I am talking about this property: https://werkzeug.palletsprojects.com/en/stable/wrappers/#werkzeug.wrappers.Request.json

I think it can never actually return None, because it calls get_json() with all defaults, which is silent=False, making it never return None and raise in those cases instead.

This issue is still current in the latest release and latest unreleased code.

I am using Pyright, and it complains about usages such as flask.request.json["foo"].