FastCast terminate cast


this is my current code.

i am trying to terminate the bullet when it times out (if bullet exists for more than 3 seconds then terminate it) but i keep getting this error

image
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if anyone is smart enough to figure it out on the documentation thank you
https://etithespir.it/FastCastAPIDocs/fastcast-objects/activecast/

figured it out
activeCast.Terminate(activeCast)