@property
    def is_unspecified(self):
        return self._ip == 0 and getattr(self, '_prefixlen', 128) == 128
Return a thumbnail filename for the given ``thumbnail_options``
dataset/ETHPy150Open uwdata/termite-data-server/web2py/gluon/contrib/ipaddr.py/_BaseV6.is_unspecified--crossover with--dataset/ETHPy150Open SmileyChris/easy-thumbnails/easy_thumbnails/files.py/Thumbnailer.get_thumbnail_name