message: removed unnecessary bracket
diff: @@ -180,7 +180,7 @@ def _show_defined_functions(saved_model_dir):
  print(' Function Name: \'%s\'' % name)
  for index, concrete_functions in enumerate(
  function._list_all_concrete_functions_for_serialization(), 1):
  - args, kwargs = (concrete_functions.structured_input_signature)
  + args, kwargs = concrete_functions.structured_input_signature
  print(' Option #%d' % index)
  print(' Callable with:')
  _print_args(args, indent=3)
  