public static void UnsubscribeGeoLocationChanged(this IUsesGeoLocation obj, Action <GeographicCoordinate> onChangeAction)
 {
     UnsubscribeGeoLocationChangedAction(onChangeAction);
 }
 public static bool TryGetGeoLocation(this IUsesGeoLocation obj, out GeographicCoordinate coordinate)
 {
     return(TryGetGeoLocationAction(out coordinate));
 }