import { Helpers as HelpersLogger } from 'ng2-logger'; import { Mapping } from './mapping'; import { JSON10 } from 'json10'; export declare class Helpers extends HelpersLogger { static JSON: typeof JSON10; static get Mapping(): { encode(json: Object, mapping: Mapping.Mapping<{}>): T; decode(json: Object, autodetect?: boolean): Mapping.Mapping<{}>; }; static checkValidUrl(url: string): boolean; }