/**
* A convenience hook around `useState` designed to be paired with
* the component [callback ref](https://reactjs.org/docs/refs-and-the-dom.html#callback-refs) api.
* Callback refs are useful over `useRef()` when you need to respond to the ref being set
* instead of lazily accessing it in an effect.
*
* ```ts
* const [element, attachRef] = useCallbackRef<HTMLDivElement>()
*
* useEffect(() => {
* if (!element) return
*
* const calendar = new FullCalendar.Calendar(element)
*
* return () => {
* calendar.destroy()
* }
* }, [element])
*
* return <div ref={attachRef} />
* ```
*
* @category refs
*/
export default function useCallbackRef<TValue = unknown>(): [
TValue | null,
(ref: TValue | null) => void
];