import { DNSRecord, DNSResult } from "./types.js"; export declare function getTld(domain: string): string; export declare function getSld(domain: string): string; export declare function isIp(ip: string): boolean; export declare function isDomain(domain: string): boolean; export declare function resolverEmptyResponse(): DNSResult; export declare function resolverError(e: Error | string): DNSResult; export declare function resolveSuccess(records: DNSRecord[]): DNSResult; export declare function normalizeDomain(domain: string): string; export declare function isPromise(obj: Promise): boolean; //# sourceMappingURL=util.d.ts.map