Please answer question 8.20

Python 3.0 for language

Comment for each part of line of code explaining what is being done

8.20 Develop a class BankAccount that supports these methods: '-init.-O: Initializes the bank account balance to the value of the input argument, or to 0 if no input argument is givern withdrax (): Takes an amount as input and withdraws it from the balance deposit): Takes an amount as input and adds it to the balance balance(): Returns the balance on the account >>>BankAccount (700) >>> x.balance ) 700.00 >>> x.withdraw(70) >>>x.balance ) 630.00 >>x.deposit(7) >>> x.balance() 637.00