import { CountryIso2 } from 'react-international-phone';
/**
 * Returns the default countries if the provided countries array is empty.
 *
 * @param countries - An array of country ISO2 codes.
 * @returns An array of country ISO2 codes.
 */
export declare const getDefaultCountriesIfEmpty: (countries: CountryIso2[]) => CountryIso2[];