human
Solve the following python programming problem given the following code:
@ tornado.gen.coroutine 
def _test_extended_stats(self, extended = False) : 
    events = { 
        'extended_stats_called' : False, 
} 
    def hook(watcher, arbiter, hook_name, **kwargs) : 
        events ['extended_stats_called'] = True 
old = logger.exception 
    logger.exception = (lambda x : x) 
    hooks = { 
        'extended_stats' : (hook, False), 
} 
    (testfile, arbiter) = self.run_with_hooks (hooks) 
    (yield arbiter.start ()) 
    try : 
        if extended : 
            (yield self._extended_stats ()) 
else : 
            (yield self._stats ()) 
resp_status = (yield self.get_status ()) 
        self.assertEqual (resp_status, 'active') 
finally : 
        (yield arbiter.stop ()) 
        logger.exception = old 
self.assertEqual (events ['extended_stats_called'], hook) 

    
    

    Fix the buggy line: self.assertEqual (events ['extended_stats_called'], hook)
assistant
#Here is Python program to fix the buggy line: self.

self.assertEqual (events ['extended_stats_called'], extended)