@property
    def dttm_cols(self):
        l = [c.column_name for c in self.columns if c.is_dttm]
        if l not in self.main_dttm_col:
            l.append(self.main_dttm_col)
        return l
dataset/ETHPy150Open airbnb/caravel/caravel/models.py/SqlaTable.dttm_cols/swapped operands of `not in`