code: def _export_tags(meta_graph, tags):
      """Exports tags into a MetaGraphDef."""
      if tags is not None:
          meta_graph.meta_info_def.tags.extend(tags)
  
imports: import collections
  import os
  import re
  from absl import logging
  import tensorflow
  from tensorflow_hub import module_attachment_pb2
  from tensorflow_hub import tf_utils
  from google.protobuf import message
  from tensorflow.core.protobuf import meta_graph_pb2
  from tensorflow.core.protobuf import saved_model_pb2
label_desc: Use image node_id 12 for calling a global function with example usage: _export_tags(meta_graph, tags) without return types