// checksum may still change since the saved_model proto may be different.
    StringOutputStream stream(&saved_model_serialized);
    CodedOutputStream output(&stream);
    output.SetSerializationDeterministic(true);
    saved_model.SerializeToCodedStream(&output);
  }
  return tensorflow::Fingerprint64(saved_model_serialized);
}

uint64_t RegularizeAndHashSignatureDefs(

  {
    // local scope guarantees coded stream will be trimmed (ensures determinism)
    StringOutputStream stream(&serialized_message);
    CodedOutputStream output(&stream);
    output.SetSerializationDeterministic(true);
    message.SerializeToCodedStream(&output);
  }
  return serialized_message;
}

absl::StatusOr<uint64_t> HashFields(
    const ChunkedMessage& chunked_message,