def _is_empty_array(self, shape):
        return any(x == 0 for x in shape)
:param step: the number of IP subnets between this `IPNetwork` object
dataset/ETHPy150Open pydata/pandas/pandas/io/pytables.py/GenericFixed._is_empty_array--crossover with--dataset/ETHPy150Open drkjam/netaddr/netaddr/ip/__init__.py/IPNetwork.previous