def _fill_argtypes(self):
        """
        Get dtypes
        """
        for i, ary in enumerate(self.arrays):
            if ary is not None:
                self.argtypes[i] = ary.dtype
dataset/ETHPy150Open numba/numba/numba/npyufunc/deviceufunc.py/UFuncMechanism._fill_argtypes/original