def __ne__(self, other):
        try:
            return self._cidrs != other._cidrs
        except AttributeError:
            return NotImplemented
Adds a (name, value) pair, doesn't overwrite the value if it already
dataset/ETHPy150Open drkjam/netaddr/netaddr/ip/sets.py/IPSet.__ne__--crossover with--dataset/ETHPy150Open sigmavirus24/betamax/betamax/headers.py/HTTPHeaderDict.add