chore(master): release 0.40.0

[release-please]

🤖 I have created a release beep boop

0.40.0 (2022-01-19)

Features

• Add x-goog-api-client header to rest clients (#888) (2d1d3ae)
• add async samples (#861) (e385ffd)
• add autogenerated snippets (#845) (abdf5ec)
• add bazel support for gapic metadata (#811) (7ced24a)
• add flag for gapic metadata (#795) (9cd7664)
• add fragment tests (#1056) (9d9b33d)
• add gapic metadata file (#781) (5dd8fcc)
• add mtls feature to rest transport (#731) (524dbab)
• add snippet index (#1121) (55d2bc6)
• add support for context manager in client (#987) (4edabcf)
• add support for long-running operations with rest transport. (#1094) (e89fd23)
• dev: Add Git pre-commit hooks [gapic-generator-python] (#908) (298db39)
• enable self signed jwt for grpc (#920) (da119c7)
• enable self signed jwt for http (#1000) (5f87973)
• forward compatible diregapic LRO support (#1085) (aa7f4d5)
• generate code snippets by default (#1044) (e46f443)
• generate snippet metadata (#1129) (9e46031)
• implement grpc transcode for rest transport and complete generated tests (#999) (ccdd17d)
• implement grpc transcode for rest transport and complete generated tests. (ccdd17d)
• port REST transport to Ads templates (#1003) (d2ab9da)
• Raise GoogleAPICallError on REST response errors (#891) (edb8c63)
• snippetgen: generate mock input for required fields (#941) (b2149da)
• snippetgen: turn resource path strings into f-strings (#1012) (a110e1d)
• Support alternative http bindings in the gapic schema. (#993) (041a726)
• Support field presence for query parameters in REST clients (#866) (5339db1)
• support protobuf method deprecation option [gapic-generator-python] (#875) (5a5a839)
• support self-signed JWT flow for service accounts (#774) (89d6f35)
• tests: Add integration test framework, goldens for 4 APIs [gapic-generator-python] (#905) (48db1e6)
• update templates to permit enum aliases (#809) (2e7ea11)

Bug Fixes

• add 'dict' type annotation to 'request' (#966) (49205d9)
• add 'dict' type annotation to 'request' for async_client (#1051) (08cc2c4)
• add a separate DEFAULT_CLIENT_INFO for rest clients (#988) (22ac400)
• add additional reserved names for disambiguation (#1114) (1cffd8d)
• add async client to %name_%version/init.py (#859) (391fdb8)
• add certain raw imports to RESERVED_NAMES (#824) (04bd8aa)
• Adjust Field Names in URI Templates (#1041) (06cd7b6)
• also add the async client to all (#869) (09c90fa)
• bazel: Re-enable Python µgen integration tests post monolith rule removal (#926) (13a6b3a)
• bazel: Remove monolith imports from Python µgen Bazel rules (#923) (4a2afa7)
• body encoding for rest transport (#768) (cc55a18)
• Check for default value presence for non-optional fields in REST (#868) (5748001)
• consistently use _pb2 identifier (#883) (d789c84)
• corner case fix for empty request generated test (#801) (039dc71)
• disable always_use_jwt_access (#939) (1302352)
• don't enable snippetgen by default (#1078) (8bdb709)
• don't use integer for enums in json encoding (#761) (6d37a73)
• enable GAPIC metadata generation (#843) (697816c)
• enable self signed jwt for grpc (#958) (af02a9c)
• ensure rest unit tests have complete coverage (#1098) (0705d9c)
• exclude 'input' from reserved names list (#788) (da2ff71)
• fix case for expected field names in required fields test. (#1107) (6a593f9)
• fix datetime comparison unit tests (#898) (81932a2)
• fix docstring for first attribute of protos (#1004) (383f655)
• fix incorrectly referenced exceptions, add missing port to tests (#873) (40078c4), closes #872
• fix missing http schema (http/https) for REST clients (#1063) (e3aa7a0)
• Fix namespace packages conflict issue (#757) (8035662)
• fix resource path args for paths with =** (#1089) (309cc66)
• Fix rest transport logic (#1039) (50d61af)
• fix rest transport tests (#772) (ce110a3)
• fix rest transport unit test and required query prams handling (#951) (b793017)
• fix rest transport unit test template (#741) (54b9806)
• fix rest unit test (#1074) (3b2918e)
• fix syntax errors and failing unit tests (#849) (9046261), closes #848
• fix syntax for Deprecationwarning (#942) (82dbddb)
• fix tests generation logic (#1049) (8f213ad)
• fix wrong scopes for self signed jwt (#935) (e033acd)
• handle message bodies (#1117) (36e3236)
• handle required fields properly in query_params (#1068) (0e379ca)
• ignore unknown fields returned from server for REST (#777) (a70b078)
• import warnings when needed (#930) (d4270ae)
• improper types in pagers generation (#970) (bba3eea)
• leave a newline between field description and oneof line (#1071) (4d0e365)
• list oneofs in docstring (#1030) (a0e25c8)
• Make gapic-generator-python compatible with protobuf 3.14.0 (packaged as native namespace package) (#753) (45212af)
• methods returning Operation w/o operation_info are now allowed. (#1047) (6b640af)
• more fixes for rest transport (#1042) (13d5f77)
• mypy 0.800 update errors (#754) (608275a)
• non-string required fields provide correct values (#1108) (bc5f729)
• only set unset fields if they are query params (#1130) (9ad98ca)
• raise for rest transport http error (#738) (7d24f3d)
• refactor mtls logic to standalone method (#1123) (d528223)
• remove auth, policy, and options from the reserved names list (#851) (d3f31a0)
• remove duplicate assignment of certain flattened, repeated fields (#760) (cdbc221)
• remove duplicate field entries (#786) (9f4dfa4)
• remove extra space before_pb_options (#863) (f0532e7)
• remove support for google-api-core<1.26.0 (#893) (ce558ac)
• s/grpcAsync/grpc-async for gapic metadata (#803) (96f7864)
• samplegen always produces sample dicts with "response" (#914) (0b168f2)
• snippetgen: don't create duplicate requests for required oneofs (#1088) (5531795)
• snippetgen: fix client streaming samples (#1061) (64b9ad6)
• snippetgen: use f-strings in print statements (#975) (122e85c)
• sort subpackages in %namespace/%name/init.py (#836) (90cf882)
• stabilize order of query_params (#742) (2835ddb)
• suppress type error for fallback def of OptionalRetry (#1065) (e47faa6)
• syntax fix and test for multiple required fields (#1105) (4e5fe2d)
• syntax fix for required_fields struct in rest transport (#1103) (3d7128c)
• temporarily disable code coverage in showcase_unit tests (#925) (0dfac03)
• timeouts are handled by rest clients, retries silently ignored (#976) (a62463c)
• unignore 'google.api_core' imports (#1066) (13f764c)
• Update module alias to resolve naming conflict (#820) (f5e9f36), closes #819
• update paging implementation to handle unconventional pagination (#750) (eaac3e6)
• use (new) typing for 'gapic_v1.method.DEFAULT' (#1032) (d85dfad)
• use correct retry deadline in publisher methods (#814) (92a2cfc)
• use correct typing for retries / operations_client (#1026) (acb3ea8)

Performance Improvements

• reduce unnecessary copies, optimize Address comparison (#855) (e843540)

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