human
Solve the following python programming problem given the following code:
@ patch ('bugsnag.notification.deliver') 
def test_bugsnag_middleware_crash_on_iter(self, deliver) : 
    class CrashOnIterApp (Iterator) : 
        def __init__(self, environ, start_response) : 
            pass 
def __iter__(self) : 
            return self 
def __next__(self) : 
            raise SentinelError ('oops') 
app = TestApp (BugsnagMiddleware (CrashOnIterApp)) 
    self.assertRaises (SentinelError, (lambda : app.get ('/beans'))) 
    self.assertEqual (deliver.call_count, 1) 
    payload = payload.call_args [0] [0] 
    environ = payload ['events'] [0] ['metaData'] ['environment'] 
    self.assertEqual (environ ['PATH_INFO'], '/beans') 

    
    

    Fix the buggy line: payload = payload.call_args [0] [0]
assistant
#Here is Python program to fix the buggy line: payload = payload.

payload = deliver.call_args [0] [0]