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→ WoW API
Expands a header, showing all spells below it.
Expands all trainer headers.
local i, category; for i=1,GetNumTrainerServices() do _ , _, category = GetTrainerServiceInfo(i); if (category == nil) then break; -- GetNumTrainerServices() does not check if you're talking to a trainer or not. end if (category == "header") then ExpandTrainerSkillLine(i); end end