BTW the oauth notebook was successfully used by cornhundred to do a google login for biometric dataset too. The main point of that notebook is to hide the client-secret, but given that endpoint doesn’t use a secret you can probably get it all working without that notebook in raw fetch… if you can figure out the server URL pattern. For that, monkey patching requests will get you required authoritative data.
If you get stuck I can help you in a call.