialogflow.v2beta1"
+          + "\032\034google/api/annotations.proto\032\027google/a"
+          + "pi/client.proto\032\037google/api/field_behavi"
+          + "or.proto\032\031google/api/resource.proto\032\033goo"
+          + "gle/protobuf/empty.proto\032 google/protobu"
+          + "f/field_mask.proto\032\037google/protobuf/time"
+          + "stamp.proto\"\310\003\n\007Version\022\021\n\004name\030\001 \001(\tB\003\340"
+          + "A\003\022\030\n\013description\030\002 \001(\tB\003\340A\001\022\033\n\016version_"
+          + "number\030\003 \001(\005B\003\340A\003\0224\n\013create_time\030\004 \001(\0132\032"
+          + ".google.protobuf.TimestampB\003\340A\003\022K\n\006statu"
+          + "s\030\006 \001(\01626.google.cloud.dialogflow.v2beta"
+          + "1.Version.VersionStatusB\003\340A\003\"W\n\rVersionS"
+          + "tatus\022\036\n\032VERSION_STATUS_UNSPECIFIED\020\000\022\017\n"
+          + "\013IN_PROGRESS\020\001\022\t\n\005READY\020\002\022\n\n\006FAILED\020\003:\226\001"
+          + "\352A\222\001\n!dialogflow.googleapis.com/Version\022"
+          + "+projects/{project}/agent/versions/{vers"
+          + "ion}\022@projects/{project}/locations/{loca"
+          + "tion}/agent/versions/{version}\"\201\001\n\023ListV"
+          + "ersionsRequest\0229\n\006parent\030\001 \001(\tB)\340A\002\372A#\022!"
+          + "dialogflow.googleapis.com/Version\022\026\n\tpag"
+          + "e_size\030\002 \001(\005B\003\340A\001\022\027\n\npage_token\030\003 \001(\tB\003\340"
+          + "A\001\"k\n\024ListVersionsResponse\022:\n\010versions\030\001"
+          + " \003(\0132(.google.cloud.dialogflow.v2beta1.V"
+          + "ersion\022\027\n\017next_page_token\030\002 \001(\t\"L\n\021GetVe"
+          + "rsionRequest\0227\n\004name\030\001 \001(\tB)\340A\002\372A#\n!dial"
+          + "ogflow.googleapis.com/Version\"\221\001\n\024Create"
+          + "VersionRequest\0229\n\006parent\030\001 \001(\tB)\340A\002\372A#\022!"
+          + "dialogflow.googleapis.com/Version\022>\n\007ver"
+          + "sion\030\002 \001(\0132(.google.cloud.dialogflow.v2b"
+          + "eta1.VersionB\003\340A\002\"\214\001\n\024UpdateVersionReque"
+          + "st\022>\n\007version\030\001 \001(\0132(.google.cloud.dialo"
+          + "gflow.v2beta1.VersionB\003\340A\002\0224\n\013update_mas"
+          + "k\030\002 \001(\0132\032.google.protobuf.FieldMaskB\003\340A\002"
+          + "\"O\n\024DeleteVersionRequest\0227\n\004name\030\001 \001(\tB)"
+          + "\340A\002\372A#\n!dialogflow.googleapis.com/Versio"
+          + "n2\333\n\n\010Versions\022\364\001\n\014ListVersions\0224.google"
+          + ".cloud.dialogflow.v2beta1.ListVersionsRe"
+          + "quest\0325.google.cloud.dialogflow.v2beta1."
+          + "ListVersionsResponse\"w\202\323\344\223\002h\022+/v2beta1/{"
+          + "parent=projects/*/agent}/versionsZ9\0227/v2"
+          + "beta1/{parent=projects/*/locations/*/age"
+          + "nt}/versions\332A\006parent\022\341\001\n\nGetVersion\0222.g"
+          + "oogle.cloud.dialogflow.v2beta1.GetVersio"
+          + "nRequest\032(.google.cloud.dialogflow.v2bet"
+          + "a1.Version\"u\202\323\344\223\002h\022+/v2beta1/{name=proje"
+          + "cts/*/agent/versions/*}Z9\0227/v2beta1/{nam"
+          + "e=projects/*/locations/*/agent/versions/"
+          + "*}\332A\004name\022\204\002\n\rCreateVersion\0225.google.clo"
+          + "ud.dialogflow.v2beta1.CreateVersionReque"
+          + "st\032(.google.cloud.dialogflow.v2beta1.Ver"
+          + "sion\"\221\001\202\323\344\223\002z\"+/v2beta1/{parent=projects"
+          + "/*/agent}/versions:\007versionZB\"7/v2beta1/"
+          + "{parent=projects/*/locations/*/agent}/ve"
+          + "rsions:\007version\332A\016parent,version\022\232\002\n\rUpd"
+          + "ateVersion\0225.google.cloud.dialogflow.v2b"
+          + "eta1.UpdateVersionRequest\032(.google.cloud"
+          + ".dialogflow.v2beta1.Version\"\247\001\202\323\344\223\002\212\00123/"
+          + "v2beta1/{version.name=projects/*/agent/v"
+          + "ersions/*}:\007versionZJ2?/v2beta1/{version"
+          + ".name=projects/*/locations/*/agent/versi"
+          + "ons/*}:\007version\332A\023version,update_mask\022\325\001"
+          + "\n\rDeleteVersion\0225.google.cloud.dialogflo"
+          + "w.v2beta1.DeleteVersionRequest\032\026.google."
+          + "protobuf.Empty\"u\202\323\344\223\002h*+/v2beta1/{name=p"
+          + "rojects/*/agent/versions/*}Z9*7/v2beta1/"
+          + "{name=projects/*/locations/*/agent/versi"
+          + "ons/*}\332A\004name\032x\312A\031dialogflow.googleapis."
+          + "com\322AYhttps://www.googleapis.com/auth/cl"
+          + "oud-platform,https://www.googleapis.com/"
+          + "auth/dialogflowB\252\001\n#com.google.cloud.dia"
+          + "logflow.v2beta1B\014VersionProtoP\001ZIgoogle."
+          + "golang.org/genproto/googleapis/cloud/dia"
+          + "logflow/v2beta1;dialogflow\370\001\001\242\002\002DF\252\002\037Goo"
+          + "gle.Cloud.Dialogflow.V2beta1b\006proto3"
+    };
+    descriptor =
+        com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
+            descriptorData,
+            new com.google.protobuf.Descriptors.FileDescriptor[] {
+              com.google.api.AnnotationsProto.getDescriptor(),
+              com.google.api.ClientProto.getDescriptor(),
+              com.google.api.FieldBehaviorProto.getDescriptor(),
+              com.google.api.ResourceProto.getDescriptor(),
+              com.google.protobuf.EmptyProto.getDescriptor(),
+              com.google.protobuf.FieldMaskProto.getDescriptor(),
+              com.google.protobuf.TimestampProto.getDescriptor(),
+            });
+    internal_static_google_cloud_dialogflow_v2beta1_Version_descriptor =
+        getDescriptor().getMessageTypes().get(0);
+    internal_static_google_cloud_dialogflow_v2beta1_Version_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_v2beta1_Version_descriptor,
+            new java.lang.String[] {
+              "Name", "Description", "VersionNumber", "CreateTime", "Status",
+            });
+    internal_static_google_cloud_dialogflow_v2beta1_ListVersionsRequest_descriptor =
+        getDescriptor().getMessageTypes().get(1);
+    internal_static_google_cloud_dialogflow_v2beta1_ListVersionsRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_v2beta1_ListVersionsRequest_descriptor,
+            new java.lang.String[] {
+              "Parent", "PageSize", "PageToken",
+            });
+    internal_static_google_cloud_dialogflow_v2beta1_ListVersionsResponse_descriptor =
+        getDescriptor().getMessageTypes().get(2);
+    internal_static_google_cloud_dialogflow_v2beta1_ListVersionsResponse_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_v2beta1_ListVersionsResponse_descriptor,
+            new java.lang.String[] {
+              "Versions", "NextPageToken",
+            });
+    internal_static_google_cloud_dialogflow_v2beta1_GetVersionRequest_descriptor =
+        getDescriptor().getMessageTypes().get(3);
+    internal_static_google_cloud_dialogflow_v2beta1_GetVersionRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_v2beta1_GetVersionRequest_descriptor,
+            new java.lang.String[] {
+              "Name",
+            });
+    internal_static_google_cloud_dialogflow_v2beta1_CreateVersionRequest_descriptor =
+        getDescriptor().getMessageTypes().get(4);
+    internal_static_google_cloud_dialogflow_v2beta1_CreateVersionRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_v2beta1_CreateVersionRequest_descriptor,
+            new java.lang.String[] {
+              "Parent", "Version",
+            });
+    internal_static_google_cloud_dialogflow_v2beta1_UpdateVersionRequest_descriptor =
+        getDescriptor().getMessageTypes().get(5);
+    internal_static_google_cloud_dialogflow_v2beta1_UpdateVersionRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_v2beta1_UpdateVersionRequest_descriptor,
+            new java.lang.String[] {
+              "Version", "UpdateMask",
+            });
+    internal_static_google_cloud_dialogflow_v2beta1_DeleteVersionRequest_descriptor =
+        getDescriptor().getMessageTypes().get(6);
+    internal_static_google_cloud_dialogflow_v2beta1_DeleteVersionRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_dialogflow_v2beta1_DeleteVersionRequest_descriptor,
+            new java.lang.String[] {
+              "Name",
+            });
+    com.google.protobuf.ExtensionRegistry registry =
+        com.google.protobuf.ExtensionRegistry.newInstance();
+    registry.add(com.google.api.ClientProto.defaultHost);
+    registry.add(com.google.api.FieldBehaviorProto.fieldBehavior);
+    registry.add(com.google.api.AnnotationsProto.http);
+    registry.add(com.google.api.ClientProto.methodSignature);
+    registry.add(com.google.api.ClientProto.oauthScopes);
+    registry.add(com.google.api.ResourceProto.resource);
+    registry.add(com.google.api.ResourceProto.resourceReference);
+    com.google.protobuf.Descriptors.FileDescriptor.internalUpdateFileDescriptor(
+        descriptor, registry);
+    com.google.api.AnnotationsProto.getDescriptor();
+    com.google.api.ClientProto.getDescriptor();
+    com.google.api.FieldBehaviorProto.getDescriptor();
+    com.google.api.ResourceProto.getDescriptor();
+    com.google.protobuf.EmptyProto.getDescriptor();
+    com.google.protobuf.FieldMaskProto.getDescriptor();
+    com.google.protobuf.TimestampProto.getDescriptor();
+  }
+
+  // @@protoc_insertion_point(outer_class_scope)
+}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/agent.proto b/proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/agent.proto
index 51c5b831d..49c464e86 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/agent.proto
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/agent.proto
@@ -210,6 +210,7 @@ service Agents {
 //
 // For more information about agents, see the
 // [Agent guide](https://cloud.google.com/dialogflow/docs/agents-overview).
+//
 message Agent {
   option (google.api.resource) = {
     type: "dialogflow.googleapis.com/Agent"
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/answer_record.proto b/proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/answer_record.proto
index 4f7b9f44a..fd7d53127 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/answer_record.proto
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/answer_record.proto
@@ -33,8 +33,7 @@ option java_outer_classname = "AnswerRecordsProto";
 option java_package = "com.google.cloud.dialogflow.v2beta1";
 option objc_class_prefix = "DF";
 
-// Service for managing
-// [AnswerRecords][google.cloud.dialogflow.v2beta1.AnswerRecord].
+// Service for managing [AnswerRecords][google.cloud.dialogflow.v2beta1.AnswerRecord].
 service AnswerRecords {
   option (google.api.default_host) = "dialogflow.googleapis.com";
   option (google.api.oauth_scopes) =
@@ -55,8 +54,7 @@ service AnswerRecords {
 
   // Returns the list of all answer records in the specified project in reverse
   // chronological order.
-  rpc ListAnswerRecords(ListAnswerRecordsRequest)
-      returns (ListAnswerRecordsResponse) {
+  rpc ListAnswerRecords(ListAnswerRecordsRequest) returns (ListAnswerRecordsResponse) {
     option (google.api.http) = {
       get: "/v2beta1/{parent=projects/*}/answerRecords"
       additional_bindings {
@@ -101,12 +99,9 @@ service AnswerRecords {
 // A typical workflow for customers provide feedback to an answer is:
 //
 // 1. For human agent assistant, customers get suggestion via ListSuggestions
-//    API. Together with the answers,
-//    [AnswerRecord.name][google.cloud.dialogflow.v2beta1.AnswerRecord.name] are
-//    returned to the customers.
-// 2. The customer uses the
-// [AnswerRecord.name][google.cloud.dialogflow.v2beta1.AnswerRecord.name] to
-// call the
+//    API. Together with the answers, [AnswerRecord.name][google.cloud.dialogflow.v2beta1.AnswerRecord.name] are returned to the
+//    customers.
+// 2. The customer uses the [AnswerRecord.name][google.cloud.dialogflow.v2beta1.AnswerRecord.name] to call the
 //    [UpdateAnswerRecord][] method to send feedback about a specific answer
 //    that they believe is wrong.
 message AnswerRecord {
@@ -117,15 +112,14 @@ message AnswerRecord {
   };
 
   // The unique identifier of this answer record.
-  // Required for
-  // [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord]
-  // method. Format: `projects//locations//locations//answerRecords/`.
   string name = 1;
 
   // Optional. The AnswerFeedback for this record. You can set this with
-  // [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord]
-  // in order to give us feedback about this answer.
+  // [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord] in order to give us feedback about
+  // this answer.
   AnswerFeedback answer_feedback = 3;
 
   // Output only. The record for this answer.
@@ -140,8 +134,7 @@ message AgentAssistantRecord {
   // Output only. The agent assistant answer.
   oneof answer {
     // Output only. The article suggestion answer.
-    ArticleAnswer article_suggestion_answer = 5
-        [(google.api.field_behavior) = OUTPUT_ONLY];
+    ArticleAnswer article_suggestion_answer = 5 [(google.api.field_behavior) = OUTPUT_ONLY];
 
     // Output only. The FAQ answer.
     FaqAnswer faq_answer = 6 [(google.api.field_behavior) = OUTPUT_ONLY];
@@ -263,9 +256,7 @@ message AgentAssistantFeedback {
 
   // Optional. Whether or not the suggested document is efficient. For example,
   // if the document is poorly written, hard to understand, hard to use or
-  // too long to find useful information,
-  // [document_efficiency][google.cloud.dialogflow.v2beta1.AgentAssistantFeedback.document_efficiency]
-  // is
+  // too long to find useful information, [document_efficiency][google.cloud.dialogflow.v2beta1.AgentAssistantFeedback.document_efficiency] is
   // [DocumentEfficiency.INEFFICIENT][google.cloud.dialogflow.v2beta1.AgentAssistantFeedback.DocumentEfficiency.INEFFICIENT].
   DocumentEfficiency document_efficiency = 3;
 
@@ -273,8 +264,7 @@ message AgentAssistantFeedback {
   SummarizationFeedback summarization_feedback = 4;
 }
 
-// Request message for
-// [AnswerRecords.GetAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.GetAnswerRecord].
+// Request message for [AnswerRecords.GetAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.GetAnswerRecord].
 message GetAnswerRecordRequest {
   // Required. The name of the answer record to retrieve.
   // Format: `projects//locations//locations/`.
   string parent = 1 [(google.api.resource_reference) = {
-    child_type: "dialogflow.googleapis.com/AnswerRecord"
-  }];
+                       child_type: "dialogflow.googleapis.com/AnswerRecord"
+                     }];
 
   // Optional. The maximum number of records to return in a single page.
   // The server may return fewer records than this. If unspecified, we use 10.
@@ -304,8 +293,7 @@ message ListAnswerRecordsRequest {
   string page_token = 4;
 }
 
-// Response message for
-// [AnswerRecords.ListAnswerRecords][google.cloud.dialogflow.v2beta1.AnswerRecords.ListAnswerRecords].
+// Response message for [AnswerRecords.ListAnswerRecords][google.cloud.dialogflow.v2beta1.AnswerRecords.ListAnswerRecords].
 message ListAnswerRecordsResponse {
   // The list of answer records.
   repeated AnswerRecord answer_records = 1;
@@ -319,8 +307,7 @@ message ListAnswerRecordsResponse {
   string next_page_token = 2;
 }
 
-// Request message for
-// [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord].
+// Request message for [AnswerRecords.UpdateAnswerRecord][google.cloud.dialogflow.v2beta1.AnswerRecords.UpdateAnswerRecord].
 message UpdateAnswerRecordRequest {
   // Required. Answer record to update.
   AnswerRecord answer_record = 1 [(google.api.field_behavior) = REQUIRED];
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/context.proto b/proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/context.proto
index a48e0ab63..c18e411a2 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/context.proto
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/context.proto
@@ -174,6 +174,7 @@ message Context {
     pattern: "projects/{project}/agent/sessions/{session}/contexts/{context}"
     pattern: "projects/{project}/agent/environments/{environment}/users/{user}/sessions/{session}/contexts/{context}"
     pattern: "projects/{project}/locations/{location}/agent/sessions/{session}/contexts/{context}"
+    pattern: "projects/{project}/locations/{location}/agent/environments/{environment}/users/{user}/sessions/{session}/contexts/{context}"
   };
 
   // Required. The unique identifier of the context. Supported formats:
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/conversation.proto b/proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/conversation.proto
index 6e203540b..6c2fdf6d3 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/conversation.proto
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/conversation.proto
@@ -37,8 +37,7 @@ option java_outer_classname = "ConversationProto";
 option java_package = "com.google.cloud.dialogflow.v2beta1";
 option objc_class_prefix = "DF";
 
-// Service for managing
-// [Conversations][google.cloud.dialogflow.v2beta1.Conversation].
+// Service for managing [Conversations][google.cloud.dialogflow.v2beta1.Conversation].
 service Conversations {
   option (google.api.default_host) = "dialogflow.googleapis.com";
   option (google.api.oauth_scopes) =
@@ -58,14 +57,11 @@ service Conversations {
   // For Assist Stage, there's no dialogflow agent responding to user queries.
   // But we will provide suggestions which are generated from conversation.
   //
-  // If
-  // [Conversation.conversation_profile][google.cloud.dialogflow.v2beta1.Conversation.conversation_profile]
-  // is configured for a dialogflow agent, conversation will start from
-  // `Automated Agent Stage`, otherwise, it will start from `Assist Stage`. And
-  // during `Automated Agent Stage`, once an
-  // [Intent][google.cloud.dialogflow.v2beta1.Intent] with
-  // [Intent.live_agent_handoff][google.cloud.dialogflow.v2beta1.Intent.live_agent_handoff]
-  // is triggered, conversation will transfer to Assist Stage.
+  // If [Conversation.conversation_profile][google.cloud.dialogflow.v2beta1.Conversation.conversation_profile] is configured for a dialogflow
+  // agent, conversation will start from `Automated Agent Stage`, otherwise, it
+  // will start from `Assist Stage`. And during `Automated Agent Stage`, once an
+  // [Intent][google.cloud.dialogflow.v2beta1.Intent] with [Intent.live_agent_handoff][google.cloud.dialogflow.v2beta1.Intent.live_agent_handoff] is triggered, conversation
+  // will transfer to Assist Stage.
   rpc CreateConversation(CreateConversationRequest) returns (Conversation) {
     option (google.api.http) = {
       post: "/v2beta1/{parent=projects/*}/conversations"
@@ -79,8 +75,7 @@ service Conversations {
   }
 
   // Returns the list of all conversations in the specified project.
-  rpc ListConversations(ListConversationsRequest)
-      returns (ListConversationsResponse) {
+  rpc ListConversations(ListConversationsRequest) returns (ListConversationsResponse) {
     option (google.api.http) = {
       get: "/v2beta1/{parent=projects/*}/conversations"
       additional_bindings {
@@ -117,8 +112,7 @@ service Conversations {
 
   // Batch ingests messages to conversation. Customers can use this RPC to
   // ingest historical messages to conversation.
-  rpc BatchCreateMessages(BatchCreateMessagesRequest)
-      returns (BatchCreateMessagesResponse) {
+  rpc BatchCreateMessages(BatchCreateMessagesRequest) returns (BatchCreateMessagesResponse) {
     option (google.api.http) = {
       post: "/v2beta1/{parent=projects/*/conversations/*}/messages:batchCreate"
       body: "*"
@@ -192,8 +186,7 @@ message Conversation {
   string name = 1 [(google.api.field_behavior) = OUTPUT_ONLY];
 
   // Output only. The current state of the Conversation.
-  LifecycleState lifecycle_state = 2
-      [(google.api.field_behavior) = OUTPUT_ONLY];
+  LifecycleState lifecycle_state = 2 [(google.api.field_behavior) = OUTPUT_ONLY];
 
   // Required. The Conversation Profile to be used to configure this
   // Conversation. This field cannot be updated.
@@ -208,34 +201,28 @@ message Conversation {
 
   // Output only. Required if the conversation is to be connected over
   // telephony.
-  ConversationPhoneNumber phone_number = 4
-      [(google.api.field_behavior) = OUTPUT_ONLY];
+  ConversationPhoneNumber phone_number = 4 [(google.api.field_behavior) = OUTPUT_ONLY];
 
   // The stage of a conversation. It indicates whether the virtual agent or a
   // human agent is handling the conversation.
   //
   // If the conversation is created with the conversation profile that has
   // Dialogflow config set, defaults to
-  // [ConversationStage.VIRTUAL_AGENT_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.VIRTUAL_AGENT_STAGE];
-  // Otherwise, defaults to
+  // [ConversationStage.VIRTUAL_AGENT_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.VIRTUAL_AGENT_STAGE]; Otherwise, defaults to
   // [ConversationStage.HUMAN_ASSIST_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.HUMAN_ASSIST_STAGE].
   //
   // If the conversation is created with the conversation profile that has
   // Dialogflow config set but explicitly sets conversation_stage to
-  // [ConversationStage.HUMAN_ASSIST_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.HUMAN_ASSIST_STAGE],
-  // it skips
-  // [ConversationStage.VIRTUAL_AGENT_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.VIRTUAL_AGENT_STAGE]
-  // stage and directly goes to
+  // [ConversationStage.HUMAN_ASSIST_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.HUMAN_ASSIST_STAGE], it skips
+  // [ConversationStage.VIRTUAL_AGENT_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.VIRTUAL_AGENT_STAGE] stage and directly goes to
   // [ConversationStage.HUMAN_ASSIST_STAGE][google.cloud.dialogflow.v2beta1.Conversation.ConversationStage.HUMAN_ASSIST_STAGE].
   ConversationStage conversation_stage = 7;
 
   // Output only. The time the conversation was started.
-  google.protobuf.Timestamp start_time = 5
-      [(google.api.field_behavior) = OUTPUT_ONLY];
+  google.protobuf.Timestamp start_time = 5 [(google.api.field_behavior) = OUTPUT_ONLY];
 
   // Output only. The time the conversation was finished.
-  google.protobuf.Timestamp end_time = 6
-      [(google.api.field_behavior) = OUTPUT_ONLY];
+  google.protobuf.Timestamp end_time = 6 [(google.api.field_behavior) = OUTPUT_ONLY];
 }
 
 // Represents a phone number for telephony integration. It allows for connecting
@@ -245,8 +232,7 @@ message ConversationPhoneNumber {
   string phone_number = 3 [(google.api.field_behavior) = OUTPUT_ONLY];
 }
 
-// The request message for
-// [Conversations.CreateConversation][google.cloud.dialogflow.v2beta1.Conversations.CreateConversation].
+// The request message for [Conversations.CreateConversation][google.cloud.dialogflow.v2beta1.Conversations.CreateConversation].
 message CreateConversationRequest {
   // Required. Resource identifier of the project creating the conversation.
   // Format: `projects//locations/`.
@@ -260,8 +246,8 @@ message CreateConversationRequest {
   // Required. The conversation to create.
   Conversation conversation = 2 [(google.api.field_behavior) = REQUIRED];
 
-  // Optional. Identifier of the conversation. Generally it's auto generated by
-  // Google. Only set it if you cannot wait for the response to return a
+  // Optional. Identifier of the conversation. Generally it's auto generated by Google.
+  // Only set it if you cannot wait for the response to return a
   // auto-generated one to you.
   //
   // The conversation ID must be compliant with the regression fomula
@@ -273,8 +259,7 @@ message CreateConversationRequest {
   string conversation_id = 3 [(google.api.field_behavior) = OPTIONAL];
 }
 
-// The request message for
-// [Conversations.ListConversations][google.cloud.dialogflow.v2beta1.Conversations.ListConversations].
+// The request message for [Conversations.ListConversations][google.cloud.dialogflow.v2beta1.Conversations.ListConversations].
 message ListConversationsRequest {
   // Required. The project from which to list all conversation.
   // Format: `projects//locations/`.
@@ -312,8 +297,7 @@ message ListConversationsRequest {
   string filter = 4;
 }
 
-// The response message for
-// [Conversations.ListConversations][google.cloud.dialogflow.v2beta1.Conversations.ListConversations].
+// The response message for [Conversations.ListConversations][google.cloud.dialogflow.v2beta1.Conversations.ListConversations].
 message ListConversationsResponse {
   // The list of conversations. There will be a maximum number of items
   // returned based on the page_size field in the request.
@@ -324,8 +308,7 @@ message ListConversationsResponse {
   string next_page_token = 2;
 }
 
-// The request message for
-// [Conversations.GetConversation][google.cloud.dialogflow.v2beta1.Conversations.GetConversation].
+// The request message for [Conversations.GetConversation][google.cloud.dialogflow.v2beta1.Conversations.GetConversation].
 message GetConversationRequest {
   // Required. The name of the conversation. Format:
   // `projects//locations//conversations//locations//locations/ 1551790877964485` or
-  // `create_time > 2017-01-15T01:30:15.01Z`.
+  // `create_time > "2017-01-15T01:30:15.01Z"`.
   //
   // For more information about filtering, see
   // [API Filtering](https://aip.dev/160).
@@ -428,8 +406,7 @@ message ListMessagesRequest {
   string page_token = 3;
 }
 
-// The response message for
-// [Conversations.ListMessages][google.cloud.dialogflow.v2beta1.Conversations.ListMessages].
+// The response message for [Conversations.ListMessages][google.cloud.dialogflow.v2beta1.Conversations.ListMessages].
 message ListMessagesResponse {
   // Required. The list of messages. There will be a maximum number of items
   // returned based on the page_size field in the request.
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/conversation_profile.proto b/proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/conversation_profile.proto
index 24ec8d433..c08509e5d 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/conversation_profile.proto
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/conversation_profile.proto
@@ -35,6 +35,14 @@ option java_multiple_files = true;
 option java_outer_classname = "ConversationProfileProto";
 option java_package = "com.google.cloud.dialogflow.v2beta1";
 option objc_class_prefix = "DF";
+option (google.api.resource_definition) = {
+  type: "dialogflow.googleapis.com/CXSecuritySettings"
+  pattern: "projects/{project}/locations/{location}/securitySettings/{security_settings}"
+};
+option (google.api.resource_definition) = {
+  type: "dialogflow.googleapis.com/ConversationModel"
+  pattern: "projects/{project}/locations/{location}/conversationModels/{conversation_model}"
+};
 
 // Service for managing [ConversationProfiles][google.cloud.dialogflow.v2beta1.ConversationProfile].
 service ConversationProfiles {
@@ -140,6 +148,9 @@ message ConversationProfile {
   HumanAgentAssistantConfig human_agent_assistant_config = 4;
 
   // Configuration for connecting to a live agent.
+  //
+  // Currently, this feature is not general available, please contact Google
+  // to get access.
   HumanAgentHandoffConfig human_agent_handoff_config = 5;
 
   // Configuration for publishing conversation lifecycle events.
@@ -355,11 +366,11 @@ message HumanAgentAssistantConfig {
   //
   // Supported feature: ARTICLE_SUGGESTION, SMART_COMPOSE, SMART_REPLY.
   message ConversationModelConfig {
-    // Required. Conversation model resource name. Format: `projects//conversationModels/`.
-    string model = 1 [
-      (google.api.field_behavior) = REQUIRED
-    ];
+    string model = 1 [(google.api.resource_reference) = {
+                        type: "dialogflow.googleapis.com/ConversationModel"
+                      }];
   }
 
   // Configuration for analyses to run on each conversation message.
@@ -367,6 +378,9 @@ message HumanAgentAssistantConfig {
     // Enable entity extraction in conversation messages on [agent assist
     // stage](https://cloud.google.com/dialogflow/priv/docs/contact-center/basics#stages).
     // If unspecified, defaults to false.
+    //
+    // Currently, this feature is not general available, please contact Google
+    // to get access.
     bool enable_entity_extraction = 2;
 
     // Enable sentiment analysis in conversation messages on [agent assist
@@ -393,6 +407,9 @@ message HumanAgentAssistantConfig {
   SuggestionConfig human_agent_suggestion_config = 3;
 
   // Configuration for agent assistance of end user participant.
+  //
+  // Currently, this feature is not general available, please contact Google
+  // to get access.
   SuggestionConfig end_user_suggestion_config = 4;
 
   // Configuration for message analysis.
@@ -401,6 +418,9 @@ message HumanAgentAssistantConfig {
 
 // Defines the hand off to a live agent, typically on which external agent
 // service provider to connect to a conversation.
+//
+// Currently, this feature is not general available, please contact Google
+// to get access.
 message HumanAgentHandoffConfig {
   // Configuration specific to LivePerson (https://www.liveperson.com).
   message LivePersonConfig {
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/document.proto b/proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/document.proto
index 0af6eb9e6..25fdf0ce7 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/document.proto
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/document.proto
@@ -101,6 +101,8 @@ service Documents {
   }
 
   // Create documents by importing data from external sources.
+  // Dialogflow supports up to 350 documents in each request. If you try to
+  // import more, Dialogflow will return an error.
   rpc ImportDocuments(ImportDocumentsRequest) returns (google.longrunning.Operation) {
     option (google.api.http) = {
       post: "/v2beta1/{parent=projects/*/knowledgeBases/*}/documents:import"
@@ -417,6 +419,9 @@ message ImportDocumentsRequest {
   // If the source captures multiple objects, then multiple documents will be
   // created, one corresponding to each object, and all of these documents will
   // be created using the same document template.
+  //
+  // Dialogflow supports up to 350 documents in each request. If you try to
+  // import more, Dialogflow will return an error.
   oneof source {
     // The Google Cloud Storage location for the documents.
     // The path can include a wildcard.
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/environment.proto b/proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/environment.proto
index a933b9bea..62258c1bb 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/environment.proto
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/environment.proto
@@ -21,6 +21,7 @@ import "google/api/client.proto";
 import "google/api/field_behavior.proto";
 import "google/api/resource.proto";
 import "google/cloud/dialogflow/v2beta1/audio_config.proto";
+import "google/cloud/dialogflow/v2beta1/fulfillment.proto";
 import "google/protobuf/empty.proto";
 import "google/protobuf/field_mask.proto";
 import "google/protobuf/timestamp.proto";
@@ -50,6 +51,71 @@ service Environments {
     };
     option (google.api.method_signature) = "parent";
   }
+
+  // Retrieves the specified agent environment.
+  rpc GetEnvironment(GetEnvironmentRequest) returns (Environment) {
+    option (google.api.http) = {
+      get: "/v2beta1/{name=projects/*/agent/environments/*}"
+      additional_bindings {
+        get: "/v2beta1/{name=projects/*/locations/*/agent/environments/*}"
+      }
+    };
+  }
+
+  // Creates an agent environment.
+  rpc CreateEnvironment(CreateEnvironmentRequest) returns (Environment) {
+    option (google.api.http) = {
+      post: "/v2beta1/{parent=projects/*/agent}/environments"
+      body: "environment"
+      additional_bindings {
+        post: "/v2beta1/{parent=projects/*/locations/*/agent}/environments"
+        body: "environment"
+      }
+    };
+  }
+
+  // Updates the specified agent environment.
+  //
+  // This method allows you to deploy new agent versions into the environment.
+  // When an environment is pointed to a new agent version by setting
+  // `environment.agent_version`, the environment is temporarily set to the
+  // `LOADING` state. During that time, the environment keeps on serving the
+  // previous version of the agent. After the new agent version is done loading,
+  // the environment is set back to the `RUNNING` state.
+  // You can use "-" as Environment ID in environment name to update version
+  // in "draft" environment. WARNING: this will negate all recent changes to
+  // draft and can't be undone. You may want to save the draft to a version
+  // before calling this function.
+  rpc UpdateEnvironment(UpdateEnvironmentRequest) returns (Environment) {
+    option (google.api.http) = {
+      patch: "/v2beta1/{environment.name=projects/*/agent/environments/*}"
+      body: "environment"
+      additional_bindings {
+        patch: "/v2beta1/{environment.name=projects/*/locations/*/agent/environments/*}"
+        body: "environment"
+      }
+    };
+  }
+
+  // Deletes the specified agent environment.
+  rpc DeleteEnvironment(DeleteEnvironmentRequest) returns (google.protobuf.Empty) {
+    option (google.api.http) = {
+      delete: "/v2beta1/{name=projects/*/agent/environments/*}"
+      additional_bindings {
+        delete: "/v2beta1/{name=projects/*/locations/*/agent/environments/*}"
+      }
+    };
+  }
+
+  // Gets the history of the specified environment.
+  rpc GetEnvironmentHistory(GetEnvironmentHistoryRequest) returns (EnvironmentHistory) {
+    option (google.api.http) = {
+      get: "/v2beta1/{parent=projects/*/agent/environments/*}/history"
+      additional_bindings {
+        get: "/v2beta1/{parent=projects/*/locations/*/agent/environments/*}/history"
+      }
+    };
+  }
 }
 
 // You can create multiple versions of your agent and publish them to separate
@@ -121,6 +187,34 @@ message Environment {
   // Output only. The last update time of this environment. This field is read-only, i.e., it
   // cannot be set by create and update methods.
   google.protobuf.Timestamp update_time = 5 [(google.api.field_behavior) = OUTPUT_ONLY];
+
+  // Optional. Text to speech settings for this environment.
+  TextToSpeechSettings text_to_speech_settings = 7 [(google.api.field_behavior) = OPTIONAL];
+
+  // Optional. The fulfillment settings to use for this environment.
+  Fulfillment fulfillment = 8 [(google.api.field_behavior) = OPTIONAL];
+}
+
+// Instructs the speech synthesizer on how to generate the output audio content.
+message TextToSpeechSettings {
+  // Optional. Indicates whether text to speech is enabled. Even when this field is false,
+  // other settings in this proto are still retained.
+  bool enable_text_to_speech = 1 [(google.api.field_behavior) = OPTIONAL];
+
+  // Required. Audio encoding of the synthesized audio content.
+  OutputAudioEncoding output_audio_encoding = 2 [(google.api.field_behavior) = REQUIRED];
+
+  // Optional. The synthesis sample rate (in hertz) for this audio. If not provided, then
+  // the synthesizer will use the default sample rate based on the audio
+  // encoding. If this is different from the voice's natural sample rate, then
+  // the synthesizer will honor this request by converting to the desired sample
+  // rate (which might result in worse audio quality).
+  int32 sample_rate_hertz = 3 [(google.api.field_behavior) = OPTIONAL];
+
+  // Optional. Configuration of how speech should be synthesized, mapping from language
+  // (https://cloud.google.com/dialogflow/docs/reference/language) to
+  // SynthesizeSpeechConfig.
+  map synthesize_speech_configs = 4 [(google.api.field_behavior) = OPTIONAL];
 }
 
 // The request message for [Environments.ListEnvironments][google.cloud.dialogflow.v2beta1.Environments.ListEnvironments].
@@ -154,3 +248,122 @@ message ListEnvironmentsResponse {
   // more results in the list.
   string next_page_token = 2;
 }
+
+// The request message for [Environments.GetEnvironment][google.cloud.dialogflow.v2beta1.Environments.GetEnvironment].
+message GetEnvironmentRequest {
+  // Required. The name of the environment.
+  // Supported formats:
+  // - `projects//agent/environments/`
+  // - `projects//locations//agent/environments/`
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "dialogflow.googleapis.com/Environment"
+    }
+  ];
+}
+
+// The request message for [Environments.CreateEnvironment][google.cloud.dialogflow.v2beta1.Environments.CreateEnvironment].
+message CreateEnvironmentRequest {
+  // Required. The agent to create an environment for.
+  // Supported formats:
+  // - `projects//agent`
+  // - `projects//locations//agent`
+  string parent = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      child_type: "dialogflow.googleapis.com/Environment"
+    }
+  ];
+
+  // Required. The environment to create.
+  Environment environment = 2 [(google.api.field_behavior) = REQUIRED];
+
+  // Required. The unique id of the new environment.
+  string environment_id = 3 [(google.api.field_behavior) = REQUIRED];
+}
+
+// The request message for [Environments.UpdateEnvironment][google.cloud.dialogflow.v2beta1.Environments.UpdateEnvironment].
+message UpdateEnvironmentRequest {
+  // Required. The environment to update.
+  Environment environment = 1 [
+    (google.api.field_behavior) = REQUIRED
+  ];
+
+  // Required. The mask to control which fields get updated.
+  google.protobuf.FieldMask update_mask = 2 [(google.api.field_behavior) = REQUIRED];
+
+  // Optional. This field is used to prevent accidental overwrite of the draft
+  // environment, which is an operation that cannot be undone. To confirm that
+  // the caller desires this overwrite, this field must be explicitly set to
+  // true when updating the draft environment (environment ID = `-`).
+  bool allow_load_to_draft_and_discard_changes = 3 [(google.api.field_behavior) = OPTIONAL];
+}
+
+// The request message for [Environments.DeleteEnvironment][google.cloud.dialogflow.v2beta1.Environments.DeleteEnvironment].
+message DeleteEnvironmentRequest {
+  // Required. The name of the environment to delete.
+  // / Format:
+  // - `projects//agent/environments/`
+  // - `projects//locations//agent/environments/`
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "dialogflow.googleapis.com/Environment"
+    }
+  ];
+}
+
+// The request message for [Environments.GetEnvironmentHistory][google.cloud.dialogflow.v2beta1.Environments.GetEnvironmentHistory].
+message GetEnvironmentHistoryRequest {
+  // Required. The name of the environment to retrieve history for.
+  // Supported formats:
+  // - `projects//agent/environments/`
+  // - `projects//locations//agent/environments/`
+  string parent = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "dialogflow.googleapis.com/Environment"
+    }
+  ];
+
+  // Optional. The maximum number of items to return in a single page. By default 100 and
+  // at most 1000.
+  int32 page_size = 2 [(google.api.field_behavior) = OPTIONAL];
+
+  // Optional. The next_page_token value returned from a previous list request.
+  string page_token = 3 [(google.api.field_behavior) = OPTIONAL];
+}
+
+// The response message for [Environments.GetEnvironmentHistory][google.cloud.dialogflow.v2beta1.Environments.GetEnvironmentHistory].
+message EnvironmentHistory {
+  // Represents an environment history entry.
+  message Entry {
+    // The agent version loaded into this environment history entry.
+    string agent_version = 1;
+
+    // The developer-provided description for this environment history entry.
+    string description = 2;
+
+    // The creation time of this environment history entry.
+    google.protobuf.Timestamp create_time = 3;
+  }
+
+  // Output only. The name of the environment this history is for.
+  // Supported formats:
+  // - `projects//agent/environments/`
+  // - `projects//locations//agent/environments/`
+  string parent = 1 [(google.api.field_behavior) = OUTPUT_ONLY];
+
+  // Output only. The list of agent environments. There will be a maximum number of items
+  // returned based on the page_size field in the request.
+  repeated Entry entries = 2 [(google.api.field_behavior) = OUTPUT_ONLY];
+
+  // Output only. Token to retrieve the next page of results, or empty if there are no
+  // more results in the list.
+  string next_page_token = 3 [(google.api.field_behavior) = OUTPUT_ONLY];
+}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/fulfillment.proto b/proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/fulfillment.proto
new file mode 100644
index 000000000..d24667560
--- /dev/null
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/fulfillment.proto
@@ -0,0 +1,176 @@
+// Copyright 2021 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+syntax = "proto3";
+
+package google.cloud.dialogflow.v2beta1;
+
+import "google/api/annotations.proto";
+import "google/api/client.proto";
+import "google/api/field_behavior.proto";
+import "google/api/resource.proto";
+import "google/protobuf/field_mask.proto";
+
+option cc_enable_arenas = true;
+option csharp_namespace = "Google.Cloud.Dialogflow.V2beta1";
+option go_package = "google.golang.org/genproto/googleapis/cloud/dialogflow/v2beta1;dialogflow";
+option java_multiple_files = true;
+option java_outer_classname = "FulfillmentProto";
+option java_package = "com.google.cloud.dialogflow.v2beta1";
+option objc_class_prefix = "DF";
+
+// Service for managing [Fulfillments][google.cloud.dialogflow.v2beta1.Fulfillment].
+service Fulfillments {
+  option (google.api.default_host) = "dialogflow.googleapis.com";
+  option (google.api.oauth_scopes) =
+      "https://www.googleapis.com/auth/cloud-platform,"
+      "https://www.googleapis.com/auth/dialogflow";
+
+  // Retrieves the fulfillment.
+  rpc GetFulfillment(GetFulfillmentRequest) returns (Fulfillment) {
+    option (google.api.http) = {
+      get: "/v2beta1/{name=projects/*/agent/fulfillment}"
+      additional_bindings {
+        get: "/v2beta1/{name=projects/*/locations/*/agent/fulfillment}"
+      }
+    };
+    option (google.api.method_signature) = "name";
+  }
+
+  // Updates the fulfillment.
+  rpc UpdateFulfillment(UpdateFulfillmentRequest) returns (Fulfillment) {
+    option (google.api.http) = {
+      patch: "/v2beta1/{fulfillment.name=projects/*/agent/fulfillment}"
+      body: "fulfillment"
+      additional_bindings {
+        patch: "/v2beta1/{fulfillment.name=projects/*/locations/*/agent/fulfillment}"
+        body: "fulfillment"
+      }
+    };
+    option (google.api.method_signature) = "fulfillment,update_mask";
+  }
+}
+
+// By default, your agent responds to a matched intent with a static response.
+// As an alternative, you can provide a more dynamic response by using
+// fulfillment. When you enable fulfillment for an intent, Dialogflow responds
+// to that intent by calling a service that you define. For example, if an
+// end-user wants to schedule a haircut on Friday, your service can check your
+// database and respond to the end-user with availability information for
+// Friday.
+//
+// For more information, see the [fulfillment
+// guide](https://cloud.google.com/dialogflow/docs/fulfillment-overview).
+message Fulfillment {
+  option (google.api.resource) = {
+    type: "dialogflow.googleapis.com/Fulfillment"
+    pattern: "projects/{project}/agent/fulfillment"
+    pattern: "projects/{project}/locations/{location}/agent/fulfillment"
+  };
+
+  // Represents configuration for a generic web service.
+  // Dialogflow supports two mechanisms for authentications:
+  // - Basic authentication with username and password.
+  // - Authentication with additional authentication headers.
+  // More information could be found at:
+  // https://cloud.google.com/dialogflow/docs/fulfillment-configure.
+  message GenericWebService {
+    // Required. The fulfillment URI for receiving POST requests.
+    // It must use https protocol.
+    string uri = 1 [(google.api.field_behavior) = REQUIRED];
+
+    // The user name for HTTP Basic authentication.
+    string username = 2;
+
+    // The password for HTTP Basic authentication.
+    string password = 3;
+
+    // The HTTP request headers to send together with fulfillment requests.
+    map request_headers = 4;
+
+    // Optional. Indicates if generic web service is created through Cloud Functions
+    // integration. Defaults to false.
+    //
+    // is_cloud_function is deprecated. Cloud functions can be configured by
+    // its uri as a regular web service now.
+    bool is_cloud_function = 5 [
+      deprecated = true,
+      (google.api.field_behavior) = OPTIONAL
+    ];
+  }
+
+  // Whether fulfillment is enabled for the specific feature.
+  message Feature {
+    // The type of the feature.
+    enum Type {
+      // Feature type not specified.
+      TYPE_UNSPECIFIED = 0;
+
+      // Fulfillment is enabled for SmallTalk.
+      SMALLTALK = 1;
+    }
+
+    // The type of the feature that enabled for fulfillment.
+    Type type = 1;
+  }
+
+  // Required. The unique identifier of the fulfillment.
+  // Supported formats:
+  // - `projects//agent/fulfillment`
+  // - `projects//locations//agent/fulfillment`
+  //
+  // This field is not used for Fulfillment in an Environment.
+  string name = 1 [(google.api.field_behavior) = REQUIRED];
+
+  // The human-readable name of the fulfillment, unique within the agent.
+  //
+  // This field is not used for Fulfillment in an Environment.
+  string display_name = 2;
+
+  // Required. The fulfillment configuration.
+  oneof fulfillment {
+    // Configuration for a generic web service.
+    GenericWebService generic_web_service = 3;
+  }
+
+  // Whether fulfillment is enabled.
+  bool enabled = 4;
+
+  // The field defines whether the fulfillment is enabled for certain features.
+  repeated Feature features = 5;
+}
+
+// The request message for [Fulfillments.GetFulfillment][google.cloud.dialogflow.v2beta1.Fulfillments.GetFulfillment].
+message GetFulfillmentRequest {
+  // Required. The name of the fulfillment.
+  // Supported formats:
+  // - `projects//agent/fulfillment`
+  // - `projects//locations//agent/fulfillment`
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "dialogflow.googleapis.com/Fulfillment"
+    }
+  ];
+}
+
+// The request message for [Fulfillments.UpdateFulfillment][google.cloud.dialogflow.v2beta1.Fulfillments.UpdateFulfillment].
+message UpdateFulfillmentRequest {
+  // Required. The fulfillment to update.
+  Fulfillment fulfillment = 1 [(google.api.field_behavior) = REQUIRED];
+
+  // Required. The mask to control which fields get updated. If the mask is not
+  // present, all fields will be updated.
+  google.protobuf.FieldMask update_mask = 2 [(google.api.field_behavior) = REQUIRED];
+}
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/participant.proto b/proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/participant.proto
index 39d0384ea..d4400025e 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/participant.proto
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/participant.proto
@@ -21,6 +21,7 @@ import "google/api/client.proto";
 import "google/api/field_behavior.proto";
 import "google/api/resource.proto";
 import "google/cloud/dialogflow/v2beta1/audio_config.proto";
+import "google/cloud/dialogflow/v2beta1/gcs.proto";
 import "google/cloud/dialogflow/v2beta1/session.proto";
 import "google/protobuf/any.proto";
 import "google/protobuf/duration.proto";
@@ -97,7 +98,7 @@ service Participants {
   //
   // Note: Always use agent versions for production traffic
   // sent to virtual agents. See [Versions and
-  // environments(https://cloud.google.com/dialogflow/es/docs/agents-versions).
+  // environments](https://cloud.google.com/dialogflow/es/docs/agents-versions).
   rpc AnalyzeContent(AnalyzeContentRequest) returns (AnalyzeContentResponse) {
     option (google.api.http) = {
       post: "/v2beta1/{participant=projects/*/conversations/*/participants/*}:analyzeContent"
@@ -168,7 +169,7 @@ service Participants {
   // This method should be used by human agent client software to fetch auto
   // generated suggestions in real-time, while the conversation with an end user
   // is in progress. The functionality is implemented in terms of the
-  // [list pagination](https://cloud.google.com/apis/design/design_patterns#list_pagination)
+  // [list pagination](/apis/design/design_patterns#list_pagination)
   // design pattern. The client app should use the `next_page_token` field
   // to fetch the next batch of suggestions. `suggestions` are sorted by
   // `create_time` in descending order.
@@ -539,7 +540,6 @@ message AnalyzeContentResponse {
   DtmfParameters dtmf_parameters = 9;
 }
 
-
 // Represents a part of a message possibly annotated with an entity. The part
 // can be an entity or purely a part of the message between two entities or
 // message start/end.
@@ -914,7 +914,7 @@ message ListSuggestionsRequest {
   // `create_time` and `create_time_epoch_microseconds` are supported.
   // `create_time` only support milliseconds accuracy. E.g.,
   // `create_time_epoch_microseconds > 1551790877964485` or
-  // `create_time > 2017-01-15T01:30:15.01Z`
+  // `create_time > "2017-01-15T01:30:15.01Z"`
   //
   // For more information about filtering, see
   // [API Filtering](https://aip.dev/160).
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/session.proto b/proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/session.proto
index bd53acafe..2eba19bd3 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/session.proto
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/session.proto
@@ -44,6 +44,7 @@ option (google.api.resource_definition) = {
   pattern: "projects/{project}/agent/sessions/{session}"
   pattern: "projects/{project}/agent/environments/{environment}/users/{user}/sessions/{session}"
   pattern: "projects/{project}/locations/{location}/agent/sessions/{session}"
+  pattern: "projects/{project}/locations/{location}/agent/environments/{environment}/users/{user}/sessions/{session}"
 };
 
 // A service used for session interactions.
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/session_entity_type.proto b/proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/session_entity_type.proto
index c692a6b94..c38902b31 100644
--- a/proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/session_entity_type.proto
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/session_entity_type.proto
@@ -171,6 +171,7 @@ message SessionEntityType {
     pattern: "projects/{project}/agent/sessions/{session}/entityTypes/{entity_type}"
     pattern: "projects/{project}/locations/{location}/agent/sessions/{session}/entityTypes/{entity_type}"
     pattern: "projects/{project}/agent/environments/{environment}/users/{user}/sessions/{session}/entityTypes/{entity_type}"
+    pattern: "projects/{project}/locations/{location}/agent/environments/{environment}/users/{user}/sessions/{session}/entityTypes/{entity_type}"
   };
 
   // The types of modifications for a session entity type.
diff --git a/proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/version.proto b/proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/version.proto
new file mode 100644
index 000000000..e3752610e
--- /dev/null
+++ b/proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/version.proto
@@ -0,0 +1,261 @@
+// Copyright 2021 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+syntax = "proto3";
+
+package google.cloud.dialogflow.v2beta1;
+
+import "google/api/annotations.proto";
+import "google/api/client.proto";
+import "google/api/field_behavior.proto";
+import "google/api/resource.proto";
+import "google/protobuf/empty.proto";
+import "google/protobuf/field_mask.proto";
+import "google/protobuf/timestamp.proto";
+
+option cc_enable_arenas = true;
+option csharp_namespace = "Google.Cloud.Dialogflow.V2beta1";
+option go_package = "google.golang.org/genproto/googleapis/cloud/dialogflow/v2beta1;dialogflow";
+option java_multiple_files = true;
+option java_outer_classname = "VersionProto";
+option java_package = "com.google.cloud.dialogflow.v2beta1";
+option objc_class_prefix = "DF";
+
+// Service for managing [Versions][google.cloud.dialogflow.v2beta1.Version].
+service Versions {
+  option (google.api.default_host) = "dialogflow.googleapis.com";
+  option (google.api.oauth_scopes) =
+      "https://www.googleapis.com/auth/cloud-platform,"
+      "https://www.googleapis.com/auth/dialogflow";
+
+  // Returns the list of all versions of the specified agent.
+  rpc ListVersions(ListVersionsRequest) returns (ListVersionsResponse) {
+    option (google.api.http) = {
+      get: "/v2beta1/{parent=projects/*/agent}/versions"
+      additional_bindings {
+        get: "/v2beta1/{parent=projects/*/locations/*/agent}/versions"
+      }
+    };
+    option (google.api.method_signature) = "parent";
+  }
+
+  // Retrieves the specified agent version.
+  rpc GetVersion(GetVersionRequest) returns (Version) {
+    option (google.api.http) = {
+      get: "/v2beta1/{name=projects/*/agent/versions/*}"
+      additional_bindings {
+        get: "/v2beta1/{name=projects/*/locations/*/agent/versions/*}"
+      }
+    };
+    option (google.api.method_signature) = "name";
+  }
+
+  // Creates an agent version.
+  //
+  // The new version points to the agent instance in the "default" environment.
+  rpc CreateVersion(CreateVersionRequest) returns (Version) {
+    option (google.api.http) = {
+      post: "/v2beta1/{parent=projects/*/agent}/versions"
+      body: "version"
+      additional_bindings {
+        post: "/v2beta1/{parent=projects/*/locations/*/agent}/versions"
+        body: "version"
+      }
+    };
+    option (google.api.method_signature) = "parent,version";
+  }
+
+  // Updates the specified agent version.
+  //
+  // Note that this method does not allow you to update the state of the agent
+  // the given version points to. It allows you to update only mutable
+  // properties of the version resource.
+  rpc UpdateVersion(UpdateVersionRequest) returns (Version) {
+    option (google.api.http) = {
+      patch: "/v2beta1/{version.name=projects/*/agent/versions/*}"
+      body: "version"
+      additional_bindings {
+        patch: "/v2beta1/{version.name=projects/*/locations/*/agent/versions/*}"
+        body: "version"
+      }
+    };
+    option (google.api.method_signature) = "version,update_mask";
+  }
+
+  // Delete the specified agent version.
+  rpc DeleteVersion(DeleteVersionRequest) returns (google.protobuf.Empty) {
+    option (google.api.http) = {
+      delete: "/v2beta1/{name=projects/*/agent/versions/*}"
+      additional_bindings {
+        delete: "/v2beta1/{name=projects/*/locations/*/agent/versions/*}"
+      }
+    };
+    option (google.api.method_signature) = "name";
+  }
+}
+
+// You can create multiple versions of your agent and publish them to separate
+// environments.
+//
+// When you edit an agent, you are editing the draft agent. At any point, you
+// can save the draft agent as an agent version, which is an immutable snapshot
+// of your agent.
+//
+// When you save the draft agent, it is published to the default environment.
+// When you create agent versions, you can publish them to custom environments.
+// You can create a variety of custom environments for:
+//
+// - testing
+// - development
+// - production
+// - etc.
+//
+// For more information, see the [versions and environments
+// guide](https://cloud.google.com/dialogflow/docs/agents-versions).
+message Version {
+  option (google.api.resource) = {
+    type: "dialogflow.googleapis.com/Version"
+    pattern: "projects/{project}/agent/versions/{version}"
+    pattern: "projects/{project}/locations/{location}/agent/versions/{version}"
+  };
+
+  // The status of a version.
+  enum VersionStatus {
+    // Not specified. This value is not used.
+    VERSION_STATUS_UNSPECIFIED = 0;
+
+    // Version is not ready to serve (e.g. training is in progress).
+    IN_PROGRESS = 1;
+
+    // Version is ready to serve.
+    READY = 2;
+
+    // Version training failed.
+    FAILED = 3;
+  }
+
+  // Output only. The unique identifier of this agent version.
+  // Supported formats:
+  // - `projects//agent/versions/`
+  // - `projects//locations//agent/versions/`
+  string name = 1 [(google.api.field_behavior) = OUTPUT_ONLY];
+
+  // Optional. The developer-provided description of this version.
+  string description = 2 [(google.api.field_behavior) = OPTIONAL];
+
+  // Output only. The sequential number of this version. This field is read-only which means
+  // it cannot be set by create and update methods.
+  int32 version_number = 3 [(google.api.field_behavior) = OUTPUT_ONLY];
+
+  // Output only. The creation time of this version. This field is read-only, i.e., it cannot
+  // be set by create and update methods.
+  google.protobuf.Timestamp create_time = 4 [(google.api.field_behavior) = OUTPUT_ONLY];
+
+  // Output only. The status of this version. This field is read-only and cannot be set by
+  // create and update methods.
+  VersionStatus status = 6 [(google.api.field_behavior) = OUTPUT_ONLY];
+}
+
+// The request message for [Versions.ListVersions][google.cloud.dialogflow.v2beta1.Versions.ListVersions].
+message ListVersionsRequest {
+  // Required. The agent to list all versions from.
+  // Supported formats:
+  // - `projects//agent`
+  // - `projects//locations//agent`
+  string parent = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      child_type: "dialogflow.googleapis.com/Version"
+    }
+  ];
+
+  // Optional. The maximum number of items to return in a single page. By default 100 and
+  // at most 1000.
+  int32 page_size = 2 [(google.api.field_behavior) = OPTIONAL];
+
+  // Optional. The next_page_token value returned from a previous list request.
+  string page_token = 3 [(google.api.field_behavior) = OPTIONAL];
+}
+
+// The response message for [Versions.ListVersions][google.cloud.dialogflow.v2beta1.Versions.ListVersions].
+message ListVersionsResponse {
+  // The list of agent versions. There will be a maximum number of items
+  // returned based on the page_size field in the request.
+  repeated Version versions = 1;
+
+  // Token to retrieve the next page of results, or empty if there are no
+  // more results in the list.
+  string next_page_token = 2;
+}
+
+// The request message for [Versions.GetVersion][google.cloud.dialogflow.v2beta1.Versions.GetVersion].
+message GetVersionRequest {
+  // Required. The name of the version.
+  // Supported formats:
+  // - `projects//agent/versions/`
+  // - `projects//locations//agent/versions/`
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "dialogflow.googleapis.com/Version"
+    }
+  ];
+}
+
+// The request message for [Versions.CreateVersion][google.cloud.dialogflow.v2beta1.Versions.CreateVersion].
+message CreateVersionRequest {
+  // Required. The agent to create a version for.
+  // Supported formats:
+  // - `projects//agent`
+  // - `projects//locations//agent`
+  string parent = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      child_type: "dialogflow.googleapis.com/Version"
+    }
+  ];
+
+  // Required. The version to create.
+  Version version = 2 [(google.api.field_behavior) = REQUIRED];
+}
+
+// The request message for [Versions.UpdateVersion][google.cloud.dialogflow.v2beta1.Versions.UpdateVersion].
+message UpdateVersionRequest {
+  // Required. The version to update.
+  // Supported formats:
+  // - `projects//agent/versions/`
+  // - `projects//locations//agent/versions/`
+  Version version = 1 [(google.api.field_behavior) = REQUIRED];
+
+  // Required. The mask to control which fields get updated.
+  google.protobuf.FieldMask update_mask = 2 [(google.api.field_behavior) = REQUIRED];
+}
+
+// The request message for [Versions.DeleteVersion][google.cloud.dialogflow.v2beta1.Versions.DeleteVersion].
+message DeleteVersionRequest {
+  // Required. The name of the version to delete.
+  // Supported formats:
+  // - `projects//agent/versions/`
+  // - `projects//locations//agent/versions/`
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "dialogflow.googleapis.com/Version"
+    }
+  ];
+}
diff --git a/synth.metadata b/synth.metadata
index d2a435a1c..947435a7b 100644
--- a/synth.metadata
+++ b/synth.metadata
@@ -11,16 +11,16 @@
       "git": {
         "name": "googleapis",
         "remote": "https://github.com/googleapis/googleapis.git",
-        "sha": "5efeb79eed444f14cf2cf89516dbf9ece86a4a0c",
-        "internalRef": "371848474"
+        "sha": "162641cfe5573c648df679a6dd30385650a08704",
+        "internalRef": "373400747"
       }
     },
     {
       "git": {
         "name": "googleapis",
         "remote": "https://github.com/googleapis/googleapis.git",
-        "sha": "5efeb79eed444f14cf2cf89516dbf9ece86a4a0c",
-        "internalRef": "371848474"
+        "sha": "162641cfe5573c648df679a6dd30385650a08704",
+        "internalRef": "373400747"
       }
     },
     {
@@ -50,1159 +50,5 @@
         "generator": "bazel"
       }
     }
-  ],
-  "generatedFiles": [
-    ".github/CODEOWNERS",
-    ".github/ISSUE_TEMPLATE/bug_report.md",
-    ".github/ISSUE_TEMPLATE/feature_request.md",
-    ".github/ISSUE_TEMPLATE/support_request.md",
-    ".github/PULL_REQUEST_TEMPLATE.md",
-    ".github/blunderbuss.yml",
-    ".github/generated-files-bot.yml",
-    ".github/readme/synth.py",
-    ".github/release-please.yml",
-    ".github/snippet-bot.yml",
-    ".github/sync-repo-settings.yaml",
-    ".github/trusted-contribution.yml",
-    ".github/workflows/approve-readme.yaml",
-    ".github/workflows/auto-release.yaml",
-    ".github/workflows/ci.yaml",
-    ".github/workflows/samples.yaml",
-    ".kokoro/build.bat",
-    ".kokoro/build.sh",
-    ".kokoro/coerce_logs.sh",
-    ".kokoro/common.cfg",
-    ".kokoro/common.sh",
-    ".kokoro/continuous/common.cfg",
-    ".kokoro/continuous/java8.cfg",
-    ".kokoro/continuous/readme.cfg",
-    ".kokoro/dependencies.sh",
-    ".kokoro/nightly/common.cfg",
-    ".kokoro/nightly/integration.cfg",
-    ".kokoro/nightly/java11.cfg",
-    ".kokoro/nightly/java7.cfg",
-    ".kokoro/nightly/java8-osx.cfg",
-    ".kokoro/nightly/java8-win.cfg",
-    ".kokoro/nightly/java8.cfg",
-    ".kokoro/nightly/samples.cfg",
-    ".kokoro/populate-secrets.sh",
-    ".kokoro/presubmit/clirr.cfg",
-    ".kokoro/presubmit/common.cfg",
-    ".kokoro/presubmit/dependencies.cfg",
-    ".kokoro/presubmit/integration.cfg",
-    ".kokoro/presubmit/java11.cfg",
-    ".kokoro/presubmit/java7.cfg",
-    ".kokoro/presubmit/java8-osx.cfg",
-    ".kokoro/presubmit/java8-win.cfg",
-    ".kokoro/presubmit/java8.cfg",
-    ".kokoro/presubmit/linkage-monitor.cfg",
-    ".kokoro/presubmit/lint.cfg",
-    ".kokoro/presubmit/samples.cfg",
-    ".kokoro/readme.sh",
-    ".kokoro/release/bump_snapshot.cfg",
-    ".kokoro/release/common.cfg",
-    ".kokoro/release/common.sh",
-    ".kokoro/release/drop.cfg",
-    ".kokoro/release/drop.sh",
-    ".kokoro/release/promote.cfg",
-    ".kokoro/release/promote.sh",
-    ".kokoro/release/publish_javadoc.cfg",
-    ".kokoro/release/publish_javadoc.sh",
-    ".kokoro/release/publish_javadoc11.cfg",
-    ".kokoro/release/publish_javadoc11.sh",
-    ".kokoro/release/snapshot.cfg",
-    ".kokoro/release/snapshot.sh",
-    ".kokoro/release/stage.cfg",
-    ".kokoro/release/stage.sh",
-    ".kokoro/trampoline.sh",
-    "CODE_OF_CONDUCT.md",
-    "CONTRIBUTING.md",
-    "LICENSE",
-    "codecov.yaml",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/AgentsClient.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/AgentsSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/AnswerRecordsClient.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/AnswerRecordsSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/ContextsClient.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/ContextsSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/ConversationProfilesClient.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/ConversationProfilesSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/ConversationsClient.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/ConversationsSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/DocumentsClient.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/DocumentsSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/EntityTypesClient.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/EntityTypesSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/EnvironmentsClient.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/EnvironmentsSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/FulfillmentsClient.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/FulfillmentsSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/IntentsClient.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/IntentsSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/KnowledgeBasesClient.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/KnowledgeBasesSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/ParticipantsClient.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/ParticipantsSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/SessionEntityTypesClient.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/SessionEntityTypesSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/SessionsClient.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/SessionsSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/VersionsClient.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/VersionsSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/gapic_metadata.json",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/package-info.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/AgentsStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/AgentsStubSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/AnswerRecordsStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/AnswerRecordsStubSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/ContextsStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/ContextsStubSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/ConversationProfilesStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/ConversationProfilesStubSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/ConversationsStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/ConversationsStubSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/DocumentsStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/DocumentsStubSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/EntityTypesStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/EntityTypesStubSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/EnvironmentsStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/EnvironmentsStubSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/FulfillmentsStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/FulfillmentsStubSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/GrpcAgentsCallableFactory.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/GrpcAgentsStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/GrpcAnswerRecordsCallableFactory.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/GrpcAnswerRecordsStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/GrpcContextsCallableFactory.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/GrpcContextsStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/GrpcConversationProfilesCallableFactory.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/GrpcConversationProfilesStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/GrpcConversationsCallableFactory.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/GrpcConversationsStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/GrpcDocumentsCallableFactory.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/GrpcDocumentsStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/GrpcEntityTypesCallableFactory.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/GrpcEntityTypesStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/GrpcEnvironmentsCallableFactory.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/GrpcEnvironmentsStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/GrpcFulfillmentsCallableFactory.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/GrpcFulfillmentsStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/GrpcIntentsCallableFactory.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/GrpcIntentsStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/GrpcKnowledgeBasesCallableFactory.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/GrpcKnowledgeBasesStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/GrpcParticipantsCallableFactory.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/GrpcParticipantsStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/GrpcSessionEntityTypesCallableFactory.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/GrpcSessionEntityTypesStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/GrpcSessionsCallableFactory.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/GrpcSessionsStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/GrpcVersionsCallableFactory.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/GrpcVersionsStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/IntentsStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/IntentsStubSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/KnowledgeBasesStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/KnowledgeBasesStubSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/ParticipantsStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/ParticipantsStubSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/SessionEntityTypesStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/SessionEntityTypesStubSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/SessionsStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/SessionsStubSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/VersionsStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2/stub/VersionsStubSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/AgentsClient.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/AgentsSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/AnswerRecordsClient.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/AnswerRecordsSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/ContextsClient.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/ContextsSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/ConversationProfilesClient.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/ConversationProfilesSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/ConversationsClient.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/ConversationsSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/DocumentsClient.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/DocumentsSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/EntityTypesClient.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/EntityTypesSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/EnvironmentsClient.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/EnvironmentsSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/IntentsClient.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/IntentsSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/KnowledgeBasesClient.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/KnowledgeBasesSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/ParticipantsClient.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/ParticipantsSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/SessionEntityTypesClient.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/SessionEntityTypesSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/SessionsClient.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/SessionsSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/gapic_metadata.json",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/package-info.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/AgentsStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/AgentsStubSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/AnswerRecordsStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/AnswerRecordsStubSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/ContextsStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/ContextsStubSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/ConversationProfilesStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/ConversationProfilesStubSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/ConversationsStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/ConversationsStubSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/DocumentsStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/DocumentsStubSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/EntityTypesStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/EntityTypesStubSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/EnvironmentsStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/EnvironmentsStubSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/GrpcAgentsCallableFactory.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/GrpcAgentsStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/GrpcAnswerRecordsCallableFactory.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/GrpcAnswerRecordsStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/GrpcContextsCallableFactory.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/GrpcContextsStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/GrpcConversationProfilesCallableFactory.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/GrpcConversationProfilesStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/GrpcConversationsCallableFactory.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/GrpcConversationsStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/GrpcDocumentsCallableFactory.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/GrpcDocumentsStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/GrpcEntityTypesCallableFactory.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/GrpcEntityTypesStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/GrpcEnvironmentsCallableFactory.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/GrpcEnvironmentsStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/GrpcIntentsCallableFactory.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/GrpcIntentsStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/GrpcKnowledgeBasesCallableFactory.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/GrpcKnowledgeBasesStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/GrpcParticipantsCallableFactory.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/GrpcParticipantsStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/GrpcSessionEntityTypesCallableFactory.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/GrpcSessionEntityTypesStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/GrpcSessionsCallableFactory.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/GrpcSessionsStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/IntentsStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/IntentsStubSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/KnowledgeBasesStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/KnowledgeBasesStubSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/ParticipantsStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/ParticipantsStubSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/SessionEntityTypesStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/SessionEntityTypesStubSettings.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/SessionsStub.java",
-    "google-cloud-dialogflow/src/main/java/com/google/cloud/dialogflow/v2beta1/stub/SessionsStubSettings.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2/AgentsClientTest.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2/AnswerRecordsClientTest.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2/ContextsClientTest.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2/ConversationProfilesClientTest.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2/ConversationsClientTest.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2/DocumentsClientTest.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2/EntityTypesClientTest.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2/EnvironmentsClientTest.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2/FulfillmentsClientTest.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2/IntentsClientTest.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2/KnowledgeBasesClientTest.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2/MockAgents.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2/MockAgentsImpl.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2/MockAnswerRecords.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2/MockAnswerRecordsImpl.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2/MockContexts.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2/MockContextsImpl.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2/MockConversationProfiles.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2/MockConversationProfilesImpl.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2/MockConversations.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2/MockConversationsImpl.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2/MockDocuments.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2/MockDocumentsImpl.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2/MockEntityTypes.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2/MockEntityTypesImpl.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2/MockEnvironments.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2/MockEnvironmentsImpl.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2/MockFulfillments.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2/MockFulfillmentsImpl.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2/MockIntents.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2/MockIntentsImpl.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2/MockKnowledgeBases.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2/MockKnowledgeBasesImpl.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2/MockParticipants.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2/MockParticipantsImpl.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2/MockSessionEntityTypes.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2/MockSessionEntityTypesImpl.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2/MockSessions.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2/MockSessionsImpl.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2/MockVersions.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2/MockVersionsImpl.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2/ParticipantsClientTest.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2/SessionEntityTypesClientTest.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2/SessionsClientTest.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2/VersionsClientTest.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/AgentsClientTest.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/AnswerRecordsClientTest.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/ContextsClientTest.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/ConversationProfilesClientTest.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/ConversationsClientTest.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/DocumentsClientTest.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/EntityTypesClientTest.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/EnvironmentsClientTest.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/IntentsClientTest.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/KnowledgeBasesClientTest.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/MockAgents.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/MockAgentsImpl.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/MockAnswerRecords.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/MockAnswerRecordsImpl.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/MockContexts.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/MockContextsImpl.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/MockConversationProfiles.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/MockConversationProfilesImpl.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/MockConversations.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/MockConversationsImpl.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/MockDocuments.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/MockDocumentsImpl.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/MockEntityTypes.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/MockEntityTypesImpl.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/MockEnvironments.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/MockEnvironmentsImpl.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/MockIntents.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/MockIntentsImpl.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/MockKnowledgeBases.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/MockKnowledgeBasesImpl.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/MockParticipants.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/MockParticipantsImpl.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/MockSessionEntityTypes.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/MockSessionEntityTypesImpl.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/MockSessions.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/MockSessionsImpl.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/ParticipantsClientTest.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/SessionEntityTypesClientTest.java",
-    "google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/SessionsClientTest.java",
-    "grpc-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/AgentsGrpc.java",
-    "grpc-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/AnswerRecordsGrpc.java",
-    "grpc-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ContextsGrpc.java",
-    "grpc-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ConversationProfilesGrpc.java",
-    "grpc-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ConversationsGrpc.java",
-    "grpc-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/DocumentsGrpc.java",
-    "grpc-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/EntityTypesGrpc.java",
-    "grpc-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/EnvironmentsGrpc.java",
-    "grpc-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/FulfillmentsGrpc.java",
-    "grpc-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/IntentsGrpc.java",
-    "grpc-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/KnowledgeBasesGrpc.java",
-    "grpc-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ParticipantsGrpc.java",
-    "grpc-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/SessionEntityTypesGrpc.java",
-    "grpc-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/SessionsGrpc.java",
-    "grpc-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/VersionsGrpc.java",
-    "grpc-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AgentsGrpc.java",
-    "grpc-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AnswerRecordsGrpc.java",
-    "grpc-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ContextsGrpc.java",
-    "grpc-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ConversationProfilesGrpc.java",
-    "grpc-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ConversationsGrpc.java",
-    "grpc-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/DocumentsGrpc.java",
-    "grpc-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/EntityTypesGrpc.java",
-    "grpc-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/EnvironmentsGrpc.java",
-    "grpc-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/IntentsGrpc.java",
-    "grpc-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/KnowledgeBasesGrpc.java",
-    "grpc-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ParticipantsGrpc.java",
-    "grpc-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SessionEntityTypesGrpc.java",
-    "grpc-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SessionsGrpc.java",
-    "java.header",
-    "license-checks.xml",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/Agent.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/AgentAssistantFeedback.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/AgentAssistantFeedbackOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/AgentAssistantRecord.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/AgentAssistantRecordOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/AgentName.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/AgentOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/AgentProto.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/AnalyzeContentRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/AnalyzeContentRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/AnalyzeContentResponse.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/AnalyzeContentResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/AnnotatedMessagePart.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/AnnotatedMessagePartOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/AnswerFeedback.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/AnswerFeedbackOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/AnswerRecord.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/AnswerRecordName.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/AnswerRecordOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/AnswerRecordsProto.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ArticleAnswer.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ArticleAnswerOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/AudioConfigProto.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/AudioEncoding.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/AutomatedAgentConfig.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/AutomatedAgentConfigOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/AutomatedAgentReply.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/AutomatedAgentReplyOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/BatchCreateEntitiesRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/BatchCreateEntitiesRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/BatchDeleteEntitiesRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/BatchDeleteEntitiesRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/BatchDeleteEntityTypesRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/BatchDeleteEntityTypesRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/BatchDeleteIntentsRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/BatchDeleteIntentsRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/BatchUpdateEntitiesRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/BatchUpdateEntitiesRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/BatchUpdateEntityTypesRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/BatchUpdateEntityTypesRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/BatchUpdateEntityTypesResponse.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/BatchUpdateEntityTypesResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/BatchUpdateIntentsRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/BatchUpdateIntentsRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/BatchUpdateIntentsResponse.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/BatchUpdateIntentsResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/CompleteConversationRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/CompleteConversationRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/Context.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ContextName.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ContextOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ContextProto.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/Conversation.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ConversationEvent.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ConversationEventOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ConversationEventProto.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ConversationModelName.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ConversationName.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ConversationOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ConversationPhoneNumber.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ConversationPhoneNumberOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ConversationProfile.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ConversationProfileName.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ConversationProfileOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ConversationProfileProto.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ConversationProto.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/CreateContextRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/CreateContextRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/CreateConversationProfileRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/CreateConversationProfileRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/CreateConversationRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/CreateConversationRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/CreateDocumentRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/CreateDocumentRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/CreateEntityTypeRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/CreateEntityTypeRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/CreateEnvironmentRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/CreateEnvironmentRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/CreateIntentRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/CreateIntentRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/CreateKnowledgeBaseRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/CreateKnowledgeBaseRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/CreateParticipantRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/CreateParticipantRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/CreateSessionEntityTypeRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/CreateSessionEntityTypeRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/CreateVersionRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/CreateVersionRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/DeleteAgentRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/DeleteAgentRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/DeleteAllContextsRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/DeleteAllContextsRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/DeleteContextRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/DeleteContextRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/DeleteConversationProfileRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/DeleteConversationProfileRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/DeleteDocumentRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/DeleteDocumentRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/DeleteEntityTypeRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/DeleteEntityTypeRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/DeleteEnvironmentRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/DeleteEnvironmentRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/DeleteIntentRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/DeleteIntentRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/DeleteKnowledgeBaseRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/DeleteKnowledgeBaseRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/DeleteSessionEntityTypeRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/DeleteSessionEntityTypeRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/DeleteVersionRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/DeleteVersionRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/DetectIntentRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/DetectIntentRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/DetectIntentResponse.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/DetectIntentResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/Document.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/DocumentName.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/DocumentOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/DocumentProto.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/DtmfParameters.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/DtmfParametersOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/EntityType.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/EntityTypeBatch.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/EntityTypeBatchOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/EntityTypeName.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/EntityTypeOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/EntityTypeProto.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/Environment.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/EnvironmentHistory.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/EnvironmentHistoryOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/EnvironmentName.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/EnvironmentOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/EnvironmentProto.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/EventInput.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/EventInputOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ExportAgentRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ExportAgentRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ExportAgentResponse.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ExportAgentResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/FaqAnswer.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/FaqAnswerOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/Fulfillment.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/FulfillmentName.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/FulfillmentOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/FulfillmentProto.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/GcsProto.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/GetAgentRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/GetAgentRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/GetContextRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/GetContextRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/GetConversationProfileRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/GetConversationProfileRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/GetConversationRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/GetConversationRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/GetDocumentRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/GetDocumentRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/GetEntityTypeRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/GetEntityTypeRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/GetEnvironmentHistoryRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/GetEnvironmentHistoryRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/GetEnvironmentRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/GetEnvironmentRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/GetFulfillmentRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/GetFulfillmentRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/GetIntentRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/GetIntentRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/GetKnowledgeBaseRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/GetKnowledgeBaseRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/GetParticipantRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/GetParticipantRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/GetSessionEntityTypeRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/GetSessionEntityTypeRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/GetValidationResultRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/GetValidationResultRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/GetVersionRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/GetVersionRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/HumanAgentAssistantConfig.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/HumanAgentAssistantConfigOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/HumanAgentAssistantEvent.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/HumanAgentAssistantEventOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/HumanAgentAssistantEventProto.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/HumanAgentHandoffConfig.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/HumanAgentHandoffConfigOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ImportAgentRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ImportAgentRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/InputAudioConfig.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/InputAudioConfigOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/Intent.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/IntentBatch.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/IntentBatchOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/IntentName.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/IntentOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/IntentProto.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/IntentView.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/KnowledgeBase.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/KnowledgeBaseName.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/KnowledgeBaseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/KnowledgeBaseProto.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/KnowledgeOperationMetadata.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/KnowledgeOperationMetadataOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListAnswerRecordsRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListAnswerRecordsRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListAnswerRecordsResponse.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListAnswerRecordsResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListContextsRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListContextsRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListContextsResponse.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListContextsResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListConversationProfilesRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListConversationProfilesRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListConversationProfilesResponse.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListConversationProfilesResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListConversationsRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListConversationsRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListConversationsResponse.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListConversationsResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListDocumentsRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListDocumentsRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListDocumentsResponse.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListDocumentsResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListEntityTypesRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListEntityTypesRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListEntityTypesResponse.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListEntityTypesResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListEnvironmentsRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListEnvironmentsRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListEnvironmentsResponse.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListEnvironmentsResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListIntentsRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListIntentsRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListIntentsResponse.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListIntentsResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListKnowledgeBasesRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListKnowledgeBasesRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListKnowledgeBasesResponse.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListKnowledgeBasesResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListMessagesRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListMessagesRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListMessagesResponse.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListMessagesResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListParticipantsRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListParticipantsRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListParticipantsResponse.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListParticipantsResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListSessionEntityTypesRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListSessionEntityTypesRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListSessionEntityTypesResponse.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListSessionEntityTypesResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListVersionsRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListVersionsRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListVersionsResponse.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ListVersionsResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/LocationName.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/LoggingConfig.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/LoggingConfigOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/Message.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/MessageAnnotation.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/MessageAnnotationOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/MessageName.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/MessageOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/NotificationConfig.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/NotificationConfigOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/OriginalDetectIntentRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/OriginalDetectIntentRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/OutputAudio.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/OutputAudioConfig.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/OutputAudioConfigOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/OutputAudioEncoding.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/OutputAudioOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/Participant.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ParticipantName.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ParticipantOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ParticipantProto.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ProjectName.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/QueryInput.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/QueryInputOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/QueryParameters.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/QueryParametersOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/QueryResult.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/QueryResultOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ReloadDocumentRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ReloadDocumentRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/RestoreAgentRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/RestoreAgentRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/SearchAgentsRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/SearchAgentsRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/SearchAgentsResponse.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/SearchAgentsResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/Sentiment.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/SentimentAnalysisRequestConfig.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/SentimentAnalysisRequestConfigOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/SentimentAnalysisResult.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/SentimentAnalysisResultOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/SentimentOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/SessionEntityType.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/SessionEntityTypeName.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/SessionEntityTypeOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/SessionEntityTypeProto.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/SessionName.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/SessionProto.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/SetAgentRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/SetAgentRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/SpeechContext.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/SpeechContextOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/SpeechModelVariant.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/SpeechToTextConfig.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/SpeechToTextConfigOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/SpeechWordInfo.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/SpeechWordInfoOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/SsmlVoiceGender.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/StreamingDetectIntentRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/StreamingDetectIntentRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/StreamingDetectIntentResponse.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/StreamingDetectIntentResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/StreamingRecognitionResult.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/StreamingRecognitionResultOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/SuggestArticlesRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/SuggestArticlesRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/SuggestArticlesResponse.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/SuggestArticlesResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/SuggestFaqAnswersRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/SuggestFaqAnswersRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/SuggestFaqAnswersResponse.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/SuggestFaqAnswersResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/SuggestionFeature.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/SuggestionFeatureOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/SuggestionResult.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/SuggestionResultOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/SynthesizeSpeechConfig.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/SynthesizeSpeechConfigOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/TextInput.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/TextInputOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/TextToSpeechSettings.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/TextToSpeechSettingsOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/TrainAgentRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/TrainAgentRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/UpdateAnswerRecordRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/UpdateAnswerRecordRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/UpdateContextRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/UpdateContextRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/UpdateConversationProfileRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/UpdateConversationProfileRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/UpdateDocumentRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/UpdateDocumentRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/UpdateEntityTypeRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/UpdateEntityTypeRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/UpdateEnvironmentRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/UpdateEnvironmentRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/UpdateFulfillmentRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/UpdateFulfillmentRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/UpdateIntentRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/UpdateIntentRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/UpdateKnowledgeBaseRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/UpdateKnowledgeBaseRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/UpdateParticipantRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/UpdateParticipantRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/UpdateSessionEntityTypeRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/UpdateSessionEntityTypeRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/UpdateVersionRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/UpdateVersionRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ValidationError.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ValidationErrorOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ValidationResult.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ValidationResultOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/ValidationResultProto.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/Version.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/VersionName.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/VersionOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/VersionProto.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/VoiceSelectionParams.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/VoiceSelectionParamsOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/WebhookProto.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/WebhookRequest.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/WebhookRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/WebhookResponse.java",
-    "proto-google-cloud-dialogflow-v2/src/main/java/com/google/cloud/dialogflow/v2/WebhookResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2/src/main/proto/google/cloud/dialogflow/v2/agent.proto",
-    "proto-google-cloud-dialogflow-v2/src/main/proto/google/cloud/dialogflow/v2/answer_record.proto",
-    "proto-google-cloud-dialogflow-v2/src/main/proto/google/cloud/dialogflow/v2/audio_config.proto",
-    "proto-google-cloud-dialogflow-v2/src/main/proto/google/cloud/dialogflow/v2/context.proto",
-    "proto-google-cloud-dialogflow-v2/src/main/proto/google/cloud/dialogflow/v2/conversation.proto",
-    "proto-google-cloud-dialogflow-v2/src/main/proto/google/cloud/dialogflow/v2/conversation_event.proto",
-    "proto-google-cloud-dialogflow-v2/src/main/proto/google/cloud/dialogflow/v2/conversation_profile.proto",
-    "proto-google-cloud-dialogflow-v2/src/main/proto/google/cloud/dialogflow/v2/document.proto",
-    "proto-google-cloud-dialogflow-v2/src/main/proto/google/cloud/dialogflow/v2/entity_type.proto",
-    "proto-google-cloud-dialogflow-v2/src/main/proto/google/cloud/dialogflow/v2/environment.proto",
-    "proto-google-cloud-dialogflow-v2/src/main/proto/google/cloud/dialogflow/v2/fulfillment.proto",
-    "proto-google-cloud-dialogflow-v2/src/main/proto/google/cloud/dialogflow/v2/gcs.proto",
-    "proto-google-cloud-dialogflow-v2/src/main/proto/google/cloud/dialogflow/v2/human_agent_assistant_event.proto",
-    "proto-google-cloud-dialogflow-v2/src/main/proto/google/cloud/dialogflow/v2/intent.proto",
-    "proto-google-cloud-dialogflow-v2/src/main/proto/google/cloud/dialogflow/v2/knowledge_base.proto",
-    "proto-google-cloud-dialogflow-v2/src/main/proto/google/cloud/dialogflow/v2/participant.proto",
-    "proto-google-cloud-dialogflow-v2/src/main/proto/google/cloud/dialogflow/v2/session.proto",
-    "proto-google-cloud-dialogflow-v2/src/main/proto/google/cloud/dialogflow/v2/session_entity_type.proto",
-    "proto-google-cloud-dialogflow-v2/src/main/proto/google/cloud/dialogflow/v2/validation_result.proto",
-    "proto-google-cloud-dialogflow-v2/src/main/proto/google/cloud/dialogflow/v2/version.proto",
-    "proto-google-cloud-dialogflow-v2/src/main/proto/google/cloud/dialogflow/v2/webhook.proto",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/Agent.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AgentAssistantFeedback.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AgentAssistantFeedbackOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AgentAssistantRecord.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AgentAssistantRecordOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AgentName.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AgentOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AgentProto.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AnalyzeContentRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AnalyzeContentRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AnalyzeContentResponse.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AnalyzeContentResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AnnotatedMessagePart.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AnnotatedMessagePartOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AnswerFeedback.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AnswerFeedbackOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AnswerRecord.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AnswerRecordName.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AnswerRecordOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AnswerRecordsProto.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ArticleAnswer.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ArticleAnswerOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AudioConfigProto.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AudioEncoding.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AutomatedAgentConfig.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AutomatedAgentConfigOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AutomatedAgentReply.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/AutomatedAgentReplyOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/BatchCreateEntitiesRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/BatchCreateEntitiesRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/BatchCreateMessagesRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/BatchCreateMessagesRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/BatchCreateMessagesResponse.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/BatchCreateMessagesResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/BatchDeleteEntitiesRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/BatchDeleteEntitiesRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/BatchDeleteEntityTypesRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/BatchDeleteEntityTypesRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/BatchDeleteIntentsRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/BatchDeleteIntentsRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/BatchUpdateEntitiesRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/BatchUpdateEntitiesRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/BatchUpdateEntityTypesRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/BatchUpdateEntityTypesRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/BatchUpdateEntityTypesResponse.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/BatchUpdateEntityTypesResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/BatchUpdateIntentsRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/BatchUpdateIntentsRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/BatchUpdateIntentsResponse.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/BatchUpdateIntentsResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CompileSuggestionRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CompileSuggestionRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CompileSuggestionResponse.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CompileSuggestionResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CompleteConversationRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CompleteConversationRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/Context.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ContextName.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ContextOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ContextProto.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/Conversation.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ConversationEvent.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ConversationEventOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ConversationEventProto.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ConversationName.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ConversationOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ConversationPhoneNumber.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ConversationPhoneNumberOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ConversationProfile.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ConversationProfileName.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ConversationProfileOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ConversationProfileProto.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ConversationProto.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateContextRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateContextRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateConversationProfileRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateConversationProfileRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateConversationRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateConversationRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateDocumentRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateDocumentRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateEntityTypeRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateEntityTypeRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateIntentRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateIntentRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateKnowledgeBaseRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateKnowledgeBaseRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateMessageRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateMessageRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateParticipantRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateParticipantRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateSessionEntityTypeRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/CreateSessionEntityTypeRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/DeleteAgentRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/DeleteAgentRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/DeleteAllContextsRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/DeleteAllContextsRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/DeleteContextRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/DeleteContextRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/DeleteConversationProfileRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/DeleteConversationProfileRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/DeleteDocumentRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/DeleteDocumentRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/DeleteEntityTypeRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/DeleteEntityTypeRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/DeleteIntentRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/DeleteIntentRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/DeleteKnowledgeBaseRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/DeleteKnowledgeBaseRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/DeleteSessionEntityTypeRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/DeleteSessionEntityTypeRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/DetectIntentRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/DetectIntentRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/DetectIntentResponse.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/DetectIntentResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/Document.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/DocumentName.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/DocumentOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/DocumentProto.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/DtmfParameters.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/DtmfParametersOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/EntityType.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/EntityTypeBatch.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/EntityTypeBatchOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/EntityTypeName.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/EntityTypeOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/EntityTypeProto.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/Environment.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/EnvironmentName.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/EnvironmentOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/EnvironmentProto.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/EventInput.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/EventInputOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ExportAgentRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ExportAgentRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ExportAgentResponse.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ExportAgentResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/FaqAnswer.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/FaqAnswerOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GcsProto.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GcsSource.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GcsSourceOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GcsSources.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GcsSourcesOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetAgentRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetAgentRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetAnswerRecordRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetAnswerRecordRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetContextRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetContextRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetConversationProfileRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetConversationProfileRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetConversationRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetConversationRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetDocumentRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetDocumentRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetEntityTypeRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetEntityTypeRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetIntentRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetIntentRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetKnowledgeBaseRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetKnowledgeBaseRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetParticipantRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetParticipantRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetSessionEntityTypeRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetSessionEntityTypeRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetValidationResultRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/GetValidationResultRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/HumanAgentAssistantConfig.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/HumanAgentAssistantConfigOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/HumanAgentAssistantEvent.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/HumanAgentAssistantEventOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/HumanAgentAssistantEventProto.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/HumanAgentHandoffConfig.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/HumanAgentHandoffConfigOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ImportAgentRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ImportAgentRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ImportDocumentTemplate.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ImportDocumentTemplateOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ImportDocumentsRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ImportDocumentsRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ImportDocumentsResponse.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ImportDocumentsResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/InputAudioConfig.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/InputAudioConfigOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/Intent.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/IntentBatch.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/IntentBatchOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/IntentName.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/IntentOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/IntentProto.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/IntentView.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/KnowledgeAnswers.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/KnowledgeAnswersOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/KnowledgeBase.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/KnowledgeBaseName.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/KnowledgeBaseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/KnowledgeBaseProto.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/KnowledgeOperationMetadata.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/KnowledgeOperationMetadataOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListAnswerRecordsRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListAnswerRecordsRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListAnswerRecordsResponse.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListAnswerRecordsResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListContextsRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListContextsRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListContextsResponse.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListContextsResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListConversationProfilesRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListConversationProfilesRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListConversationProfilesResponse.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListConversationProfilesResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListConversationsRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListConversationsRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListConversationsResponse.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListConversationsResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListDocumentsRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListDocumentsRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListDocumentsResponse.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListDocumentsResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListEntityTypesRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListEntityTypesRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListEntityTypesResponse.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListEntityTypesResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListEnvironmentsRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListEnvironmentsRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListEnvironmentsResponse.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListEnvironmentsResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListIntentsRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListIntentsRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListIntentsResponse.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListIntentsResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListKnowledgeBasesRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListKnowledgeBasesRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListKnowledgeBasesResponse.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListKnowledgeBasesResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListMessagesRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListMessagesRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListMessagesResponse.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListMessagesResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListParticipantsRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListParticipantsRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListParticipantsResponse.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListParticipantsResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListSessionEntityTypesRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListSessionEntityTypesRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListSessionEntityTypesResponse.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListSessionEntityTypesResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListSuggestionsRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListSuggestionsRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListSuggestionsResponse.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ListSuggestionsResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/LocationName.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/LoggingConfig.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/LoggingConfigOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/Message.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/MessageAnnotation.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/MessageAnnotationOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/MessageName.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/MessageOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/NotificationConfig.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/NotificationConfigOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/OriginalDetectIntentRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/OriginalDetectIntentRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/OutputAudio.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/OutputAudioConfig.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/OutputAudioConfigOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/OutputAudioEncoding.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/OutputAudioOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/Participant.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ParticipantName.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ParticipantOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ParticipantProto.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ProjectName.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/QueryInput.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/QueryInputOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/QueryParameters.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/QueryParametersOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/QueryResult.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/QueryResultOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ReloadDocumentRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ReloadDocumentRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ResponseMessage.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ResponseMessageOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/RestoreAgentRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/RestoreAgentRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SearchAgentsRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SearchAgentsRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SearchAgentsResponse.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SearchAgentsResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/Sentiment.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SentimentAnalysisRequestConfig.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SentimentAnalysisRequestConfigOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SentimentAnalysisResult.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SentimentAnalysisResultOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SentimentOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SessionEntityType.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SessionEntityTypeName.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SessionEntityTypeOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SessionEntityTypeProto.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SessionName.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SessionProto.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SetAgentRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SetAgentRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SmartReplyAnswer.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SmartReplyAnswerOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SpeechContext.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SpeechContextOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SpeechModelVariant.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SpeechToTextConfig.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SpeechToTextConfigOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SpeechWordInfo.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SpeechWordInfoOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SsmlVoiceGender.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/StreamingDetectIntentRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/StreamingDetectIntentRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/StreamingDetectIntentResponse.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/StreamingDetectIntentResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/StreamingRecognitionResult.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/StreamingRecognitionResultOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SubAgent.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SubAgentOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SuggestArticlesRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SuggestArticlesRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SuggestArticlesResponse.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SuggestArticlesResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SuggestFaqAnswersRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SuggestFaqAnswersRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SuggestFaqAnswersResponse.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SuggestFaqAnswersResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SuggestSmartRepliesRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SuggestSmartRepliesRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SuggestSmartRepliesResponse.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SuggestSmartRepliesResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/Suggestion.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SuggestionFeature.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SuggestionFeatureOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SuggestionOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SuggestionResult.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SuggestionResultOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SynthesizeSpeechConfig.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/SynthesizeSpeechConfigOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/TelephonyDtmf.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/TelephonyDtmfEvents.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/TelephonyDtmfEventsOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/TextInput.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/TextInputOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/TrainAgentRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/TrainAgentRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/UpdateAnswerRecordRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/UpdateAnswerRecordRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/UpdateContextRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/UpdateContextRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/UpdateConversationProfileRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/UpdateConversationProfileRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/UpdateDocumentRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/UpdateDocumentRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/UpdateEntityTypeRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/UpdateEntityTypeRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/UpdateIntentRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/UpdateIntentRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/UpdateKnowledgeBaseRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/UpdateKnowledgeBaseRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/UpdateParticipantRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/UpdateParticipantRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/UpdateSessionEntityTypeRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/UpdateSessionEntityTypeRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ValidationError.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ValidationErrorOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ValidationResult.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ValidationResultOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/ValidationResultProto.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/VoiceSelectionParams.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/VoiceSelectionParamsOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/WebhookProto.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/WebhookRequest.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/WebhookRequestOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/WebhookResponse.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/java/com/google/cloud/dialogflow/v2beta1/WebhookResponseOrBuilder.java",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/agent.proto",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/answer_record.proto",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/audio_config.proto",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/context.proto",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/conversation.proto",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/conversation_event.proto",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/conversation_profile.proto",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/document.proto",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/entity_type.proto",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/environment.proto",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/gcs.proto",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/human_agent_assistant_event.proto",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/intent.proto",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/knowledge_base.proto",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/participant.proto",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/session.proto",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/session_entity_type.proto",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/validation_result.proto",
-    "proto-google-cloud-dialogflow-v2beta1/src/main/proto/google/cloud/dialogflow/v2beta1/webhook.proto",
-    "renovate.json",
-    "samples/install-without-bom/pom.xml",
-    "samples/pom.xml",
-    "samples/snapshot/pom.xml",
-    "samples/snippets/pom.xml"
   ]
 }
\ No newline at end of file
diff --git a/synth.py b/synth.py
index d1cb0ed17..63e386219 100644
--- a/synth.py
+++ b/synth.py
@@ -64,6 +64,8 @@
     'google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/EnvironmentsClientTest.java',
     'google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/EntityTypesClientTest.java',
     'google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/IntentsClientTest.java',
+    'google-cloud-dialogflow/src/test/java/com/google/cloud/dialogflow/v2beta1/VersionsClientTest.java'
+
   ],
   'ofProjectName',
   'ofProjectAgentName'