code: def send(self, campaign_id):
          
          self.campaign_id = campaign_id
          return self._mc_client._post(url=self._build_path(campaign_id, 'actions/send'))
docs: Send a MailChimp campaign. For RSS Campaigns, the campaign will send
          according to its schedule. All other campaigns will send immediately.
  
          :param campaign_id: The unique id for the campaign.
          :type campaign_id: :py:class:`str`