import { Subject } from 'rxjs';
import type { PubSub } from './types';
export type * from './types';
export declare class PubSubM<Message> implements PubSub<Message> {
    readonly bus$: Subject<Message>;
    pub(msg: Message): void;
    end(): void;
}
export declare class PubSubBC<Message> extends PubSubM<Message> {
    readonly bus: string;
    readonly ch: BroadcastChannel;
    constructor(bus: string);
    pub(msg: Message): void;
    end(): void;
}
/**
 * Creates new cross-tab pubsub broadcast channel. Own messages are also received.
 *
 * @param bus The name of the broadcast bus, where messages will be published.
 * @returns A PubSub instance that publishes messages to the specified bus.
 */
export declare const pubsub: <Events>(bus: string) => PubSub<Events>;