code: def add_distribution_list_member(self, distribution_list, members):
          
          members = [{'_content': v} for v in members]
          resp = self.request_single('AddDistributionListMember', {
              'id': self._get_or_fetch_id(distribution_list,
                                          self.get_distribution_list),
              'dlm': members
          })
          return resp
docs: Adds members to the distribution list
  
          :type distribution_list: zobjects.DistributionList
          :param members:          list of email addresses you want to add
          :type members:           list of str