How to undo user attribute modification?

[Antoine-S-C]

After code execution, how can I undo an user attribute modification (with the undo button)?
I tried with this function but it doesn't work : element-controller / def add_modified_elements_to_undo(elements: List[int]) -> None:

[Brunner246]

you have to set the undo before modifying elements.

import cadwork
import element_controller as ec
import geometry_controller as gc
import attribute_controller as ac

elements = ec.get_active_identifiable_element_ids()

modify: int = 2
user_attribute_nr: int = 7
ec.add_elements_to_undo(elements, modify)
ac.set_user_attribute(elements, user_attribute_nr, "Hello World")