…ration (#1177)

* chore: Removed old admin_v2 GAPIC layer (#1111)

* feat!: Generated Selective GAPIC layer for Admin API (#1112)

* chore: Updated service YAML by making all methods in BigtableInstanceAdmin public (#1113)

* refactor: Refactored classic client to use new Admin API (#1114)

* refactor: Refactored classic client to use new Admin API

* added newline after gapic_version files

* fix: Made generate_consistency_token and check_consistency public (#1116)

methods

* feat: Consistency polling + restore table for sync client in admin (#1117)

* feat: Prototyped handwritten layer

* Added newlines

* linting

* Added docstrings for restore table and consistency token polling;
removed gc_rule

* docs: owlbot related changes (#1133)

* docs: owlbot related changes

* Addressed PR feedback + made changes to toc.yml for docs pipeline

* Fixed type hint

* linting + added validation for admin section

* linting + added noqas to owlbot lines

* tests: Tests for sync client + fixes + client library versioning (#1132)

* tests: Tests for sync client + fixes + client library versioning

* Removed raise exception

* linting + name changes in tests + added test for timeout

* linting

* Fixed tests on Python 3.7

* feat: Proto-plus modifications for enforcing strict oneofs (#1126)

* feat: Proto-plus modifications for enforcing strict oneofs

* Added template directory + changed unit tests to pytest

* Finished README

* linting

* Added source of truth comment

* feat: Reworked the wait_for_consistency call (#1144)

* feat: Reworked the wait_for_consistency call

* linting

* Update google/cloud/bigtable/admin_v2/overlay/services/bigtable_table_admin/client.py

Co-authored-by: Mattie Fu <mattiefu@google.com>

* Improved documentation

* linting again

* linting

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Co-authored-by: Mattie Fu <mattiefu@google.com>

* feat: Async consistency polling harness (#1142)

* feat: Async consistency polling harness

* Fixed AsyncMock issue in Python 3.7

* Reworked async_consistency and added async client to __init__.py

* linting

* addressed review feedback

* linting

* feat: Restore Table LRO rework + async restore table (#1148)

* chore(tests): system tests for autogen API (#1151)

* tests: system tests for autogen API

* Fixed async system tests

* addressed review feedback

* Fixed system test failure at the end of a test run

* Linting

* more linting

* chore: Moved Admin API from google.cloud.bigtable.admin_v2 back to google.cloud.bigtable_admin_v2 (#1153)

* chore: Removed autogenerated files from the feature branch (#1170)

* chore: Merged selective GAPIC autogenerated changes into feature branch (#1175)

* chore: Merged selective GAPIC owlbot changes into feature branch

* linting

* changed comment text

* Removed redundant items

* Fixed owlbot infinitely appending text

* Added comments + fixed indentation in Owlbot

* Added anonymous credentials to client tests

* Fixed project ID issue in system tests

* Fixed docstrings and skipped system tests on emulator.

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Co-authored-by: Mattie Fu <mattiefu@google.com>