import { Event } from "nostr-tools";
import { Client } from "./client";
export declare function validateKeycrux(e: Event): Promise<any>;
export declare function fetchKeycruxServices(pubkey?: string, relayUrl?: string): Promise<Event[]>;
export declare function fetchKeycruxService(pubkey: string, relayUrl?: string): Promise<never[] | Event>;
export declare class KeycruxClient extends Client {
    constructor({ relayUrl, signerPubkey, privkey, }: {
        relayUrl: string;
        signerPubkey: string;
        privkey?: Uint8Array;
    });
    start(): Promise<void>;
    ping(): Promise<void>;
}