/// <reference types="validator" />
import _isVAT from 'validator/lib/isVAT';
import { TReferenceProps } from '../../..';
import { IStringProps, TStringValidatorResult } from '../_types';
declare type TParameters = Parameters<typeof _isVAT>;
export interface IIsVATProps {
    /**
     * Available country codes: [ `GB`, `IT`,`NL` ].
     */
    countryCode: TParameters[1];
}
/**
 * Checks that the string is a valid VAT number.
 */
export declare const isVAT: (props: TReferenceProps<IIsVATProps> & IStringProps) => TStringValidatorResult;
export {};