toJson method
Implementation
Map<String, dynamic> toJson() => {
'givenName': givenName,
'surname': surname,
'phoneNumber': phoneNumber,
'streetAddress': streetAddress,
'extendedAddress': extendedAddress,
'locality': locality,
'region': region,
'postalCode': postalCode,
'countryCodeAlpha2': countryCodeAlpha2
};