import type { Ref, RefCallback, RefObject } from 'react';
/**
 * Create ref that updates all accepted refs from list.
 * In functional components you can use wrapper hook `useMergeRefs`.
 * @param list Refs for merge.
 * @returns Merged ref.
 */
export declare function mergeRefs<T>(list: Array<Ref<T> | RefObject<T> | RefCallback<T> | null | undefined>): Ref<T>;