AR facial features class for existing IOS app

I need an objective-c class that i can drop in my existing app that does something similar to this

https://apps.apple.com/us/app/mrrmrr-face-app-face-filters/id1102411061

must work for IOS 12.5.5 target 10.15 for iPhone/iPad with XCODE.

Maybe use library from www.DeepAR.ai