Is there a way to check Achievements for use in code?

[JaguraSW77]

I found the code function AddAchievement https://geckwiki.com/index.php?title=AddAchievement and I was wondering if there was a way to check Achievements. I have a trait I would like to only be playable after the game has been completed once, Like a new game + mode.

If not, can some bright programmer figure out a way to add it to NVSE or some such.

CheckAchievement 38

Would return true if you completed 38 All or Nothing getting the achievement on steam or other platform that follows achievements.

38    All or Nothing
40    Eureka!
39    Veni, Vidi, Vici
41    No Gods, No Masters