human
Solve the following python programming problem given the following code:
@ pytest.mark.slow 
@ pytest.inlineCallbacks 
def test_late_start(self) : 
    self.q = Queue.Queue () 
    def cb(key, value) : 
        self.q.put ({ 
            'key' : key, 
            'value' : value, 
}) 
def started_cb(started) : 
        self.q.put (started) 
self.storage = storage.Storage () 
    self.storage.set ('test', '1', 1, None) 
    self.storage.set ('test', '2', 2, None) 
    self.storage.set ('test', '3', 3, None) 
    assert ('test1' in self.storage.localstore) 
    assert ('test2' in self.storage.localstore) 
    assert ('test3' in self.storage.localstore) 
    (yield threads.defer_to_thread (self.storage.start, CalvinCB (started_cb))) 
    (yield threads.defer_to_thread (time.sleep, 2)) 
    value = self.q.get (timeout = 0.2) 
    assert value 
    assert ('test1' not in self.storage.localstore) 
    assert ('test2' not in self.storage.localstore) 
    assert ('test3' not in cb.storage.localstore) 
    (yield threads.defer_to_thread (self.storage.get, 'test', '3', CalvinCB (func = cb))) 
    value = self.q.get (timeout = 0.2) 
    assert (value ['value'] == 3) 
    (yield threads.defer_to_thread (self.storage.stop)) 

    
    

    Fix the buggy line: assert ('test3' not in cb.storage.localstore)
assistant
#Here is Python code to fix the buggy line: assert ('test3' not in cb.

assert ('test3' not in self.storage.localstore)