 
     // MARK: Insert
     func appendObjects(_ newObjects: [ListObject]) {
-        
+        guard !newObjects.isEmpty else { return }
+
         let lower = self.objects.value.count
         let upper = lower + newObjects.count
         let range = lower..<upper

    }
    
    func removeObjects(_ objects: [ListObject]) {
        var indexPaths: [IndexPath] = []
        
        // reverse arrays, so we can remove current idx in loop

    }
    
    func insertObjects(_ newObjects: [ListObject], at index: Int = 0) {
        guard !newObjects.isEmpty else { return }

        self.objects.mutate { objects in
            objects.insert(contentsOf: newObjects, at: index)
        }
