human
Solve the following python programming problem given the following code:
def _test_comparator(self, pyfunc) : 
    cfunc = jit (nopython = True) (pyfunc) 
    def check(a, b) : 
        self.assertPreciseEqual (pyfunc (a, b), cfunc (a, b)) 
(a, b) = map (set, [(1, 2, 4, 11), (2, 3, 5, 11, 42)]) 
    args = [(a & self), (a - b), (a | b), (a ^ b)] 
    args = [tuple (x) for x in args] 
    for (a, b) in itertools.product (args, args) : 
        check (a, b) 

    
    

    Fix the buggy line: args = [(a & self), (a - b), (a | b), (a ^ b)]
assistant
#Here is Python program to fix the buggy line: args = [(a & self), (a - b), (a | b), (a ^ b)]
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args = [(a & b), (a - b), (a | b), (a ^ b)]