import { nodeHash } from './types';
import { ResolutionResponse, SourceDefinition } from './index';
import NamingService from './NamingService';
import { CryptoRecords } from './publicTypes';
export default class Zns extends NamingService {
    constructor(source?: SourceDefinition);
    resolve(domain: string): Promise<ResolutionResponse | null>;
    owner(domain: string): Promise<string | null>;
    records(domain: string, keys: string[]): Promise<CryptoRecords>;
    allRecords(domain: string): Promise<CryptoRecords>;
    twitter(domain: string): Promise<string>;
    isSupportedDomain(domain: string): boolean;
    isSupportedNetwork(): boolean;
    childhash(parent: nodeHash, label: string): nodeHash;
    private sha256;
    resolver(domain: string): Promise<string>;
    protected normalizeSource(source: SourceDefinition | undefined): SourceDefinition;
    private getRecordsAddresses;
    private getResolverRecords;
    private structureResolverRecords;
    private fetchSubState;
    private getContractField;
    private getContractMapValue;
}