toJson method
Implementation
Map<String, dynamic> toJson() {
final Map<String, dynamic> data = new Map<String, dynamic>();
data['id'] = this.id;
data['name'] = this.name;
data['country_id'] = this.countryId;
if (this.city != null) {
data['city'] = this.city!.map((v) => v.toJson()).toList();
}
return data;
}