How to use iOS SDK SWGCustomSettings to set Custom Values

Thanks for this tutorial and question. I have a specific question of iOS oc API. I would appreciate it if someone having similar experience get a time to help.
How to use get customize values set in “settings” variable?

 userAPI.setCustomSettingsWithCompletionBlock(settings) { (success:SWGSuccess!, error:NSError!) -> Void in
            
 }

I opened another thread here: