code: def list_campaigns(self, **kwargs):
          
          kwargs = self._verify_sort_options(kwargs)
          kwargs = self._verify_filters(kwargs, Campaign, True)
          api = self._get_api(update_service.DefaultApi)
          return PaginatedResponse(api.update_campaign_list, lwrap_type=Campaign, **kwargs)
docs: List all update campaigns.
  
          :param int limit: number of campaigns to retrieve
          :param str order: sort direction of campaigns when ordered by creation time (desc|asc)
          :param str after: get campaigns after given campaign ID
          :param dict filters: Dictionary of filters to apply
          :return: List of :py:class:`Campaign` objects
          :rtype: PaginatedResponse