toJson method
Implementation
Map<String, dynamic> toJson() {
final Map<String, dynamic> data = <String, dynamic>{};
data['center'] = center;
data['adcode'] = adcode;
data['polylines'] = polylines;
data['citycode'] = citycode;
data['level'] = level;
data['districts'] = districts;
data['name'] = name;
return data;
}