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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def handle(self, **kwargs):
 """ Simply re-saves all objects from models listed in settings.TIMELINE_MODELS. Since the timeline app is now following these models, it will register each item as it is re-saved. The purpose of this script is to register content in your database that existed prior to installing the timeline app. """

      for item in settings.ACTIVITY_MONITOR_MODELS:
        app_label, model = item['model'].split('.', 1)
        content_type = ContentType.objects.get(app_label=app_label, model=model)
        model = content_type.model_class()

        objects = model.objects.all()

        for object in objects:
          try:
            object.save()
          except Exception as e:
            print("Error saving: {}".format(e))