def empty(self):

        return not bool(
            (self.added or self.deleted)
            or self.unchanged
        )
Setup conversion alpha.
dataset/ETHPy150Open RoseOu/flasky/venv/lib/python2.7/site-packages/sqlalchemy/orm/attributes.py/History.empty--crossover with--dataset/ETHPy150Open facelessuser/ColorHelper/color_helper_insert.py/InsertCalc.convert_alpha