anchor.diff:  /// bearing, see https://www.movable-type.co.uk/scripts/latlong.html#bearing.
   /// The supplied coordinates [startLatitude], [startLongitude], [endLatitude]
   /// and [endLongitude] should be supplied in degrees.
  -@Deprecated('call geolocator.bearingBetween instead'
  -    'this  feature was deprecated after 6.0.0+4')
  +@Deprecated(
  +    'Call geolocator.bearingBetween() instead.'
  +    'This  feature was deprecated after 6.0.0+4.')
   double bearingBetween(
     double startLatitude,
     double startLongitude,
  
positive.code: //#region   deprecated methods
  /// Returns a [Future] indicating if the user allows the App to access
  /// the device's location.
  @Deprecated('call Geolocator.checkPermission() instead'
      'this  feature was deprecated after 6.0.0+4')
  Future<LocationPermission> checkPermission() =>
      GeolocatorPlatform.instance.checkPermission();
  
  
negative.code: /// formula (see https://en.wikipedia.org/wiki/Haversine_formula). The
  /// supplied coordinates [startLatitude], [startLongitude], [endLatitude] and
  /// [endLongitude] should be supplied in degrees.
  @Deprecated(
      'Call Geolocator.distanceBetween() instead.'
      'This  feature was deprecated after 6.0.0+4.')
  double distanceBetween(
    double startLatitude,
    double startLongitude,
  