hello from the customers class
Customers
hello from the sales.base class
hello from the world2.invoices class
hello from the world2.base class
welcome from world2
Invoices from world2
Great
Wow 
 so nice! 
hello from the sales.invoices class
welcome from world2
Invoices from world2
Great
Wow 
 so nice! 
Invoices
welcome
