import * as React from 'react';
export type Ref<T> = ((instance: T) => void) | React.MutableRefObject<T> | null | undefined;
/**
 *
 * Integrate multiple refs into one.
 *
 * @remarks This hook takes refs and returns a function that would receive an instance and then call the refs
 * if they are functions, or assign the instance to them otherwise.
 *
 * Note that the intention is to provide refs statically and not dynamically,
 * so try not to spread refs array into its argument.
 *
 * @param refs - functions or mutable refs
 */
export declare function useMergeRefs<T>(...refs: Ref<T>[]): (instance: T) => void;