6 Marks As you have learned, the Facade hides all the details of the model from the user interface. Below given a scenario about online shopping. An online shop may act as a front for a number of individual suppliers but this is hidden from customers, who interact with a single ordering and payment system. The shop may accept card payments, and convert the amount charged from the currency used where the shop is based into the one used in the customer's country. Draw a simple facade pattern UML diagram to demonstrate this scenario. You must include appropriate methods in your diagram