Method append

lib/sqlalchemy/orm/attributes.py:1130–1138

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

            return ATTR_EMPTY

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

    def remove(
        self,