Improve useDebounce callback type

docs/useDebounce.md

@@ -48,10 +48,10 @@ const Demo = () => {
 const [
     isReady: () => boolean | null,
     cancel: () => void,
-] = useDebounce(fn: Function, ms: number, deps: DependencyList = []);
+] = useDebounce<F extends () => unknown>(fn: F, ms: number, deps: DependencyList = []);
 ```
 
-- **`fn`**_`: Function`_ - function that will be called;
+- **`fn`**_`: F extends () => unknown`_ - function that will be called;
 - **`ms`**_`: number`_ - delay in milliseconds;
 - **`deps`**_`: DependencyList`_ - array of values that the debounce depends on, in the same manner as useEffect;
 - **`isReady`**_`: ()=>boolean|null`_ - function returning current debounce state:

src/useDebounce.ts

@@ -2,9 +2,10 @@ import { DependencyList, useEffect } from 'react';
 import useTimeoutFn from './useTimeoutFn';
 
 export type UseDebounceReturn = [() => boolean | null, () => void];
+export type UseDebounceFn = () => unknown;
 
-export default function useDebounce(
-  fn: Function,
+export default function useDebounce<F extends UseDebounceFn>(
+  fn: F,
   ms: number = 0,
   deps: DependencyList = []
 ): UseDebounceReturn {