import { RefObject } from "react";
/**
 * Traps the focus within the children of the ref element.
 *
 * @param active - Turns the focus trapping on or off. Also adds aria-hidden on the
 * body but not the dialog.
 *
 * @returns ref
 */
export declare function useFocusTrap<T extends HTMLElement>(active: boolean): RefObject<T>;