23    public function __construct(
 
   24        private string $itemIdentifier,
 
   25        private string $categoryName,
 
   28    public function getItemIdentifier() : 
string{ 
return $this->itemIdentifier; }
 
   30    public function getCategoryName() : 
string{ 
return $this->categoryName; }
 
   32    public static function read(ByteBufferReader $in) : 
self{
 
   33        $itemIdentifier = CommonTypes::getString($in);
 
   34        $categoryName = CommonTypes::getString($in);
 
   41    public function write(ByteBufferWriter $out) : 
void{
 
   42        CommonTypes::putString($out, $this->itemIdentifier);
 
   43        CommonTypes::putString($out, $this->categoryName);