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

gcloud auth application-default login/google-cloud-sdk/lib/surface/memcache/instances/delete.yaml

@@ -0,0 +1,38 @@
+- release_tracks: [ALPHA, BETA, GA]
+  help_text:
+    brief: |
+      Delete a Memorystore Memcached instance.
+    description: |
+      Delete a Memorystore Memcached instance.
+
+      This command can fail for the following reasons:
+        * The instance specified does not exist.
+        * The active account does not have permission to access the given
+          instance.
+    examples: |
+      To delete an instance named `my-memcache-instance` in region `us-central1`, run:
+
+        $ {command} my-memcache-instance --region=us-central1
+
+  arguments:
+    resource:
+      spec: !REF googlecloudsdk.command_lib.memcache.resources:instance
+      help_text: |
+        Arguments and flags that specify the Memcached instance to delete.
+
+  async:
+    collection: memcache.projects.locations.operations
+
+  input:
+    confirmation_prompt: |
+      You are about to delete instance [{__name__}] in [{locationsId}].
+      Any associated data will be lost.
+
+  request:
+    ALPHA:
+      api_version: v1beta2
+    BETA:
+      api_version: v1beta2
+    GA:
+      api_version: v1
+    collection: memcache.projects.locations.instances