import { BehaviorSubject, Observable } from 'rxjs';
import * as i0 from "@angular/core";
export declare class AppEventService {
    readonly change: BehaviorSubject<any>;
    readonly add: BehaviorSubject<any>;
    readonly remove: BehaviorSubject<any>;
    readonly added: Observable<any>;
    readonly changed: Observable<any>;
    readonly removed: Observable<any>;
    constructor();
    static ɵfac: i0.ɵɵFactoryDeclaration<AppEventService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<AppEventService>;
}