How to use the SDK to write Graph calls that aren't provided by the SDK API

Ahoi,

first, thanks for the SDK. It makes life easier and helps me to stay in the python eco-system for such tasks.
Now, I'm not really understanding Graph or the SDK well enough to see how I could write my own queries.
For example, I'd like to call the reports/getTeamsTeamActivityDetail(period='D90')?$format=application/json endpoint. As I don't see it in SDK 1.0.0a12, I'd like to "manually" call it and process the results.

Is this even feasable? Please excuse me if this call actually is in the API and I just didn't see it - take it as an example.

Is calling arbitrary endpoints even supported? Did I miss this when reading in README / Samples?

Commencez par examiner le README et les Samples mentionnés dans l’issue, puis vérifiez comment le Python SDK expose les requêtes vers les endpoints Graph. Le travail sera considéré comme terminé lorsqu’il documentera si les endpoints arbitraires sont pris en charge et montrera comment appeler et traiter un endpoint tel que reports/getTeamsTeamActivityDetail lorsqu’il n’est pas représenté par la SDK API.