in python please! $(2)$ Build the ShoppingCart class with the following data attributes and related methods. Note: Some can be method stubs $($empty methods$)$ initially, to be completed in later steps. $-$ Parameterized constructor which takes the customer name and date as parameters $(2$ pts$)-$ Attributes $-$ customer$\_$name $($string$)-$ Initialized in default constructor to "none" $-$ current$\_$date $($string$)-$ Initialized in default constructor to "January $1,2016"-$ cartitems $($list$)-$ Methods $-$ add$\_$item$0-$ Adds an item to cart$\_$items list. Has a parameter of type ItemToPurchase. Does not return anything. $-$ remove$\_$item$0-$ Removes item from cart$\_$items list. Has a string $($an item's name$)$ parameter. Does not return anything. $-$ If item name cannot be found, output this message: Item not found in cart. Nothing removed. $-$ modify$\_$item$0-$ Modifies an item's quantity. Has a parameter of type ItemToPurchase. Does not return anything. $-$ If item can be found $($by name$)$ in cart, modify item in cart. $-$ If item cannot be found $($by name$)$ in cart, output this message: Item not found in cart. Nothing modified. $-$ get$\_$num$\_$items$\_$in$\_$carto $(2$ pts$)-$ Returns quantity of all items in cart. Has no parameters. $-$ get$\_$cost$\_$of$\_$cart$()(2$ pts$)-$ Determines and returns the total cost of items in cart. Has no parameters. $-$ print$\_$total$()-$ Outputs total of objects in cart. $-$ If cart is empty, output this message: SHOPPING CART IS EMPTY $-$ print$\_$descriptions$0-$ Outputs each item's description.