import { ReplaySubject } from 'rxjs';
import * as i0 from "@angular/core";
export declare class TimelineService {
    check$: ReplaySubject<void>;
    markForCheck(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<TimelineService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<TimelineService>;
}