import { Observable, Subject } from 'rxjs';
import type { DiscoveryEvent, DiscoveryTransporter, MdnsMessage, NodeMetadata, NodeRef, ServiceDirectory } from '@spider-mesh/core';
export type WebsocketDiscoveryClientOptions = {
    reconnectIntervalMs?: number;
    heartbeatIntervalMs?: number;
};
export declare class WebsocketDiscoveryClient extends Subject<DiscoveryEvent> implements DiscoveryTransporter, ServiceDirectory {
    #private;
    private readonly url;
    private readonly options;
    constructor(url: string, options?: WebsocketDiscoveryClientOptions);
    broadcast(data: MdnsMessage<NodeMetadata>): Promise<void>;
    watchService(service: string): Observable<NodeRef[]>;
    listNodes(service: string): NodeRef[];
}