[Patch] Return import for the unclip pipeline loader

Author: anton-l

src/diffusers/pipelines/unclip/__init__.py

@@ -13,3 +13,4 @@
     from ...utils.dummy_torch_and_transformers_objects import UnCLIPPipeline
 else:
     from .pipeline_unclip import UnCLIPPipeline
+    from .text_proj import UnCLIPTextProjModel