Query regarding update method and backtracking saturation in v2.8.2/v3

[Tianmeng818]

Dear Dr., Sorry to bother you, but in your "OpenPNM-Example/[Topology](https://github. com/mrokhfrooz/OpenPNM-Examples/tree/master/Topology)
The file "/generate_vorono_network.md" found the following code that would backtrack the saturation.

But I realized that this is 2016 code, and it doesn't use "return-result" in 2.8.2 and the latest v3 version, I guess it should use "update" instead, but nothing seems to have changed! I would like to be able to use "# Update the simulation until saturation is at 50%", is this still available in version 2.8.2 or v3? If so, is there a relevant example related to backtracking saturation that I can learn from?
Also, can you please tell me in which version the code on the picture is running, and how I should download this old version of openpnm, I would like to try to reproduce your code for these articles to learn.
I would like to implement water and gas intrusion into a pore network whose initial state is unsaturated, e.g. for 50% saturation.
I would appreciate if you can answer my queries in your busy schedule as this has really been bothering me for a long time.