每当我需要空作家时，避免调用“点”

Question

type EventWriter[A] = Writer[List[Event], A]
type EitherWriter[A] = EitherT[EventWriter, String, A]

def applyChange(event: Event): EitherWriter[Aggregate] =
  EitherT.right[EventWriter, String, Aggregate](handleEvent(event).set(event :: Nil))

，用作：

def close = {
  if (!closed) {
    applyChange(Closed(id))
  } else {
    this.point[EitherWriter]
  }
}

每次我想要使用空列表返回this.point[EitherWriter]时，是否可以避免显式返回this？