/***
 * A custom hook that retrieves the previous value of the given input value.
 *
 * Upon initialization, the previous value returned is the same as the value
 * passed to the hook at the time of initialization.
 *
 * @param value The current value of type T.
 * @param compareFn An optional comparison function that determines if the
 * previous value is the same as the current value. By default, a reference
 * equality check is applied.
 * @returns The previous value of type T.
 */
export default function usePrevious<T>(value: T, compareFn?: (a: T, b: T) => boolean): T;