MapPolylineLayer constructor
      const
      MapPolylineLayer({})
     
    
Creates the MapPolylineLayer.
Implementation
const MapPolylineLayer({
  Key? key,
  required this.polylines,
  this.animation,
  this.color,
  this.width = 2,
  this.strokeCap = StrokeCap.butt,
  this.dashArray = const <double>[0, 0],
  IndexedWidgetBuilder? tooltipBuilder,
}) : super(key: key, tooltipBuilder: tooltipBuilder);