code: async def open_interface(self, conn_id, interface):
          
  
          self._ensure_connection(conn_id, True)
          connection_string = self._get_property(conn_id, "connection_string")
  
          msg = dict(interface=interface, connection_string=connection_string)
          await self._send_command(OPERATIONS.OPEN_INTERFACE, msg, COMMANDS.OpenInterfaceResponse)
docs: Open an interface on an IOTile device.
  
          See :meth:`AbstractDeviceAdapter.open_interface`.