code: def x10_all_lights_on(self, housecode):
          
          msg = X10Send.command_msg(housecode, X10_COMMAND_ALL_LIGHTS_ON)
          self.send_msg(msg)
          self._x10_command_to_device(housecode, X10_COMMAND_ALL_LIGHTS_ON, msg)
docs: Send the X10 All Lights Off command.