code: def update_active_id_list(self, update_active_ids_finished_cb):
          
          if not self._update_active_ids_finished_cb:
              self._update_active_ids_finished_cb = update_active_ids_finished_cb
              self.active_anchor_ids = []
  
              self.active_ids_valid = False
  
              logger.debug('Updating active ids of memory {}'.format(self.id))
  
              # Start reading the header
              self.mem_handler.read(self, LocoMemory2.ADR_ACTIVE_ID_LIST,
                                    LocoMemory2.ID_LIST_LEN)
docs: Request an update of the active id list