Description

We've previously been running v5.0.0-beta2. Switching to the full release v5.0.0 results in the error ModuleNotFoundError: No module named 'nulltype'.

The fix was to add the nulltype package to my project's requirements but I'm not sure if this is expected and it doesn't seem ideal. Is this package really required or was it an accidentally inclusion?

openapi-genera

Expected behaviour

The following code snippet:

    RestClient::Connection* conn = new RestClient::Connection("https://httpbin.org");
    RestClient::Response& r = conn->get("/get");
    for(auto& name : { "date", "Date" }) {
        try {
            std::string& value = r.headers.at(name);
            std::cout << name << ": \"" << value << "\"" << std::endl;
        } catch(st

It would be great to handle subgroups/subfolders as the following image: