import { OnDestroy, OnInit } from '@angular/core';
import * as i0 from "@angular/core";
export declare class MenuInitialFocusDirective implements OnInit, OnDestroy {
    private readonly _menu;
    private readonly _elementRef;
    private readonly _renderer;
    private readonly _onDestroy;
    ngOnInit(): void;
    ngOnDestroy(): void;
    /** Apply tabindex="0" to the element if it's not already focusable. */
    private ensureFocusable;
    static ɵfac: i0.ɵɵFactoryDeclaration<MenuInitialFocusDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<MenuInitialFocusDirective, "[uxMenuInitialFocus]", never, {}, {}, never, never, false, never>;
}