     // MARK: Types
     
     enum Key: String {
-        case Data = "data"
-        case Category = "category"
+        case data = "data"
+        case category = "category"
     }
     
-    // MARK: Properties
+    // MARK: Instance Variables
     
     var image: UIImage? {
         get {

    }
    
    convenience init(data: Data, context: NSManagedObjectContext) {
        let entity = NSEntityDescription.entity(forEntityName: CategoryImage.type, in: context)!
        self.init(entity: entity, insertInto: context)
        self.data = data
    }

        }
    }
    
    private lazy var _image: UIImage? = {
        return UIImage(data: self.data! as Data)
    }()
    
