message: Upgrade tf_logging.warn to tf_logging.warning.
diff: @@ -1219,7 +1219,7 @@ def _build_meta_graph_impl(obj,
  meta_graph_def.object_graph_def.CopyFrom(object_graph_proto)
  if saved_object_metadata and raise_metadata_warning:
  - tf_logging.warn(
  + tf_logging.warning(
  'FOR KERAS USERS: The object that you are saving contains one or more '
  'Keras models or layers. If you are loading the SavedModel with '
  '`tf.keras.models.load_model`, continue reading (otherwise, you may '
  