I will courteously disagree about Void, but other than that, this is a great way to summarize a year of learning Swift:

1year #Swift for me:
Going from

(error:NSError, user:UserObject, randomdata:Int ) -> Void in

to

error, user, _ in pic.twitter.com/WV9hiAKoyW

— Ⓒⓐⓡⓞ (@_Caro_N) September 1, 2015

Thanks, August