[Proposal] don't repeat `cfg`

[VladimirFokow]

Proposal

https://github.com/NVIDIA-Omniverse/orbit/blob/83d62e212dde22ebc80f140388417fbca12229ed/docs/source/tutorials/00_sim/spawn_prims.rst?plain=1#L67-L68

Repeating the cfg inside of the brackets goes against the DRY principle

cfg is already the object that's calling func -> so func can automatically know about it - no need to make the user repeat it.

(If there's no better way, e.g. larger code redesign), it can be done if func is not an attribute but a method - using self.

Motivation

Better API design.

Checklist

• [x] I have checked that there is no similar issue in the repo (required)

Acceptance Criteria

Either:

• [ ] fixed
• [ ] argumented why it should remain this way in the docs

[VladimirFokow]

plus, the func isn't really a descriptive method name. Maybe spawn would be better?

Maybe, spawn method can be defined with this new interface, while func is marked deprecated (to maintain backwards compatibility for some time).