chore: update release level to stable (#12806)

Fixes b/347745571 🦕

Also see related issue to improve the process of promoting clients to
stable: #10876

packages/google-cloud-storage-control/.repo-metadata.json

@@ -5,7 +5,7 @@
     "product_documentation": "https://cloud.google.com/storage/docs/reference/rpc/google.storage.control.v2",
     "client_documentation": "https://cloud.google.com/python/docs/reference/google-cloud-storage-control/latest",
     "issue_tracker": "https://issuetracker.google.com/issues/new?component=187243&template=1162869",
-    "release_level": "preview",
+    "release_level": "stable",
     "language": "python",
     "library_type": "GAPIC_AUTO",
     "repo": "googleapis/google-cloud-python",

packages/google-cloud-storage-control/README.rst

@@ -1,21 +1,21 @@
 Python Client for Storage Control API
 =====================================
 
-|preview| |pypi| |versions|
+|stable| |pypi| |versions|
 
 `Storage Control API`_: Lets you perform metadata-specific, control plane, and long-running operations apart from the Storage API. Separating these operations from the Storage API improves API standardization and lets you run faster releases.
 
 - `Client Library Documentation`_
 - `Product Documentation`_
 
-.. |preview| image:: https://img.shields.io/badge/support-preview-orange.svg
+.. |stable| image:: https://img.shields.io/badge/support-stable-gold.svg
    :target: https://github.com/googleapis/google-cloud-python/blob/main/README.rst#stability-levels
 .. |pypi| image:: https://img.shields.io/pypi/v/google-cloud-storage-control.svg
    :target: https://pypi.org/project/google-cloud-storage-control/
 .. |versions| image:: https://img.shields.io/pypi/pyversions/google-cloud-storage-control.svg
    :target: https://pypi.org/project/google-cloud-storage-control/
 .. _Storage Control API: https://cloud.google.com/storage/docs/reference/rpc/google.storage.control.v2
-.. _Client Library Documentation: https://cloud.google.com/python/docs/reference/google-cloud-storage-control/latest
+.. _Client Library Documentation: https://cloud.google.com/python/docs/reference/google-cloud-storage-control/latest/summary_overview
 .. _Product Documentation:  https://cloud.google.com/storage/docs/reference/rpc/google.storage.control.v2
 
 Quick Start

packages/google-cloud-storage-control/docs/index.rst

@@ -21,3 +21,8 @@ For a list of all ``google-cloud-storage-control`` releases:
     :maxdepth: 2
 
     CHANGELOG
+
+.. toctree::
+  :hidden:
+
+  summary_overview.md

packages/google-cloud-storage-control/docs/summary_overview.md

@@ -0,0 +1,22 @@
+[
+This is a templated file. Adding content to this file may result in it being
+reverted. Instead, if you want to place additional content, create an
+"overview_content.md" file in `docs/` directory. The Sphinx tool will
+pick up on the content and merge the content.
+]: #
+
+# Storage Control API API
+
+Overview of the APIs available for Storage Control API API.
+
+## All entries
+
+Classes, methods and properties & attributes for
+Storage Control API API.
+
+[classes](https://cloud.google.com/python/docs/reference/google-cloud-storage-control/latest/summary_class.html)
+
+[methods](https://cloud.google.com/python/docs/reference/google-cloud-storage-control/latest/summary_method.html)
+
+[properties and
+attributes](https://cloud.google.com/python/docs/reference/google-cloud-storage-control/latest/summary_property.html)