public static function reformat($size, $fallbackUnits = null)
    {
        return self::format(self::parse($size, $fallbackUnits));
    }
public static function reformat($size, $fallbackUnits = null)
    {
        return self::format(self::parse($size, $fallbackUnits));
    }
@param int    $size
@param string $fallbackUnits

@throws \UnexpectedValueException

@return string