feat: Add new gcloud commands, API clients, and third-party libraries across various services.

gcloud auth application-default login/google-cloud-sdk/lib/surface/filestore/backups/describe.yaml

@@ -0,0 +1,41 @@
+- release_tracks: [GA, BETA, ALPHA]
+  help_text:
+    brief: |
+      Describe a Filestore backup.
+    description: |
+      Displays all data associated with a Filestore backup given a valid backup name.
+
+      This command can fail for the following reasons:
+        * The backup specified does not exist.
+        * The active account does not have permission to access the given
+          backup.
+    examples: |
+      To display all data associated with a backup of the name 'my-backup' in the
+      region us-central1:
+
+        $ {command} my-backup --region=us-central1
+
+  arguments:
+    params:
+    - arg_name: backup
+      required: true
+      is_positional: true
+      help_text: |
+        Arguments and flags that specify the Filestore backup you want to
+        create.
+    - arg_name: region
+      required: true
+      help_text: |
+        Region (e.g. us-central1) for the backup.
+
+  request:
+    ALPHA:
+      api_version: v1p1alpha1
+    BETA:
+      api_version: v1beta1
+    GA:
+      api_version: v1
+    collection: file.projects.locations.backups
+    disable_resource_check: true
+    modify_request_hooks:
+    - googlecloudsdk.command_lib.filestore.backups.util:FormatBackupAccessRequest