What is `objIn` supporting?

https://github.com/CenterForDigitalHumanities/TinyNode/blob/2cca2506ec1d0aef47c5057577c8e14113a54d1d/public/scripts/api.js#L192C32-L192C37

Why is this here? The format is messy, but I can't see what is trying to happen anyway. It has the same `obj` issues in #56 but that's after this is managed.