:switches ',(clnl-model:switches model)))))
,@(when netlogo-callback-fn
`((defun ,netlogo-callback-fn (,(intern "NETLOGO-CODE" *model-package*))
:switches ',(clnl-model:switches model)))))
,@(when netlogo-callback-fn
`((defun ,netlogo-callback-fn (,(intern "NETLOGO-CODE" *model-package*))