code: func New(store *store.MemoryStore) *TaskReaper {
  	return &TaskReaper{
  		store:    store,
  		dirty:    make(map[orchestrator.SlotTuple]struct{}),
  		stopChan: make(chan struct{}),
  		doneChan: make(chan struct{}),
  	}
  }
docs: // New creates a new TaskReaper.