code: def _format_data_type(data_type):
      if data_type in type_to_string_map:
          return type_to_string_map[data_type]
      raise KeyError()
  
imports: import json
  import logging
  import os
  import google.protobuf
  from tensorflow.core.framework import api_def_pb2
  from tensorflow.core.framework import op_def_pb2
  from tensorflow.core.framework import types_pb2
label_desc: Use image node_id 15 for calling a global function with example usage: _format_data_type(data_type) and returns: type_to_string_map