Stichoza\GoogleTranslate\TranslateClient::isValidLocale PHP Метод

Check if given locale is valid.

private isValidLocale ( string $lang ) : boolean
$lang	string	Langauge code to verify
Результат	boolean

    private function isValidLocale($lang)
    {
        return (bool) preg_match('/^([a-z]{2})(-[A-Z]{2})?$/', $lang);
    }

TranslateClient