 
     internal class DeleteData : ChangeData   {
 
-        required override init() {
+        required init() {
             super.init()
         }
 

    internal class InsertData : ChangeData {
        var attributesAndValues: ValueContainerType?

        required override init() {
            super.init()
        }


        var attributesAndValues: ValueContainerType?
        var updatedAttributes:   [String]?

        required init() {
            super.init()
        }

