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/**
* Store the last of some value. Tracked via a `Ref` only updating it
* after the component renders.
*
* Helpful if you need to compare a prop value to it's previous value during render.
*
* ```ts
* function Component(props) {
* const lastProps = usePrevious(props)
*
* if (lastProps.foo !== props.foo)
* resetValueFromProps(props.foo)
* }
* ```
*
* @param value the value to track
*/
export default function usePrevious<T>(value: T): T | null;