import * as i0 from "@angular/core";
export interface MenuToggleDelegate {
    toggle(): void;
}
export declare class MenuService {
    delegates: Array<MenuToggleDelegate>;
    constructor();
    register(delegate: MenuToggleDelegate): void;
    unregister(delegate: MenuToggleDelegate): void;
    toggle(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<MenuService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<MenuService>;
}