toJson method
Implementation
Map<String, dynamic> toJson() {
final Map<String, dynamic> data = {};
data['locations'] = locations.toJson();
if (description != null) {
data['description'] = description;
}
data['vehicles'] = vehicles.map((veh) => veh.toJson()).toList();
data['shipments'] = shipments.map((ship) => ship.toJson()).toList();
return data;
}