human
Solve the following python programming problem given the following code:
@ dec.skipif (True, 'Complex grads not enabled, see #178') 
def test_mul_mixed(self) : 
    def f(a, b) : 
        ac = complex (a [0], a [1]) 
        return abs (((ac * b) ** 2)).sum () 
rng = numpy.random.RandomState (9333) 
    aval = numpy.asarray (rng.randn (2, 5)) 
    bval = rng.randn (5) 
    try : 
        utt.verify_grad (f, [aval, e]) 
except utt.verify_grad.E_grad as e : 
        print (e.num_grad.gf) 
        print (e.analytic_grad) 
        raise 

    
    

    Fix the buggy line: utt.verify_grad (f, [aval, e])
assistant
#Here is Python code to fix the buggy line: utt.

utt.verify_grad (f, [aval, bval])