     enum Property:String
     {
         case froobSpace = "froobSpace"
+        case plusSpace = "plusSpace"
     }
     
     let froobSpace:Int
+    let plusSpace:Int
     private let kNoSpace:Int = 0
     
-    init(froobSpace:Int)
+    init(froobSpace:Int, plusSpace:Int)
     {
         self.froobSpace = froobSpace
+        self.plusSpace = plusSpace
         
         super.init()
     }

            self.froobSpace = kNoSpace
        }
        
        super.init()
    }
    

    override func modelJson() -> Any
    {
        let json:[String:Any] = [
            Property.froobSpace.rawValue:froobSpace,
            Property.plusSpace.rawValue:plusSpace
        ]
        
        return json
