import { EventEmitter } from '@angular/core';
import { Subject } from 'rxjs';
import { Zone } from '../types.service';
import * as i0 from "@angular/core";
/**
 * Atomic zone change service to break cyclic dependencies issue
 */
export declare class ZoneChangeService {
    zoneChange: Subject<Zone | null>;
    zonesForUserChange: Subject<Zone[] | null>;
    private currentZone;
    private currentZones;
    floorHasChanged: EventEmitter<Zone>;
    constructor();
    static ɵfac: i0.ɵɵFactoryDeclaration<ZoneChangeService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<ZoneChangeService>;
}