// ...
export default (containerSize) => {
  // ...
  useEffect(() => {
    const onKeyDown = ({ which }) => act(ACTION.KEY_DOWN, which)
    const onKeyUp = ({ which }) => act(ACTION.KEY_UP, which)
    const tick = () => act(ACTION.TICK)

    const timerId = setInterval(tick, UPDATE_EVERY)
    const unregisterKeydown = registerListener('keydown', onKeyDown)
    const unregisterKeyup = registerListener('keyup', onKeyUp)
    return () => {
      clearInterval(timerId)
      unregisterKeydown()
      unregisterKeyup()
    }
  }, [])
  // ...
}