fnnow accepts a parameter name of just_, and gensyms a name for it, so you can write something like(fn (_ x _) ...).isetqnow accepts an arbitrary number of variable/value pairs (likesetq) instead of just one.
fn now accepts a parameter name of just _, and gensyms a name for it, so you can write something like (fn (_ x _) ...).isetq now accepts an arbitrary number of variable/value pairs (like setq) instead of just one.