anchor.diff:  
   // delete a item from local Storage object with key 'STORAGE_KEY'.
   void deleteItemInStorage(item) {
  -  List<Task> storedlist = tasklist.where((i) => i.timestamp != item.timestamp).toList();
  +  List<Task> storedlist = tasklist.where((i) => i.uuid != item.uuid).toList();
     tasklist = storedlist;
     serializeAndSave(tasklist);
   }
  
positive.code:   tasks.forEach((i) {
      resultlist.add({
        "summary": i.summary,
        "timestamp": i.timestamp,
        "scheduled": i.scheduled
      });
    });
  
negative.code: // edit an item in local Storage object 'STORAGE_KEY'.
  void editItemInStorage(Task task) {
    tasklist.forEach((i) {
      if (i.uuid == task.uuid) {
        i.summary = task.summary;
        i.scheduled = task.scheduled;
      }
  