updatePolylines method
Update polylines to the map view.
Throws PolylineNotFoundException if the polylines
list contains
polyline that has not beed added to the map view via addPolylines or
contains polyline that has already been removed from the map view.
Implementation
Future<List<Polyline?>> updatePolylines(List<Polyline> polylines) async {
return GoogleMapsNavigationPlatform.instance
.updatePolylines(viewId: _viewId, polylines: polylines);
}