class Customer:        """        A simple class that represents a customer at the bank.        """            def __init__(self, name, ssn):            if type(name) is not str or len(name) < 2:                raise AttributeError("Invalid name for the account.")                        if type(ssn) is not str or not ssn.isnumeric():                raise AttributeError("Invalid SSN for the account.")                self.name = name            self.ssn = ssn

Class diagram Customer o name: str ssn: str name: str o balance: property [float] accounts: list or dict create_account(customer: Customer, category: str): Account o find_accounts_by_name(name: str): Account[] o find_accounts_by_ssn(ssn: str): Account[] amount: float o owner: Customer withdraw(value: float): None o deposit(value: float): None Account CreditAccount Bank transfer(account: Account, value: float): None compute_interest(): None interest: float compute_interest(): None (C) SavingsAccount o amount: property [float]