code: func NewMagnetometerDriver(a ble.BLEConnector) *MagnetometerDriver {
  	n := &MagnetometerDriver{
  		name:       gobot.DefaultName("Microbit Magnetometer"),
  		connection: a,
  		Eventer:    gobot.NewEventer(),
  	}
  
  	n.AddEvent(Magnetometer)
  
  	return n
  }
docs: // NewMagnetometerDriver creates a Microbit MagnetometerDriver