Is your feature request related to a problem? Please describe.

UNIT_AURA grants you AuraInstanceID updates, but in order to use those combined with the TSU Tooltip docs, you'd need a separate loop over currently present auras to find the aura index.

GameTooltip:SetUnitBuffByAuraInstanceID and GameTooltip:SetUnitDebuffByAuraInstanceID are available, but currently aren't used in GenericTrigger.SetTooltip

Describe the solution you'd like
Being able to leverage those similarily to unitBuffIndex , unitDebuffIndex and unitAuraIndex, introducing unitDebuffAuraInstanceID and unitBuffAuraInstanceID as per TSU Tooltip docs.