That was old...it was Gimp 1.1 and just proof of concept.
For a much more recent attempt see:
https://gimplearn.net/viewtopic.php?t=287
and might be worth asking the author to develop it more.
For a much more recent attempt see:
https://gimplearn.net/viewtopic.php?t=287
and might be worth asking the author to develop it more.