human
Solve the following python programming problem given the following code:
def testLimitView(self) : 
    cb = self.make_connection () 
    d = cb.queryAll ('beer', 'brewery_beers', limit = 10) 
    def _verify(o) : 
        self.assertIsInstance (o, BatchedView) 
        rows = list (o) 
        self.assertEqual (len (rows), 10) 
return d.addCallback (cb) 

    
    

    Fix the buggy line: return d.addCallback (cb)
assistant
#Here is Python code to fix the buggy line: return d.

return d.addCallback (def _verify()