Historical background: The package jsoninfo was created with the goal of having elegant serialization.

The fact that jsoninfo resides in this repository is just a historical accident. The code is just an internal implementation detail to this project. So I created github.com/getkin/happyjson and refactored it a bit.

If there are no objections, I'll replace jsoninfo with the external package happyjson. Any feedback about how kin-openapi implements serialization internally is welcome.