Question: Add a private variable _ _ discount ( float ) in the Book class with a default value of 0 . 1 . Write a

Add a private variable __discount (float) in the Book class with a default value of 0.1.
Write a public method get_discount that returns the value of __discount.
Write another method set_discount to update the discount value (with input validation ensuring it is between 0 and 0.5).(python program)

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