def __call__(self, value):
        if value is not None:
            value = str(value)
            if self.membership not in value:
                raise ValueError('Unrecognized value: %s' % value)
        return value
dataset/ETHPy150Open splunk/splunk-app-twitter/twitter2/bin/splunklib/searchcommands/validators.py/Set.__call__/swapped operands of `not in`