[Constructor(optional GyroscopeSensorOptions sensorOptions), SecureContext, Exposed=Window]
interface Gyroscope : Sensor {
  readonly attribute double? x;
  readonly attribute double? y;
  readonly attribute double? z;
};

enum LocalCoordinateSystem { "device", "screen" };

dictionary GyroscopeSensorOptions : SensorOptions {
  LocalCoordinateSystem referenceFrame = "device";
};