code: func NewGroveLedDriver(a DigitalWriter, pin string) *GroveLedDriver {
  	return &GroveLedDriver{
  		LedDriver: NewLedDriver(a, pin),
  	}
  }
docs: // NewGroveLedDriver return a new GroveLedDriver given a DigitalWriter and pin.
  //
  // Adds the following API Commands:
  //	"Brightness" - See LedDriver.Brightness
  //	"Toggle" - See LedDriver.Toggle
  //	"On" - See LedDriver.On
  //	"Off" - See LedDriver.Off