method_name='some_function')
  signature_def2 = tf.saved_model.signature_def_utils.build_signature_def(
      inputs={'x': tensor_info_x},
      outputs={'r': tensor_info_r},
      method_name='some_other_function')

  # Create two signatures that share the same variable.
  return {'key': signature_def, 'key2': signature_def2}, None, None


if __name__ == '__main__':
  common_v1.set_tf_options()