import * as plugins from '../plugins.js';
import type { IChallengeHandler } from './IChallengeHandler.js';
/**
 * DNS-01 challenge handler using CloudflareAccount and Smartdns.
 */
export declare class Dns01Handler implements IChallengeHandler<plugins.tsclass.network.IDnsChallenge> {
    private cf;
    private smartdns;
    constructor(convenientDnsProvider: plugins.tsclass.network.IConvenientDnsProvider, smartdnsInstance?: plugins.smartdnsClient.Smartdns);
    getSupportedTypes(): string[];
    prepare(ch: plugins.tsclass.network.IDnsChallenge): Promise<void>;
    cleanup(ch: plugins.tsclass.network.IDnsChallenge): Promise<void>;
    checkWetherDomainIsSupported(domainArg: string): Promise<boolean>;
}