import { RefObject } from 'react';
/**
 * Calls `onOutside` when a `mousedown` happens outside every element
 * referenced by `refs`. Refs and callback are read at event time, so the
 * listener is bound only once for the component's lifetime.
 */
export declare function useClickOutside(refs: Array<RefObject<HTMLElement | null>>, onOutside: () => void): void;