feat: make return_partial_success and unreachable fields public for list Bucket (#1601)

* feat: make return_partial_success and unreachable fields public for list Bucket
docs: updates to docs and docs formatting

PiperOrigin-RevId: 828488192

Source-Link: googleapis/googleapis@3a77bd6

Source-Link: googleapis/googleapis-gen@c74fa7e
Copy-Tag: eyJwIjoiLmdpdGh1Yi8uT3dsQm90LnlhbWwiLCJoIjoiYzc0ZmE3ZWU3MDdjNDIwNjRhOTk0MzU5MTRkYjBhYzEwYmE1ZjU0NSJ9

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

---------

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

Author: gcf-owl-bot[bot]

.flake8

@@ -1,28 +1,29 @@
 # -*- coding: utf-8 -*-
-#
-# Copyright 2024 Google LLC
+# Copyright 2025 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
+#     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.
-
-# Generated by synthtool. DO NOT EDIT!
+#
 [flake8]
+# TODO(https://github.com/googleapis/gapic-generator-python/issues/2333):
+# Resolve flake8 lint issues
 ignore = E203, E231, E266, E501, W503
 exclude =
-  # Exclude generated code.
-  **/proto/**
+  # TODO(https://github.com/googleapis/gapic-generator-python/issues/2333):
+  # Ensure that generated code passes flake8 lint
   **/gapic/**
   **/services/**
   **/types/**
+  # Exclude Protobuf gencode
   *_pb2.py
 
   # Standard linting exemptions.

MANIFEST.in

@@ -1,25 +1,20 @@
 # -*- coding: utf-8 -*-
-#
-# Copyright 2024 Google LLC
+# Copyright 2025 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
+#     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.
-
-# Generated by synthtool. DO NOT EDIT!
+#
 include README.rst LICENSE
-recursive-include google *.json *.proto py.typed
+recursive-include google *.py *.pyi *.json *.proto py.typed
 recursive-include tests *
 global-exclude *.py[co]
 global-exclude __pycache__
-
-# Exclude scripts for samples readmegen
-prune scripts/readme-gen