Question$1$: Creating a Library Management System in python language Step $1$: Designing the Core Classes $1.$ Book Class Design: Create a class called Book with attributes $($ title, author, genre, and availability status$).$ Include a method within the class to check the availability of the book. $2.$ Library Class Construction: Develop a class named Library that initializes an empty list to store books. Implement methods to add books to the library, remove books, and search for books by title, author, or genre. Step $2$: Handling Different Types of Materials $1.$ Specialized Material Types: $$ Utilize inheritance to derive specialized Material types like Books, DVDs$,$ and Journals from a parent class, called Material. $$ Each subclass should have unique attributes$/$methods relevant to its type, such as ISBN for books, duration for DVDs$,$ and publication date for Journals. $2.$ Library Functionality Expansion: $$ Enhance the Library class to manage different material types efficiently. $$ Implement methods to: $$ Display the available materials for each type. $$ Calculate the total count of materials per type. Step $3$: Handling Checkouts and Returns $1.$ Abstract Transaction Class Creation: Establish an abstract class named Transaction with abstract methods like checkout$()$ and return$\_$material$().$ Develop subclasses like IssueTransaction and ReturnTransaction, each featuring its transaction handling method. $$ Note: The Transaction class will serve as a base for different transaction types, ensuring consistency across all transaction processes. $2.$ Modifying the Library Class for Transaction Handling: $$ Support Various Transaction Types: Modify the Library class to incorporate multiple transaction types by utilizing polymorphism. $$ Implementing transaction$\_$handling$($transaction$\_$type$)$: Within the Library class, create a method named transaction$\_$handling$($transaction$\_$type$)$ to handle checkouts and returns based on the chosen transaction type passed as an argument. $$ Polymorphic Behavior: The transaction$\_$handling$()$ method in the Library class will use polymorphism to interact with different transaction types. Step $4$: Advanced Features and Security Measures $1.$ Secure Data Access: Implement getter$-$setter methods within classes to regulate access to sensitive material or transaction information. Enforce security measures within the system to prevent unauthorized access to specific functionalities. After implementing the above classes, please solve the below questions: $1.$ Describe the inheritance hierarchy within the library management system. Provide an example of a specialized material class derived from the base Material class and elucidate how it extends the functionality of the base class. $2.$ Explain the role of polymorphism in handling transactions within the library management system. Illustrate how different transaction types are accommodated within the Library class using polymorphic behavior. $3.$ Demonstrate the usage of getter$-$setter methods for controlling access to sensitive information in the implemented system. Provide examples showcasing how these methods contribute to data security within the library management context.