import 'dart:convert'; import 'package:google_maps_flutter/google_maps_flutter.dart'; String localRouteToJson(LocalRoute data) => json.encode(data.toJson()); class LocalRoute { List? route; String? distance; String? duration; LocalRoute({ this.route, this.distance, this.duration, }); Map toJson() { final map = {}; map['distance'] = distance; map['route'] = route?.map((v) => v.toJson()).toList(); map['duration'] = duration; return map; } }