TypedThriftMessage<cpp2::McTouchRequest> convertToTyped(
    const McRequest& req, McOperation<mc_op_touch>) {
  TypedThriftMessage<cpp2::McTouchRequest> treq;
  treq->key = req.key().clone();
  if (req.exptime() != 0) {
    treq->__isset.exptime = true;
    treq->exptime = req.exptime();
  }
  return treq;
}