Can someone explain what the "q" param of resolveObject looks like?

https://lemmy.world/post/242737

Can someone explain what the "q" param of resolveObject looks like? - Lemmy.world

Regarding https://join-lemmy.org/api/classes/LemmyHttp.html#resolveObject [https://join-lemmy.org/api/classes/LemmyHttp.html#resolveObject] Thanks in advance!