code: def add_member(self, container_id, member_id):
          
          route_values = {}
          if container_id is not None:
              route_values['containerId'] = self._serialize.url('container_id', container_id, 'str')
          if member_id is not None:
              route_values['memberId'] = self._serialize.url('member_id', member_id, 'str')
          response = self._send(http_method='PUT',
                                location_id='8ba35978-138e-41f8-8963-7b1ea2c5f775',
                                version='5.0-preview.1',
                                route_values=route_values)
          return self._deserialize('bool', response)
docs: AddMember.
          [Preview API]
          :param str container_id:
          :param str member_id:
          :rtype: bool