Function _queryable_attribute_unreduce

lib/sqlalchemy/orm/attributes.py:501–512

(
    key: str,
    mapped_class: Type[_O],
    parententity: _InternalEntityType[_O],
    entity: _ExternalEntityType[Any],
)

def _queryable_attribute_unreduce(
    key: str,
    mapped_class: Type[_O],
    parententity: _InternalEntityType[_O],
    entity: _ExternalEntityType[Any],
) -> Any:
    # this method is only used in terms of the
    # sqlalchemy.ext.serializer extension
    if insp_is_aliased_class(parententity):
        return entity._get_from_serialized(key, mapped_class, parententity)
    else:
        return getattr(entity, key)


class InstrumentedAttribute(QueryableAttribute[_T_co]):