output.SetSerializationDeterministic(true);
    saved_model.SerializeToCodedStream(&output);
  }
  return tensorflow::Fingerprint64(saved_model_serialized);
}

uint64_t RegularizeAndHashSignatureDefs(
    const Map<std::string, SignatureDef>& signature_def_map) {
  // Sort `signature_def_map`, which is an unordered map from string keys to
  // SignatureDefs.