code: def decline_event(self, comment=None, *, send_response=True):
          
          if not self.object_id:
              raise RuntimeError("Can't accept event that doesn't exist")
  
          url = self.build_url(
              self._endpoints.get('event').format(id=self.object_id))
          url = url + '/decline'
  
          data = {}
          if comment and isinstance(comment, str):
              data[self._cc('comment')] = comment
          if send_response is False:
              data[self._cc('sendResponse')] = send_response
  
          response = self.con.post(url, data=data or None)
  
          return bool(response)
docs: Decline the event
  
          :param str comment: comment to add
          :param bool send_response: whether or not to send response back
          :return: Success / Failure
          :rtype: bool