fix: add clarity to param model_name (#888)

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Fixes #<issue_number_goes_here> 🦕

samples/model-builder/deploy_model_with_automatic_resources_sample.py

@@ -31,6 +31,11 @@ def deploy_model_with_automatic_resources_sample(
     metadata: Optional[Sequence[Tuple[str, str]]] = (),
     sync: bool = True,
 ):
+    """
+        model_name: A fully-qualified model resource name or model ID.
+              Example: "projects/123/locations/us-central1/models/456" or
+              "456" when project and location are initialized or passed.
+    """
 
     aiplatform.init(project=project, location=location)
 

samples/model-builder/deploy_model_with_dedicated_resources_sample.py

@@ -37,6 +37,11 @@ def deploy_model_with_dedicated_resources_sample(
     metadata: Optional[Sequence[Tuple[str, str]]] = (),
     sync: bool = True,
 ):
+    """
+        model_name: A fully-qualified model resource name or model ID.
+              Example: "projects/123/locations/us-central1/models/456" or
+              "456" when project and location are initialized or passed.
+    """
 
     aiplatform.init(project=project, location=location)