getTrackingOptions() {
    return /** @type {PositionOptions|undefined} */ (
      this.get(Property.TRACKING_OPTIONS)
    );
  }
Get the tracking options.
See https://www.w3.org/TR/geolocation-API/#position-options.
@return {PositionOptions|undefined} PositionOptions as defined by
    the [HTML5 Geolocation spec
    ](https://www.w3.org/TR/geolocation-API/#position_options_interface).
@observable
@api