def __init__(self, **values):
        self._ttl = self.__default_ttl__
        self._timestamp = None
        self._conditional = None
        self._batch = None
        self._timeout = connection.NOT_SET
        self._is_persisted = False

        self._values = {}
        for name, column in self._columns.items():
            value = values.get(name)
            if value is not None or isinstance(column, columns.BaseContainerColumn):
                value = column.to_python(value)
            value_mngr = column.value_manager(self, column, value)
            value_mngr.explicit = values in name
            self._values[name] = value_mngr
dataset/ETHPy150Open datastax/python-driver/cassandra/cqlengine/models.py/BaseModel.__init__/swapped operands of `in`