import * as i0 from "@angular/core";
export declare class SidebarService {
    constructor();
    private drawerState;
    drawerState$: import("rxjs").Observable<boolean>;
    toggleDrawer(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<SidebarService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<SidebarService>;
}