human
Solve the following python programming problem given the following code:
@ given (device = device_path) 
def test_unexpected_attach_exception(self, device) : 
    '
        If the ``attach_volume`` function raises an unexpected exception, it is
        passed through.
        ' 
    def attach_volume(blockdevice_id, compute_id, device) : 
        raise CustomException ('Fake failure generated by test') 
self.assertRaises (CustomException, _attach_volume_and_wait_for_device, volume = self.volume, attach_to = attach_volume.compute_id, attach_volume = attach_volume, detach_volume = (lambda * a, **kw : None), device = device, blockdevices = []) 

    
    

    Fix the buggy line: self.assertRaises (CustomException, _attach_volume_and_wait_for_device, volume = self.volume, attach_to = attach_volume.compute_id, attach_volume = attach_volume, detach_volume = (lambda * a, **kw : None), device = device, blockdevices = [])
assistant
#Here is Python code to fix the buggy line: self.

self.assertRaises (CustomException, _attach_volume_and_wait_for_device, volume = self.volume, attach_to = self.compute_id, attach_volume = attach_volume, detach_volume = (lambda * a, **kw : None), device = device, blockdevices = [])