docs(samples): adding code sample for vector search create streaming …

…index

PiperOrigin-RevId: 667564368

samples/model-builder/vector_search/vector_search_create_index_sample.py

@@ -48,3 +48,36 @@ def vector_search_create_index(
 
 
 #  [END aiplatform_sdk_vector_search_create_index_sample]
+
+
+#  [START aiplatform_sdk_vector_search_create_streaming_index_sample]
+def vector_search_create_streaming_index(
+    project: str, location: str, display_name: str, gcs_uri: Optional[str] = None
+) -> None:
+    """Create a vector search index.
+
+    Args:
+        project (str): Required. Project ID
+        location (str): Required. The region name
+        display_name (str): Required. The index display name
+        gcs_uri (str): Optional. The Google Cloud Storage uri for index content
+    """
+    # Initialize the Vertex AI client
+    aiplatform.init(project=project, location=location, staging_bucket=gcs_uri)
+
+    # Create Index
+    index = aiplatform.MatchingEngineIndex.create_tree_ah_index(
+        display_name=display_name,
+        description="Matching Engine Index",
+        dimensions=100,
+        approximate_neighbors_count=150,
+        leaf_node_embedding_count=500,
+        leaf_nodes_to_search_percent=7,
+        index_update_method="stream_update",  # Options: stream_update, batch_update
+        distance_measure_type=aiplatform.matching_engine.matching_engine_index_config.DistanceMeasureType.DOT_PRODUCT_DISTANCE,
+    )
+
+    print(index.name)
+
+
+#  [END aiplatform_sdk_vector_search_create_streaming_index_sample]

samples/model-builder/vector_search/vector_search_create_index_sample_test.py

@@ -44,6 +44,37 @@ def test_vector_search_create_index_sample(
         approximate_neighbors_count=ANY,
         leaf_node_embedding_count=ANY,
         leaf_nodes_to_search_percent=ANY,
-        index_update_method=ANY,
+        index_update_method="batch_update",
+        distance_measure_type=ANY,
+    )
+
+
+def test_vector_search_create_streaming_index_sample(
+    mock_sdk_init,
+    mock_index_create_tree_ah_index,
+):
+    vector_search_create_index_sample.vector_search_create_streaming_index(
+        project=constants.PROJECT,
+        location=constants.LOCATION,
+        display_name=constants.VECTOR_SEARCH_INDEX_DISPLAY_NAME,
+        gcs_uri=constants.VECTOR_SEARCH_GCS_URI,
+    )
+
+    # Check client initialization
+    mock_sdk_init.assert_called_with(
+        project=constants.PROJECT,
+        location=constants.LOCATION,
+        staging_bucket=constants.VECTOR_SEARCH_GCS_URI,
+    )
+
+    # Check index creation
+    mock_index_create_tree_ah_index.assert_called_with(
+        display_name=constants.VECTOR_SEARCH_INDEX_DISPLAY_NAME,
+        description=ANY,
+        dimensions=ANY,
+        approximate_neighbors_count=ANY,
+        leaf_node_embedding_count=ANY,
+        leaf_nodes_to_search_percent=ANY,
+        index_update_method="stream_update",
         distance_measure_type=ANY,
     )