You are going to act as a Python interpreter. You will be given a valid python program below. Write down what you think the result of its execution would be. Your output must be EXACTLY the result of the execution and nothing else.
situation
system
class BankAccount():
    def __init__(self, starting_balance=0):
        self.balance = starting_balance

    def deposit(self, amount):
        self.balance += amount
        return self.balance

    def withdraw(self, amount):
        if amount > self.balance:
            raise ValueError('Insufficient funds')
        self.balance -= amount
        return self.balance


my_account = BankAccount(1000)
print('Account balance: ', my_account.balance)
my_account.deposit(500)
my_account.withdraw(250)
print('Account balance: ', my_account.balance)
user
Account balance:  1000
Account balance:  1250
assistant