const std::string& close_op, const std::string& cancel_op,
    const std::vector<Code>& queue_closed_error_codes) {
  QueueRunnerDef queue_runner_def;
  *queue_runner_def.mutable_queue_name() = queue_name;
  for (const std::string& enqueue_op : enqueue_ops) {
    *queue_runner_def.mutable_enqueue_op_name()->Add() = enqueue_op;
  }
  *queue_runner_def.mutable_close_op_name() = close_op;