human
Solve the following python programming problem given the following code:
def test_max_delay(monkeypatch) : 
    mock_sleep_time = [0] 
    def mock_sleep(seconds) : 
        mock_sleep_time [0] += seconds 
monkeypatch.setattr (time, 'sleep', mock_sleep) 
    hit = [0] 
    tries = 5 
    delay = 1 
    backoff = 2 
    max_delay = delay 
    @ retry (tries = tries, delay = delay, max_delay = max_delay, backoff = backoff) 
    def f() : 
        hit [0] += 1 
        (1 / 0) 
with pytest.raises (ZeroDivisionError) : 
        f () 
assert (hit [0] == tries) 
    assert (mock_sleep_time [0] == (delay * (hit - 1))) 

    
    

    Fix the buggy line: assert (mock_sleep_time [0] == (delay * (hit - 1)))
assistant
#Here is Python program to fix the buggy line: assert (mock_sleep_time [0] == (delay * (hit - 1)))
.

assert (mock_sleep_time [0] == (delay * (tries - 1)))