typedef (Float32Array or Float64Array or DOMMatrix) RotationMatrixType;

[SecureContext, Exposed=Window]
interface OrientationSensor : Sensor {
  readonly attribute FrozenArray<double>? quaternion;
  void populateMatrix(RotationMatrixType targetMatrix);
};

[Constructor(optional SensorOptions sensorOptions), SecureContext, Exposed=Window]
interface AbsoluteOrientationSensor : OrientationSensor {
};

[Constructor(optional SensorOptions sensorOptions), SecureContext, Exposed=Window]
interface RelativeOrientationSensor : OrientationSensor {
};