import * as React from 'react';
export declare type Ref<T> = React.RefCallback<T> | React.MutableRefObject<T> | null;
declare type Refs<T> = (Ref<T | null> | null | undefined)[];
export declare function combineRefs<T>(...refs: Refs<T>): (element: T) => void;
export declare function useCombineRefObjects<T>(...refs: Refs<T>): React.RefObject<T>;
declare function useCombinedRefs<T>(...refs: Refs<T>): React.RefCallback<T | null>;
export default useCombinedRefs;