code: async def connect(self, conn_id, connection_string):
          
  
          if connection_string.startswith('device/'):
              adapter_id, local_conn = self._find_best_adapter(connection_string, conn_id)
              translate_conn = True
          elif connection_string.startswith('adapter/'):
              adapter_str, _, local_conn = connection_string[8:].partition('/')
              adapter_id = int(adapter_str)
              translate_conn = False
          else:
              raise DeviceAdapterError(conn_id, 'connect', 'invalid connection string format')
  
          if self.adapters[adapter_id].can_connect() is False:
              raise DeviceAdapterError(conn_id, 'connect', 'chosen adapter cannot handle another connection')
  
          # Make sure to set up the connection information before
          # so there are no races with events coming soon after connect.
          self._setup_connection(conn_id, local_conn)
          self._track_property(conn_id, 'adapter', adapter_id)
          self._track_property(conn_id, 'translate', translate_conn)
  
          try:
              await self.adapters[adapter_id].connect(conn_id, local_conn)
          except:
              self._teardown_connection(conn_id)
              raise
docs: Connect to a device.
  
          See :meth:`AbstractDeviceAdapter.connect`.