     var objectNotificationTokens = [String: NotificationToken]()
     var pendingTrackingUpdates = [ObjectUpdate]()
     var childRelationships = [String: Array<ChildRelationship>]()
-    
+    var modelTypes = [String: Object.Type]()
     var hasChangesValue = false
     
     /* Should be initialized on main queue */

    
    func realmObjectClass(name: String) -> Object.Type {
        
        if let objClass = NSClassFromString(name) {
            return objClass as! Object.Type
        } else {
            let namespace = Bundle.main.infoDictionary!["CFBundleExecutable"] as! String
            return NSClassFromString("\(namespace).\(name)") as! Object.Type
        }
    }
    
    func updateHasChanges(realm: Realm) {

        }
        configuration.objectTypes = [SyncedEntity.self, Record.self, PendingRelationship.self, ServerToken.self]
        return configuration
    }
    
    func setupTypeNamesLookup() {
        
        targetRealmConfiguration.objectTypes?.forEach { objectType in

            modelTypes[objectType.className()] = objectType
        }
    }
    
    func setup() {
