import { NgZone } from '@angular/core';
import { Observable } from 'rxjs';
export declare class DialogsService {
    private zone;
    constructor(zone: NgZone);
    alert(message: string, title?: string, buttonName?: string): Observable<any>;
    confirm(message: string, title?: string, buttonLabels?: string[]): Observable<any>;
    prompt(message: string, title?: string, buttonLabels?: string[], defaultText?: string): Observable<any>;
    beep(times: number): Observable<any>;
}