code: func (q *TimedWorkerQueue) GetWorkerUnsafe(key string) *TimedWorker {
  	q.Lock()
  	defer q.Unlock()
  	return q.workers[key]
  }
docs: // GetWorkerUnsafe returns a TimedWorker corresponding to the given key.
  // Unsafe method - workers have attached goroutines which can fire afater this function is called.