import { Observable } from 'rxjs';
import * as i0 from "@angular/core";
export declare class VerticalNavService {
    private _animateOnCollapsed;
    private _collapsedChanged;
    private _collapsed;
    private _collapsible;
    get animateOnCollapsed(): Observable<boolean>;
    get collapsedChanged(): Observable<boolean>;
    get collapsed(): boolean;
    set collapsed(value: boolean);
    get collapsible(): boolean;
    set collapsible(value: boolean);
    private updateCollapseBehavior;
    static ɵfac: i0.ɵɵFactoryDeclaration<VerticalNavService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<VerticalNavService>;
}