Q1. Create a class called VendingMachine that represents a vending machine for some product. A VendingMachine object doesn't actually return anything but strings describing its interactions. See the doctest below for examples.
class VendingMachine(object):
"""A vending machine that vends some product for some price.
>>> v = VendingMachine('crab', 10)
>>> v.vend()
'Machine is out of stock.'
>>> v.restock(2)
'Current crab stock: 2'
>>> v.vend()
'You must deposit $10 more.'
>>> v.deposit(7)
'Current balance: $7'
>>> v.vend()
'You must deposit $3 more.'
>>> v.deposit(5)
'Current balance: $12'
>>> v.vend()
'Here is your crab and $2 change.'
>>> v.deposit(10)
'Current balance: $10'
>>> v.vend()
'Here is your crab.'
>>> v.deposit(15)
'Machine is out of stock. Here is your $15.'
"""
"*** YOUR CODE HERE ***"
Q2. Complete one of the midterms attached above.