How to use the liquidctl.pmbus.WriteBit.WRITE function in liquidctl

def _set_fan_control_mode(self, mode):
        """Set hardware/software fan control mode."""
        return self._exec(WriteBit.WRITE, _CORSAIR_FAN_CONTROL_MODE, [mode.value])

def initialize(self, single_12v_ocp=False, **kwargs):
        """Initialize the device.

        Necessary to receive non-zero value responses from the device.

        Note: replies before calling this function appear to follow the
        pattern <address>    .
        """
        self._write([0xfe, 0x03])  # not well understood
        self._read()
        mode = OCPMode.SINGLE_RAIL if single_12v_ocp else OCPMode.MULTI_RAIL
        if mode != self._get_12v_ocp_mode():
            # TODO replace log level with info once this has been confimed to work
            LOGGER.warning('(experimental feature) changing +12V OCP mode to %s', mode)
            self._exec(WriteBit.WRITE, _CORSAIR_12V_OCP_MODE, [mode.value])
        if self._get_fan_control_mode() != FanControlMode.HARDWARE:
            LOGGER.info('resetting fan control to hardware mode')
            self._set_fan_control_mode(FanControlMode.HARDWARE)
        self.device.release()
</address>

def set_fixed_speed(self, channel, duty, **kwargs):
        """Set channel to a fixed speed duty."""
        duty = clamp(duty, _MIN_FAN_DUTY, 100)
        LOGGER.info('ensuring fan control is in software mode')
        self._set_fan_control_mode(FanControlMode.SOFTWARE)
        LOGGER.info('setting fan PWM duty to %i%%', duty)
        self._exec(WriteBit.WRITE, CMD.FAN_COMMAND_1, [duty])
        self.device.release()