能不能把useTimeout升级一下？ about hooks HOT 9 OPEN

import React, { useState } from 'react';
import { useInterval } from 'ahooks';

export default () => {
  const [count, setCount] = useState(0);
  const [delay, setDelay] = useState<number | undefined>(1000);

  const isActive = delay !== undefined;
  const start = () => setDelay(1000);
  const pause = () => setDelay(undefined);
  const clear = useInterval(() => {
    setCount(count + 1);
  }, delay);

  return (
    <div>
      <button onClick={start}>start</button>
      <button onClick={pause}>pause</button>
      <button onClick={clear}>clear</button>
      <div>isActive: {`${isActive}`}</div>
      <div>count: {count}</div>
    </div>
  );
};

const clear = useTimeout(fn, delay);

const {
  start,
  pause,
  clear,
  isActive,
} = useTimeout(fn, delay, {
  defaultActive: false
})