@abc.abstractmethod
    def __eq__(self, other):
        raise NotImplementedError
void cv.Sobel(src, dst, xorder, yorder, apertureSize = 3) 
dataset/ETHPy150Open adewes/blitzdb/blitzdb/queryset.py/QuerySet.__eq__--crossover with--dataset/ETHPy150Open bolme/pyvision/src/pyvision/edge/sobel.py/sobel