Converting anim curve to metadata?

What does happen when I convert an anim curve to metadata and how can I access it?

It seems that a metadata curve is actually just a curve set to 1. So it’s not really a curve to speak off. it’s just an easier way to have a default value of 1 rather than 0 on your animations.

This is from: Animation Curves in Unreal Engine | Unreal Engine 5.2 Documentation