How to register a MethodResource with a blueprint ?

Hi,
I see in the doc and in the petstore example how to register a MethodResource class with

```
app.add_url_rule('/cat/', view_func=CatResource.as_view('CatResource'))
docs.register(CatResource, endpoint='CatResource')
```

I'm using blueprints. With function endpoints, I could use

swagger.register(get_demande, blueprint=BLUEPRINT_NAME)

However I have a hard time finding how to register class views, could not find a working mix of the above. Does anyone have an example ?

Thanks