Overrides Constraint::ERROR_NAMES
protected const ERROR_NAMES = [ self::TOO_SHORT_ERROR => 'TOO_SHORT_ERROR', self::TOO_LONG_ERROR => 'TOO_LONG_ERROR', self::INVALID_CHARACTERS_ERROR => 'INVALID_CHARACTERS_ERROR', self::CHECKSUM_FAILED_ERROR => 'CHECKSUM_FAILED_ERROR', self::TYPE_NOT_RECOGNIZED_ERROR => 'TYPE_NOT_RECOGNIZED_ERROR', ];