# Tweet by [@keefmoon](http://twitter.com/keefmoon) on 2017-01-12 17:45:31 > [!INFO] Archived from [original tweet](http://twitter.com/keefmoon/status/819601214149103617) In reply to: [@pilky](http://twitter.com/pilky/status/819547692577779712) @pilky How about a success block and a separate failure block instead? In Swift I use an Result enum, but separate block seems best for ObjC