InvalidArgument("Attribute '", attr_name, "' is not a string");
    return;
  }
  if (max_length <= 0) {
    return;
  }
  const auto& s = attr->s();
  std::memcpy(value, s.data(), std::min<size_t>(s.length(), max_length));
}

void TF_OperationGetAttrStringList(TF_Operation* oper, const char* attr_name,
                                   void** values, size_t* lengths,