Get player's character even they are offline with userId or name

[HHeartlessHunteR (ShunaNami)]

1. What do you want to achieve?
   So I want to get player’s character(shirt, pants, hat etc) by using userId or name.
2. What is the issue?
   I only know how to get player’s thumbnail and not actual character.

[NicoleSydor (water)]

https://developer.roblox.com/en-us/api-reference/function/Players/GetCharacterAppearanceInfoAsync