toJson method Null safety

Map<String, dynamic> toJson()

Implementation

core.Map<core.String, core.dynamic> toJson() => {
      if (countryCode != null) 'countryCode': countryCode!,
      if (countryDartId != null) 'countryDartId': countryDartId!,
      if (dartId != null) 'dartId': dartId!,
      if (dmaId != null) 'dmaId': dmaId!,
      if (kind != null) 'kind': kind!,
      if (metroCode != null) 'metroCode': metroCode!,
      if (name != null) 'name': name!,
    };