Получить поля свойства инфоблока - CIBlock::GetFields ?

$IBLOCK_ID =40;
$res = CIBlock::GetProperties($IBLOCK_ID);
while($res_arr = $res->Fetch()){
        echo "<pre>property: "; print_r($res_arr); echo "</pre>";
        if($res_arr['CODE'] == "PAKET"){
            $property_enums = CIBlockPropertyEnum::GetList(Array("DEF"=>"DESC", "SORT"=>"ASC"), Array("IBLOCK_ID"=>$IBLOCK_ID, "CODE"=>"PAKET"));
                while($enum_fields = $property_enums->GetNext())
                {
                  echo "<pre>field: "; print_r($enum_fields); echo "</pre>";
                }
        }
    }