HTTP API - Train Rasa - Binary output?

So, I finally managed to do a successful POST request and train rasa via the [HTTP API] (HTTP API). The process was really confusing due to the missing examples in the documentation.

In any way, the (200 OK) output is binary. Is there any way to handle the output more easily?

I think the endpoint responds with the trained model, is there an issue with that?

What can we change in the docs to make this easier to understand? Would be great if you can help us out there and let us know what exactly made it hard/confusing. If you like you can even contribute an improvement rasa/docs at master · RasaHQ/rasa · GitHub