if X monster on screen play alarm

need a script for EX: if orc warlord on screen play alarm

i tried searching with no luck anyone have such a thing?

@secret121
This was made to check for players, but it works on any "creature" name.

Code:

---

local PlayerList = {"Orc Warlord","Demon","Kharsek"}
Module.New('player alert', function(module)
local player = Self.GetSpectators(true)
    for i =1, #player do
        if table.contains(PlayerList, player[i]:Name()) then
            alert()
            module:Delay(2000)
        end
    end
end)

---

thanks