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

gcloud auth application-default login/google-cloud-sdk/lib/surface/dataplex/datascan/describe.yaml

@@ -0,0 +1,20 @@
+- release_tracks: [ALPHA]
+  help_text:
+    brief: |
+      Describe a Dataplex lake resource.
+    description: |
+      Displays all details of a Dataplex Datascan resource given a valid Datascan ID.
+    examples: |
+      To describe a Dataplex Datascan `test-datascan` in project `test-project` location `us-central1` , run:
+
+          $ {command} test-datascan --project=test-project --location=us-central1
+  request:
+    ALPHA:
+      api_version: v1
+    collection: dataplex.projects.locations.dataScans
+    method: get
+  arguments:
+    resource:
+      help_text: |
+        Arguments and flags that define the Dataplex Datascan you want to retrieve.
+      spec: !REF googlecloudsdk.command_lib.dataplex.resources:datascan