diff --git a/Api/bill_example.py b/Api/bill_example.py
index 3ff1846..f883b45 100644
--- a/Api/bill_example.py
+++ b/Api/bill_example.py
@@ -1,6 +1,7 @@
-from formats import print_bill
+from formats import BillPrinter
 from tools import load_json
 
 if __name__ == "__main__":
     data = load_json('./test/fixtures/bill.json')
-    print_bill(data, "", "")
+    printer = BillPrinter("")
+    printer.print_bill(data, "")
diff --git a/Api/customer_order_example.py b/Api/customer_order_example.py
index f3d7d52..6a62680 100644
--- a/Api/customer_order_example.py
+++ b/Api/customer_order_example.py
@@ -1,6 +1,7 @@
-from formats import print_customer_order
+from formats import CustomerOrderPrinter
 from tools import load_json
 
 if __name__ == "__main__":
     data = load_json('./test/fixtures/customer_order.json')
-    print_customer_order(data, "", "")
+    printer = CustomerOrderPrinter("")
+    printer.print_order(data, "")