def _fill_argtypes(self):
        for i, ary in enumerate(self.arrays):
            if ary is not None:
                self.argtypes[i] = ary.dtype
Test the permutation works on a list of length 2
dataset/ETHPy150Open numba/numba/numba/npyufunc/deviceufunc.py/UFuncMechanism._fill_argtypes--crossover with--dataset/ETHPy150Open CountZer0/PipelineConstructionSet/python/maya/site-packages/pymel-1.0.3/tests/test_testingutils.py/TestPermutations.test2ElementList