import type * as http from 'node:http';
import type { JwsVerifier } from './server.classes.jws.verifier.js';
import type { IServerOrderStore, IServerAccountStore } from './server.interfaces.js';
import type { ChallengeVerifier } from './server.classes.challenge.verifier.js';
/**
 * POST /challenge/:id — Trigger or poll an ACME challenge.
 * - POST with `{}` payload: trigger challenge validation
 * - POST-as-GET (null payload): return current challenge state
 */
export declare function createChallengeHandler(baseUrl: string, jwsVerifier: JwsVerifier, orderStore: IServerOrderStore, accountStore: IServerAccountStore, challengeVerifier: ChallengeVerifier): (req: http.IncomingMessage, res: http.ServerResponse, params: Record<string, string>, body: any) => Promise<void>;