How to programmatically access font style on UILabel?

Hi, In an iOS app, I have a Storyboard View Controller with a UILabel on it where I set the font style to Body/Heading/whatever with dynamic fonts.

This all works fine. However, is there a way in the VC code to extract that font style? I've looked at the associated font and font descriptor for the UILabel but don't see an obvious attribute for it. Any idea how to see it?

I would prefer not to hardcode it and extract it from the UILabel instead. I need it as I will be modifying portions of the text (bold, etc.). Regards, Patrick