TF_Status* status) {
  std::vector<Tensor> ts;
  status->status = tensorflow::GetNodeAttr(oper->node.attrs(), attr_name, &ts);
  if (!status->status.ok()) return;
  const auto len = std::min(max_values, static_cast<int>(ts.size()));
  for (int i = 0; i < len; ++i) {
    values[i] = TF_TensorFromTensor(ts[i], &status->status);
  }
}