import { OnInit, OnDestroy, NgZone } from '@angular/core';
import { AtSidenavService } from './sidenav.service';
import { AtSidenavItem } from './sidenav-item/sidenav-item.model';
import { AtMediaService } from '../media/media.module';
export declare class AtSidenavCollapsibleDirective implements OnInit, OnDestroy {
    private avSidenavService;
    private _mediaService;
    private _ngZone;
    private document;
    private atMediaChange;
    isMobile: boolean;
    currentlyOpen: AtSidenavItem[];
    backdrop: HTMLElement;
    readonly isAtSidenavCollapsed: boolean;
    collapsed: boolean;
    onMouseEnter(): void;
    onMouseLeave(): void;
    constructor(avSidenavService: AtSidenavService, _mediaService: AtMediaService, _ngZone: NgZone, document: any);
    ngOnInit(): void;
    ngOnDestroy(): void;
}