Создание инфоблока

$ib = new CIBlock;
            $arFieldsIb = Array(
              "ACTIVE" => "Y",
              "NAME" => $NAME,
              "CODE" => $CODE,
              "SITE_ID" => SITE_ID,
              "IBLOCK_TYPE_ID" => $iType,
              "SORT" => "100",
              "DESCRIPTION" => $Description,
              "DESCRIPTION_TYPE" => "text",
              "GROUP_ID" => Array("2"=>"D", "3"=>"R")
          );
       
          $ID = $ib->Add($arFieldsIb);