It seems ok according to mypy like this and unit tests are passing as well, but I am not really sure about this though. As discussed here: https://github.com/apify/crawlee-python/pull/1086/files/a67d3b3b42d2a1d59923810fe6f17dabeea3e98b#r1995086090

there are some casts down the road when it comes to user data, which makes me unsure about type checking result.

The reason this is uncool is that crawlee puts its own stuff into user_data (more precisely user_data['__crawlee']), and this depends on it being a dictionary. Not sure if the platform would accept anything other than a dict, too...