}
  };

  bool error;
  std::string model_flags_proto_txt =
      ConvertArg(model_flags_proto_txt_raw, &error);
  if (error) {
    PyErr_SetString(PyExc_ValueError, "Model flags are invalid.");
    return nullptr;
  }
  std::string toco_flags_proto_txt =
      ConvertArg(toco_flags_proto_txt_raw, &error);
  if (error) {
    PyErr_SetString(PyExc_ValueError, "Toco flags are invalid.");