Can you use Miis in an Unreal Engine Game?

I’m interested in creating a party game using Unreal Engine, and I’m currently working through a course to learn how to make games in Unreal Engine. I was curious if, since you can make Nintendo Switch games in Unreal Engine, could you use the Mii characters in an Unreal Engine game? I think that if I were to ship a Nintendo Switch version it would make more sense to allow people to use their Miis than to force them to create new characters, but I don’t know how doable that is. If anyone has experience developing for Nintendo Switch on Unreal Engine I’d be interested to hear about what you do have access to in terms of specific features, within any signed agreements of course.

Thanks in advance,