docs: def save(self, *args, **kwargs):
          """Kicks off celery task to re-save associated special coverages to percolator
  
          :param args: inline arguments (optional)
          :param kwargs: keyword arguments
          :return: `bulbs.campaigns.Campaign`
          """
          campaign = super(Campaign, self).save(*args, **kwargs)
          save_campaign_special_coverage_percolator.delay(self.tunic_campaign_id)
          return campaign