human
Solve the following python programming problem given the following code:
@ mock.patch ('time.sleep') 
@ mock.patch ('google.appengine.api.taskqueue.Queue', autospec = True) 
def test_start_hits_transient_error(self, queue_mock, mock_sleep) : 
    'Ensure the task retries if a transient error is hit.' 
    from google.appengine.api.taskqueue import TransientError 
    from furious.async import Async 
    def add(task, * args, **kwargs) : 
        def add_second(task, * args, **kwargs) : 
            assert task 
queue_mock.return_value.add.side_effect = add_second 
        raise TransientError () 
queue_mock.return_value.add.side_effect = add 
    async_job = Async ('something', queue = 'my_queue') 
    async_job.start () 
    queue_mock.assert_called_with (name = 'my_queue') 
    self.assertEqual (2, queue_mock.return_value.add.call_count) 
    self.assertEqual (1, queue_mock.call_count) 

    
    

    Fix the buggy line: self.assertEqual (1, queue_mock.call_count)
assistant
#Here is Python program to fix the buggy line: self.

self.assertEqual (1, mock_sleep.call_count)