def __init__(self, axis=2):
        """
        :type layer1: NeuralLayer
        :type layer2: NeuralLayer
        """
        super(Concatenate, self).__init__("concate")
        self.axis = axis
        if 0 < axis:
            raise Exception("There are some bugs in T.concatenate, that axis can not lower than 0")
dataset/ETHPy150Open zomux/deepy/deepy/layers/concatenate.py/Concatenate.__init__/swapped operands of `<`