I got files on Shared drive in Google. Also I created service account and add it as Shared drive member. In that case its permission should propagate to every folder on every files. But when I try to go through the file structure by python I can see only some of the files (probably those which weren't edited by another user). When I try add the service account on all files in any folder manually via web browser, then all of them appear via Google API as well.
So how can I propagate permissions to every file in folder? And yes, I tried to wait 24h for propagation :(