Add void print

internal/constants/order/order.go

@@ -3,10 +3,13 @@ package order
 type OrderStatus string
 
 const (
-	New     OrderStatus = "NEW"
-	Paid    OrderStatus = "PAID"
-	Cancel  OrderStatus = "CANCEL"
-	Pending OrderStatus = "PENDING"
+	New      OrderStatus = "NEW"
+	Paid     OrderStatus = "PAID"
+	Cancel   OrderStatus = "CANCEL"
+	Pending  OrderStatus = "PENDING"
+	Refunded OrderStatus = "REFUNDED"
+	Voided   OrderStatus = "VOIDED"
+	Partial  OrderStatus = "PARTIAL"
 )
 
 func (b OrderStatus) toString() string {

internal/constants/transaction/transaction.go

@@ -6,6 +6,7 @@ const (
 	New    PaymentStatus = "NEW"
 	Paid   PaymentStatus = "PAID"
 	Cancel PaymentStatus = "CANCEL"
+	Refund PaymentStatus = "REFUND"
 )
 
 func (b PaymentStatus) toString() string {