Write code in python and answer every part.

Write a python code for the following:

Level $1$: $($Pass level$)$:

$$ Class Customers:

Write a class named customer and add the following:

a$.$ Each customer has a unique ID$,$

b$.$ unique name $($a name will only contain alphabet characters$),$

c$.$ Each customer also has some reward points.

d$.$ This class named customer also support the following functions:

$$ Attributes ID$,$ name, and reward

$$ Constructor takes the values of ID$,$ name, and reward as arguments

$$ Appropriate getter methods for the attributes of this class

$$ A method get$\_$reward which should be an empty super method

$$ A method get$\_$discount which should be an empty super method

$$ A method update$\_$reward which should be an empty super method

$$ A method display$\_$info which should be an empty super method

$$ Class BasicCustomers:

Write a class named BasicCustomers and add the following:

a$.$ All Basic customers have a flat reward rate when making a purchase $($i$.$e$.,$ all Basic customers have the same reward rate$),$

b$.$ By default, the flat reward rate is $100\%,$

c$.$ This class named BasicCustomer should have the following components:

$$ An attribute for the reward rate.

$$ Constructor takes the appropriate parameters$/$arguments$.$

$$ Appropriate getter methods for the attributes of this class

$$ A method get$\_$reward which takes the total cost and returns the reward. Note, the reward is always rounded. For example, when the total cost is $14\mathrm{.}8$ and the reward rate is $100\%,$ then the method will returns the reward which is round$(14\mathrm{.}8$ x $100\%)=15.$

$$ A method update$\_$reward which takes a value and increase the attribute reward with that value.

$$ A method display$\_$info that prints the values of the BasicCustomer attributes.

$$ A method set$\_$reward$\_$rate to adjust the reward rate. This method affects all Basic customers.

$$ Class VIPCustomer:Write a class named VIPCustomer and add the following:

a$.$ A VIP customer not just receives the reward but also gets a discount for the purchase.

b$.$ The reward rate is the same for all VIP customers and has the default value of $100\%.$

c$.$ On the other hand, the discount rate is different among VIP customers.

d$.$ If not specified, the discount rate is set as $8\%.$

e$.$ Note that the reward is computed after the discount. For example, with a reward rate of $100\%$ and discount rate of $8\%,$ if a VIP customer makes a purchase with the original total cost of $30$$$,$ then discount will be $30$ x $8\%=2\mathrm{.}4$$$,$ the total cost after the discount is $27\mathrm{.}6$$$,$ and thus, the a reward is round$(27\mathrm{.}6$ x $100\%)=28.$

f$.$ This class named VIPCustomer should have the following components:

$$ Appropriate attributes to support the reward rate and discount rate

$$ Constructor takes the appropriate parameters$/$arguments

$$ Appropriate getter methods for the attributes of this class

$$ A method get$\_$discount which takes the total cost and returns the discount offered

$$ A method get$\_$reward which takes the total cost and returns the reward

$$ A method update$\_$reward which takes a value and increase the attribute reward with that value.

$$ A method display$\_$info that prints the values of the VIPCustomer attributes

$$ A method set$\_$reward$\_$rate to adjust the reward rate. This method affects all VIP customers.

$$ A method set$\_$discount$\_$rate to adjust the discount rate of each individual VIP customer.

$$ Class Products:

a$.$ This class is to keep track of information on different products that the pharmacy offers.

b$.$ This class supports the following information:

$$ ID: a unique identifier of the product.

$$ name: the name of the product $($you can assume the product names are unique and they do not include any digit$).$

$$ price: the unit price of the product

$$ A method display$\_$info that prints the values of the Product attributes

$$ Stock Quantity: An integer representing the current stock level of the product with is$\_$in$\_$stock$($method$)$: Quickly checks stock availability.

$$ Class Order:

a$.$ This class is to store a customer's purchase information.

b$.$ This class supports the following information of an order:

$$ customer: the one who makes the purchase $($can be a Basic or VIP customer$).$ Use customer ID to differentiate between the customer while making a purchase whether it is a basic customer or VIP customer.

$$ product: the product of the purchase. Use Product ID$.$

$$ quantity: the quantity of the product ordered by the customer

$$ A method compute$\_$cost that returns the original total cost $($the cost before the discount$),$ the discount, the final total cost $($the cost after the discount$),$ and the reward. For example, if the original total cost of an order of the customer Tom $($VIP customer with reward rate of $100\%$ and discount rate of $8\%)$ is $30,$ then this method will return $(30,2\mathrm{.}4,27\mathrm{.}6,28).$

$$ A method to update the stock quantity of the product when an order is placed.

$$ Unique Order ID: Add an attribute for a unique order ID$.$ A method to update the stock quantity of the product when an order is placed.

Unique Order ID: Add an attribute for a unique order ID$.$

Question is Continued in the images.