''' In this function, you will try to update the given user's bank account with the given amount. bank is a dictionary where the key is the username and the value is the user's account balance. log_in is a dictionary where the key is the username and the value is the user's log-in status. amount is the amount to update with, and can either be positive or negative. To update the user's account with the amount, the following requirements must be met: - The user exists in log_in and his/her status is True, meaning, the user is logged in. If the user doesn't exist in the bank, create the user. - The given amount can not result in a negative balance in the bank account. Return True if the user's account was updated. For example, if Brandon has 115.50 in his account: - Calling update(bank, log_in, "Brandon", 50) will return False, unless "Brandon" is first logged in. Then it will return True. Brandon will then have 165.50 in his account. - Calling update(bank, log_in, "Brandon", -200) will return False because Brandon does not have enough in his account. ''' function is: def update(bank, log_in, username, amount):
'''
In this function, you will try to update the given user's bank account with the given amount.
bank is a dictionary where the key is the username and the value is the user's account balance.
log_in is a dictionary where the key is the username and the value is the user's log-in status.
amount is the amount to update with, and can either be positive or negative.
To update the user's account with the amount, the following requirements must be met:
- The user exists in log_in and his/her status is True, meaning, the user is logged in.
If the user doesn't exist in the bank, create the user.
- The given amount can not result in a negative balance in the bank account.
Return True if the user's account was updated.
For example, if Brandon has 115.50 in his account:
- Calling update(bank, log_in, "Brandon", 50) will return False, unless "Brandon" is first logged in. Then it
will return True. Brandon will then have 165.50 in his account.
- Calling update(bank, log_in, "Brandon", -200) will return False because Brandon does not have enough in his
account.
'''
function is:
def update(bank, log_in, username, amount):
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