}
    }
  };

  // Change its op name if it is a legacy call.
  try_use_original_func_name(node_def.mutable_op());

  // Change any function attributes in the attrs.
  for (auto& iter : attrs) {
    auto& attr = iter.second;
    if (attr.has_func()) {
      try_use_original_func_name(attr.mutable_func()->mutable_name());
    } else if (attr.has_list()) {

      }
    }
  };

  // Change its op name if it is a legacy call.
  try_use_original_func_name(node_def.mutable_op());

  // Change any function attributes in the attrs.
  for (auto& iter : attrs) {
    auto& attr = iter.second;
    if (attr.has_func()) {
      try_use_original_func_name(attr.mutable_func()->mutable_name());
    } else if (attr.has_list()) {