class BankAccount:
    def __init__(self, initial_balance: float) -> None:
        # Guarda el saldo inicial en un atributo de instancia
        self.balance = initial_balance


    def deposit(self, amount: float) -> None:
        # Suma el monto al saldo
        self.balance += amount

    def withdraw(self, amount: float) -> None:
        # Resta el monto solo si hay saldo suficiente
        if self.balance >= amount:
            self.balance -= amount
        

def test_bank_account(initial: float, deposit_amount: float, withdraw_amount: float) -> float:
    # Crea una cuenta, realiza el depósito y el retiro, retorna el saldo final
    account = BankAccount(initial)
    account.deposit(deposit_amount)
    account.withdraw(withdraw_amount)
    return account.balance