[Xrystal]

That looks like visual studio code and they do have a wow api extension available.

I just installed the extension on my newly installed visual studio code ( for unity coding ) and it seems to work but it still seems to have some issues as it reported a few errors which as far as I know aren't a problem ( but I could be wrong ) . Ah .. the errors I am seeing is because it isn't fully set up yet .. ``

Last updated last week so quite recent. With the following known issues.

-- Frame templates are not completely supported, only BackdropTemplate (#15)
-- The Classic (TBC) API is not supported (#13)


** Rereads the post and realises you weren't asking for something like that screen but regarding the code inside *slaps head*