import type { DnsProvider } from '../dns/DnsProvider';
import type { EdgeNodeCertificateProvisioner } from './EdgeNodeCertificateProvisioner';
interface Dns01CertificateProvisionerOptions {
    provider: DnsProvider;
    rootDomain?: string | null;
    ttl?: number | string | null;
}
export declare class Dns01CertificateProvisioner implements EdgeNodeCertificateProvisioner {
    private readonly logger;
    private readonly provider;
    private readonly rootDomain?;
    private readonly ttl?;
    private readonly enabled;
    constructor(options: Dns01CertificateProvisionerOptions);
    handleCertificateRequest(nodeId: string, metadata: Record<string, unknown>): Promise<void>;
    publishChallenge(host: string, value: string, nodeId?: string): Promise<void>;
    removeChallenge(host: string, nodeId?: string): Promise<void>;
    private extractPayload;
    private extractSubdomain;
    private asString;
    private composeHost;
    private splitHost;
    private normalizeRootDomain;
    private normalizeTtl;
    private removeRecord;
}
export {};