import { BehaviorSubject } from 'rxjs';
import type { SpiderMeshNode } from './types.js';
export type RegistryPickRpcTargetOptions = {
    node_id?: string;
    filter?: (node: SpiderMeshNode) => boolean;
};
export declare class Registry {
    #private;
    readonly nodes$: BehaviorSubject<Map<string, SpiderMeshNode>>;
    getPeer(nodeId: string): SpiderMeshNode | undefined;
    upsertPeer(node: SpiderMeshNode): SpiderMeshNode;
    removePeer(nodeId: string): boolean;
    listPeers(service?: string): SpiderMeshNode[];
    watch(service?: string): import("rxjs").Observable<SpiderMeshNode[]>;
    pickRpcNode(service: string, options?: RegistryPickRpcTargetOptions): string | null;
    getRpcTransporterName(service: string): string | undefined;
    listTopicNodes(topic: string): SpiderMeshNode[];
}