import { Ref, DefineComponent, Component } from 'vue';
/**
 * `true` if `el` or any of his children are in focus
 *
 *  if set to `true` set `el` focused, but if any of `el` children was focused before, set child focused instead
 *
 * @notice this will not trigger native `focus` event and you need to trigger it manually and handle infinite loop
 */
export declare const useFocusDeep: (el?: Ref<HTMLElement | DefineComponent | undefined | Component>) => import("vue").WritableComputedRef<boolean | undefined> & {
    /** Focus `el` if focus is not set to any other element */
    focusIfNothingIfFocused: () => void;
    focusPreviousElement: () => void;
};