import _isFQDN from 'validator/lib/isFQDN';
import { TReferenceProps } from '../../..';
import { IStringProps, TStringValidatorResult } from '../_types';
declare type TParameters = Parameters<typeof _isFQDN>;
export interface IIsFQDNProps {
    /**
     * Options is an object which defaults to `{ require_tld: true, allow_underscores: false, allow_trailing_dot: false, allow_numeric_tld: false, allow_wildcard: false }`. If `allow_wildcard` is set to `true`, the validator will allow domain starting with *. (e.g. *.example.com or *.shop.example.com).
     */
    options?: TParameters[1];
}
/**
 * Check if the string is a fully qualified domain name (e.g. `domain.com`).
 */
export declare const isFQDN: (props?: TReferenceProps<IIsFQDNProps> & IStringProps) => TStringValidatorResult;
export {};