import { Observable } from 'rxjs';
import * as i0 from "@angular/core";
export declare class BroadcastChannelService {
    private channels;
    createChannel(name: string): any;
    subscribe(channelName: string): Observable<any>;
    unsubscribe(channelName: string): void;
    postMessage(channelName: any, message: any): void;
    private createOrGetChannel;
    static ɵfac: i0.ɵɵFactoryDeclaration<BroadcastChannelService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<BroadcastChannelService>;
}