23    public function __construct(
 
   24        private string $itemId,
 
   25        private string $patternId
 
   28    public function getItemId() : 
string{ 
return $this->itemId; }
 
   30    public function getPatternId() : 
string{ 
return $this->patternId; }
 
   32    public static function read(ByteBufferReader $in) : 
self{
 
   33        $itemId = CommonTypes::getString($in);
 
   34        $patternId = CommonTypes::getString($in);
 
   35        return new self($itemId, $patternId);
 
   38    public function write(ByteBufferWriter $out) : 
void{
 
   39        CommonTypes::putString($out, $this->itemId);
 
   40        CommonTypes::putString($out, $this->patternId);