import { Subject } from 'rxjs';
import * as i0 from "@angular/core";
export declare class MessagerService {
    alertSubject: Subject<unknown>;
    confirmSubject: Subject<unknown>;
    promptSubject: Subject<unknown>;
    alert(options: any): void;
    confirm(options: any): void;
    prompt(options: any): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<MessagerService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<MessagerService>;
}