human
Solve the following python programming problem given the following code:
def test_1() : 
    channel = ('test_1-' + str (time.time ())) 
    message = 'I am a string' 
    def _cb(resp, ch = None) : 
        assert (resp == message) 
        pubnub.unsubscribe (channel) 
def _connect(resp) : 
        def _cb1(resp, ch = None) : 
            assert (resp [0] == 1) 
def _err1(resp) : 
            assert False 
pubnub.publish (channel, message, callback = _cb1, error = _err1) 
def _error(resp) : 
        assert False 
pubnub.subscribe (channel, callback = _cb, connect = _error, error = _error) 

    
    

    Fix the buggy line: pubnub.subscribe (channel, callback = _cb, connect = _error, error = _error)
assistant
#Here is Python code to fix the buggy line: pubnub.

pubnub.subscribe (channel, callback = _cb, connect = def _connect(, error = _error)