Description of the issue

Hi all,

I'm building on the Ruby language's Http::Client::Request class, particularly NetHttpRequest. This is going well, except NetHttpRequest appears to be somewhat of an outlier compared to other client requests. There are two things: 1) its class fields are private instead of public, and 2) it only has a requestNode field and is lacking connectionNode.

For example:

So my question is, are NetHttpRequest class fields private for a reason, and if not would it be reasonable to make them public? And if so, would it also be reasonable to add a connectionNode field similar to FaradayHttpRequest, RestClientHttpRequest, and ExconHttpRequest?

I'm happy to open a PR with the changes myself - I just wanted to open an issue to track it first and check that there's not a reason for this discrepancy.