Lua Create the item with an unique id

[Willbor]

The script is this:

function onUse(cid, item, fromPosition, itemEx, toPosition)
    if itemEx.uid ~= 8087 then
        return true
    end
    doCreateItem(1491, 1, toPosition)
    doRemoveItem(8088)
end

I want when create the itemid 1491 set an uniqueid to him, can someone help me? Thanks

 

[Summ]

doItemSetAttribute(doCreateItem(1491, 1, toPosition), "uid", 8000)