import * as i0 from "@angular/core";
export declare class SliderMenuService {
    private isExpanded;
    subscribe(callback: (isExpanded: boolean) => void): void;
    updateExpanded(isExpanded: boolean): void;
    get isSliderExpanded(): boolean;
    static ɵfac: i0.ɵɵFactoryDeclaration<SliderMenuService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<SliderMenuService>;
}