Respect\Validation\Rules\RomanTest::providerForRoman PHP Method

    public function providerForRoman()
    {
        return [[''], ['III'], ['IV'], ['VI'], ['XIX'], ['XLII'], ['LXII'], ['CXLIX'], ['CLIII'], ['MCCXXXIV'], ['MMXXIV'], ['MCMLXXV'], ['MMMMCMXCIX']];
    }