code: def main():  # pylint: disable=missing-function-docstring
      _metadata()
  
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 21 for calling a global function with example usage: main() without return types