code: def update_id_list(self, update_ids_finished_cb):
          
          if not self._update_ids_finished_cb:
              self._update_ids_finished_cb = update_ids_finished_cb
              self.anchor_ids = []
              self.active_anchor_ids = []
              self.anchor_data = {}
  
              self.nr_of_anchors = 0
              self.ids_valid = False
              self.data_valid = False
  
              logger.debug('Updating ids of memory {}'.format(self.id))
  
              # Start reading the header
              self.mem_handler.read(self, LocoMemory2.ADR_ID_LIST,
                                    LocoMemory2.ID_LIST_LEN)
docs: Request an update of the id list