toJson method
Implementation
Map<String, dynamic> toJson() {
final Map<String, dynamic> data = new Map<String, dynamic>();
data['apartment'] = this.apartment;
data['area'] = this.area;
data['pincode'] = this.pincode;
data['landmark'] = this.landmark;
data['city'] = this.city;
data['state'] = this.state;
data['country'] = this.country;
return data;
}