toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (accountId != null) 'accountId': accountId!,
if (postalCodeGroups != null) 'postalCodeGroups': postalCodeGroups!,
if (services != null) 'services': services!,
if (warehouses != null) 'warehouses': warehouses!,
};