@NotNull fun copy(@Nullable customerId: java.lang.String, @NotNull contactName: java.lang.String, @NotNull phoneNumber: java.lang.String, @NotNull email: java.lang.String, @NotNull street1: java.lang.String, @NotNull street2: java.lang.String, @NotNull city: java.lang.String, @NotNull state: java.lang.String, @NotNull zipCode: java.lang.String, @NotNull country: java.lang.String): BillToData