import { NgZone } from "@angular/core";
import { Observable } from "rxjs";
export declare class BroadcastChannelRef<T> {
    private readonly _ngZone;
    private readonly _name;
    readonly data$: Observable<T>;
    private readonly _broadcastChannel;
    get name(): string;
    constructor(_ngZone: NgZone, _name: string);
    close(): void;
    send(data: T): void;
}