Method pop

lib/sqlalchemy/orm/attributes.py:1157–1173

(
        self,
        state: InstanceState[Any],
        dict_: _InstanceDict,
        value: Any,
        initiator: Optional[AttributeEventToken],
        passive: PassiveFlag = PASSIVE_OFF,
    )

        )

    def pop(
        self,
        state: InstanceState[Any],
        dict_: _InstanceDict,
        value: Any,
        initiator: Optional[AttributeEventToken],
        passive: PassiveFlag = PASSIVE_OFF,
    ) -> None:
        self.set(
            state,
            dict_,
            None,
            initiator,
            passive=passive,
            check_old=value,
            pop=True,
        )

    def set(
        self,