import * as i0 from "@angular/core";
export declare class IdleDetectionService {
    private activityEvents$;
    private idleSubscription;
    startWatching(idleCallback: () => void, idleTimeout?: number): void;
    stopWatching(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<IdleDetectionService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<IdleDetectionService>;
}
