import { RefObject } from 'react';
/**
 * Removes every focusable descendant of the given element from the tab order.
 *
 * Blocks keyboard entry only — the subtree stays visible and readable by
 * assistive technology. Elements added later are handled as well. Original
 * `tabindex` values are kept on the nodes and restored on cleanup.
 *
 * @function useDisableFocusWithin
 * @param ref Root element whose descendants are taken out of the tab order
 * @param disabled Enables the behavior
 *
 * @category Hooks
 */
export declare function useDisableFocusWithin(ref: RefObject<HTMLElement | null>, disabled?: boolean): void;