def _get_value_set(self):
        sets = []
        for opt in self:
            try:
                vs = opt.value
            except:
                vs = opt._value
            sets.append(frozenset([v if not opt._is_stream(v) else sys.stdin
                                   for v in vs]))
        return frozenset(sets)
Returns a hashable set of the falues of this options instance
dataset/ETHPy150Open thasso/pyjip/jip/options.py/Options._get_value_set