code: def read_aldb(self, mem_addr=0x0000, num_recs=0):
          
          if self._aldb.version == ALDBVersion.Null:
              _LOGGER.info('Device %s does not contain an All-Link Database',
                           self._address.human)
          else:
              _LOGGER.info('Reading All-Link Database for device %s',
                           self._address.human)
              asyncio.ensure_future(self._aldb.load(mem_addr, num_recs),
                                    loop=self._plm.loop)
              self._aldb.add_loaded_callback(self._aldb_loaded_callback)
docs: Read the device All-Link Database.