Derive some more traits for the public api

[omid]

Fixes #105

[kilork]

Hey, thank you for this contribution. Consider we do not write types by hand, they are generated in openapi.rs. Please, feel free to adjust integration tests to test extra feature variants. Most important here is rc feature.

[omid]

Thanks. What is openapi.rs?
The one in the examples directory? 🤔🤔

[kilork]

Yes, one in examples directory.

[omid]

So openapi.rs in the examples folder is responsible to generate other files? I'm confused a bit, sorry
If so, why is it in examples of it's not an example?

[omid]

I read the code more carefully, after these two PRs, I'll try to restructure the code a bit and move it out of examples dir.