public AddressDto?GetBillingAddress([Parent] SupplierDto s) => new AddressDto("Line 1", 1);
public AddressDto?GetShippingAddress([Parent] SupplierDto s) => new AddressDto("Line 1 Shipping", 2);
public ServiceAddressDto GetServiceAddress([Parent] SupplierDto s) => new ServiceAddressDto("Line 1 Service Address", 9);