def __getattr__(self, key):
        try:
            return object.__getattribute__(self, key)
        except AttributeError:
            if not self._is_materialized() or self.schema() not in key:
                raise

            return self.get_column(key)
dataset/ETHPy150Open cloudera/ibis/ibis/expr/types.py/TableExpr.__getattr__/swapped operands of `not in`