I am trying to use setticker(node thenode[, num tickspersecond]), but I don't know how to write FlexScript as a node and pass it into this function. I was reading @phil.bobo's answer under this post https://answers.flexsim.com/questions/67068/how-to-make-asynchronous-call-to-web-service.html. I figured it should be similar to the callbackNode mentioned in this post. How exactly can we write some code as a node?