Follow the accounts wich a user is follows

So im very new to this and python in general. I wanted to ask if someone could explain how i can get the oposite effect of the

session.follow_user_followers(['user1', 'user2', 'user3'], amount=800,
randomize=False, interact=False)

in other words i want to follow the people who these useres are following

Start with the session.follow_user_followers(...) call shown in the issue and inspect the available InstaPy session methods for the requested inverse relationship. Done means identifying a supported way to follow accounts followed by the listed users, or documenting that no such operation exists.

Vom Indexierungsmodell aus dem Issue-Text verfasst.