$1.$ Fields:

$$ title $($string$)$: The title of the book.

$$ author $($string$)$: The author of the book.

$$ is$\_$checked$\_$out $($boolean$)$: Status of whether the book is checked out.

$2.$ Constructors:

$$

$3.$ Methods:

$$ check$\_$out$()$:

$$ return$\_$book$()$: $$

Imagine a local library that needs to manage its books efficiently, especially in terms of

tracking availability and loan status. You are tasked to develop a system to handle these

functionalities with basic error handling.

Write a Python class named

class should have the following components:

LibraryBook that simulates managing a library book. The

A parameterized constructor that initializes the title and author and

is$\_$checked$\_$out based on the arguments passed.

Checks out the book if it is not already checked out. If the

book is already checked out, raise a ValueError with the message $$Book

already checked out$$

Returns the book if it is checked out. If the book is not

checked out, raise a ValueError with the message $$Book not checked out.$$

$\_\_$str$\_\_()$: Returns a string that contains the book title, author, and check$-$

out status.

In the main method, create instances of this LibraryBook class, perform operations like

checking out and returning books, and handle any exceptions that arise.