Is there a way to make a NPC that have a idle animation (from Roblox bundles)?

Hi! Today I've worked on a NPC that have a idle animation; specifically, Superhero Animation Pack. I tried to get the idle animation with game:GetService("AssetService") and GetAssetIdsForPackage (I don't know to use GetAssetIdsForPackage very well), it didn't work, maybe I did it wrong.

I think the code is something like this:

local assetService = game:GetService("AssetService")
assetService:GetAssetIdsForPackage(idk)

Correct me if I'm wrong, please!

Is there anyway to obtain the idle animation pack ID or can you say me another way you know to do that? Thanks!

Pretty sure you can modify the core animation script from roblox to be working on the server side in ncps by just removing useless parts