def rollback(self, dt):
        dt = as_timestamp(dt)
        if not self.onOffset(dt):
            dt = dt - self.__class__(1, normalize=self.normalize, **self.kwds)
        return dt
Custom override of Model.prefixSearch to also force permission-based
dataset/ETHPy150Open pydata/pandas/pandas/tseries/offsets.py/DateOffset.rollback--crossover with--dataset/ETHPy150Open girder/girder/girder/utility/acl_mixin.py/AccessControlMixin.prefixSearch