Blender FACE IT ARKit shapes

Hi there,

How to export mesh with ARKit shape keys to A2F, to use it to generate animation?
I still need to make mesh fitting or how it works? I have ARKit shapes from FaceIt plugin for Blender. I don’t want to generate them in A2F.

How to work with A2F with FACE IT plugin? Anyone got it to work, without all the hassle with actual workflow?