A Dexterity-based content type may have its schema fields defined in a multitude of ways. Looking at the FTI, I count at least five different sources that should be checked.
So, by final, full schema I mean the final schema outcome, regardless of how it has been defined and where.
Are there any helpers or utility methods or functions somewhere that would help in this? I would think at some point in the Dexterity content instantiation process there has to be a list of schema fields that has been constructed from all the various possible sources. But I have no good idea where to look for?
Introspecting an already created content item somewhere on the site is not an option.