toJson method
Los componentes en la forma que espera el servicio.
Implementation
Map<String, dynamic> toJson() => <String, dynamic>{
if (country != null) 'Country': country,
if (region != null) 'Region': region,
if (subRegion != null) 'SubRegion': subRegion,
if (locality != null) 'Locality': locality,
if (district != null) 'District': district,
if (street != null) 'Street': street,
if (addressNumber != null) 'AddressNumber': addressNumber,
if (postalCode != null) 'PostalCode': postalCode,
};