> > let you do trick with runtime validation > What do you exactly mean by trick? As I read the parent, they're using "do [the] trick" in the idiomatic sense

> > let you do trick with runtime validation > What do you exactly mean by trick? As I read the parent, they're using "do [the] trick" in the idiomatic sense of "get the job done" (more commonly heard in phrases like "X did the trick"), not saying that there's a specific "trick with runtime validation" that they want to do.