declare const SUPPORTED_COUNTRY_CODES: readonly ["en", "nl"]; declare const SUPPORTED_LANGUAGES: readonly ["en", "nl"]; declare type IsVatIdValidResponse = { isValid: boolean; message: string; }; declare type CountryCodeType = typeof SUPPORTED_COUNTRY_CODES[number]; declare type SupportedLanguageType = typeof SUPPORTED_LANGUAGES[number]; export declare const checkVatId: (vatId: string, countryCode: CountryCodeType, lang?: SupportedLanguageType) => IsVatIdValidResponse; export {};