led.py 文件源码

def get(self, led_type: LEDType) -> LED:
        """
        Fetches the requested LED interface on this device

        :param led_type: The LED type to fetch

        :return: The LED interface, if available
        """
        if led_type not in self._driver.supported_leds:
            return None

        if led_type not in self._leds:
            self._leds[led_type] = LED(self._driver, led_type)
            self._leds[led_type].observe(self._led_changed)

        return self._leds[led_type]