const auto* attr = GetAttrValue(oper, attr_name, status);
  if (!status->status.ok()) return;
  status->status = MessageToBuffer(*attr, output_attr_value);
}

int TF_OperationGetNumAttrs(TF_Operation* oper) {
  return oper->node.attrs().size();
}

int TF_OperationGetAttrNameLength(TF_Operation* oper, int i) {
  auto attrs = oper->node.attrs();
  int count = 0;

  auto oper = TF_FinishOperation(desc, s_);
  ASSERT_EQ(TF_OK, TF_GetCode(s_)) << TF_Message(s_);
  EXPECT_TF_META("v", -1, TF_ATTR_STRING, 5);

  ASSERT_EQ(1, TF_OperationGetNumAttrs(oper));
  ASSERT_EQ(1, TF_OperationGetAttrNameLength(oper, 0));

  std::unique_ptr<char[]> value(new char[1]);

  TF_OperationGetAttrName(oper, 0, value.get(), s_);