chore: release 1.12.1 (googleapis#1031)

chore: release 1.12.0 (googleapis#1025)

chore: release 1.11.0 (googleapis#1009)

* chore: updated CHANGELOG.md [ci skip]

* chore: updated setup.cfg [ci skip]

* chore: updated setup.py

Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>

chore: release 1.10.1 (googleapis#997)

* chore: updated CHANGELOG.md [ci skip]

* chore: updated setup.cfg [ci skip]

* chore: updated setup.py

Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>

chore: release 1.10.0 (googleapis#944)

🤖 I have created a release \*beep\* \*boop\* 
---
## [1.10.0](https://www.github.com/googleapis/google-api-python-client/compare/v1.9.3...v1.10.0) (2020-07-15)


### Features

* allow to use 'six.moves.collections_abc.Mapping' in 'client_options.from_dict()' ([googleapis#943](https://www.github.com/googleapis/google-api-python-client/issues/943)) ([21af37b](https://www.github.com/googleapis/google-api-python-client/commit/21af37b11ea2d6a89b3df484e1b2fa1d12849510))
* Build universal wheels ([googleapis#948](https://www.github.com/googleapis/google-api-python-client/issues/948)) ([3e28a1e](https://www.github.com/googleapis/google-api-python-client/commit/3e28a1e0d47f829182cd92f37475ab91fa5e4afc))
* discovery supports retries ([googleapis#967](https://www.github.com/googleapis/google-api-python-client/issues/967)) ([f3348f9](https://www.github.com/googleapis/google-api-python-client/commit/f3348f98bf91a88a28bf61b12b95e391cc3be1ff)), closes [googleapis#848](https://www.github.com/googleapis/google-api-python-client/issues/848)


### Documentation

* consolidating and updating the Contribution Guide ([googleapis#964](https://www.github.com/googleapis/google-api-python-client/issues/964)) ([63f97f3](https://www.github.com/googleapis/google-api-python-client/commit/63f97f37daee37a725eb05df3097b20d5d4eaaf0)), closes [googleapis#963](https://www.github.com/googleapis/google-api-python-client/issues/963)
---


This PR was generated with [Release Please](https://github.com/googleapis/release-please).

chore: release 1.9.3 (googleapis#941)

* updated CHANGELOG.md [ci skip]

* updated setup.py

Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>

chore: release 1.9.2 (googleapis#937)

* updated CHANGELOG.md [ci skip]

* updated setup.py

Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>

chore: release 1.9.1 (googleapis#932)

🤖 I have created a release \*beep\* \*boop\* 
---
### [1.9.1](https://www.github.com/googleapis/google-api-python-client/compare/v1.9.0...v1.9.1) (2020-06-02)


### Bug Fixes

* fix python-api-core dependency issue ([googleapis#931](https://www.github.com/googleapis/google-api-python-client/issues/931)) ([42028ed](https://www.github.com/googleapis/google-api-python-client/commit/42028ed2b2be47f85b70eb813185264f1f573d01))
---


This PR was generated with [Release Please](https://github.com/googleapis/release-please).

chore: release 1.9.0 (googleapis#925)

🤖 I have created a release \*beep\* \*boop\* 
---
## [1.9.0](https://www.github.com/googleapis/google-api-python-client/compare/v1.8.4...v1.9.0) (2020-06-02)


### Features

* add mtls feature ([googleapis#917](https://www.github.com/googleapis/google-api-python-client/issues/917)) ([981eadf](https://www.github.com/googleapis/google-api-python-client/commit/981eadf7cfdb576981d92fcda498c76422821426))
* add templates for python samples projects ([googleapis#506](https://www.github.com/googleapis/google-api-python-client/issues/506)) ([googleapis#924](https://www.github.com/googleapis/google-api-python-client/issues/924)) ([c482712](https://www.github.com/googleapis/google-api-python-client/commit/c482712935d1c1331e33bd7f9968bd3b2be223bb))
---


This PR was generated with [Release Please](https://github.com/googleapis/release-please).

chore: release 1.8.4 (googleapis#904)

* updated CHANGELOG.md [ci skip]

* updated setup.py [ci skip]

Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>