toJson method

Implementation

Map<String, dynamic> toJson() {
  final Map<String, dynamic> data = {};
  if (categories != null) {
    data['categories'] = {};
    categories!.forEach((k, v) {
      data['categories'][k] = v.toJson();
    });
  }
  if (namesMap != null) {
    data['names_map'] = namesMap;
  }
  if (locations != null) {
    data['locations'] = locations;
  }
  return data;
}