NamePlate#.namePlateUnitToken
NamePlate#UnitFrame.unit
NamePlate#UnitFrame:GetAttribute("unit")

NamePlate#UnitFrame.BuffFrame.unit
NamePlate#UnitFrame.DebuffFrame.unit

function NamePlateDriverMixin:OnUnitAuraUpdate(unit)
    ...
    filter = "HARMFUL|INCLUDE_NAME_PLATE_ONLY"
    ...
end

filter = "HARMFUL|PLAYER"

local groups = {
  "Friendly",
  "Enemy",
}
 
for i, group  in next, groups do
  for key, value in next, _G["DefaultCompactNamePlate"..group.."FrameOptions"] do
    print(group, key,value)
  end
end

local function OnNamePlateCreated(args1, frame)
  print("==================")
  print("OnNamePlateCreated", frame)
  for key, value in next, frame do
    print(key,value)
  end
  print("------------------")
  print("printint nameplate.UnitFrame keys:")
  for key, value in next, frame.UnitFrame do
    print(key,value)
  end
end
 
rLib:RegisterCallback("NAME_PLATE_CREATED", OnNamePlateCreated)

print("==================")
print("NamePlateDriverFrame")
for key, value in next, NamePlateDriverFrame do
  print(key,value)
end

hooksecurefunc(NamePlateDriverFrame, "OnUnitAuraUpdate", function(self, unit)
    local filter;
    if UnitIsUnit("player", unit) then
        filter = "HELPFUL|INCLUDE_NAME_PLATE_ONLY";
    else
        local reaction = UnitReaction("player", unit);
        if reaction and reaction <= 4 then
            -- Reaction 4 is neutral and less than 4 becomes increasingly more hostile
            filter = "HARMFUL|PLAYER";
        else
            filter = "NONE";
        end
    end
 
    local nameplate = C_NamePlate.GetNamePlateForUnit(unit);
    if (nameplate) then
        nameplate.UnitFrame.BuffFrame:UpdateBuffs(nameplate.namePlateUnitToken, filter);
    end
 
    -- debug
    local name, rank, texture, count, debuffType, duration, expirationTime, caster, _, nameplateShowPersonal, spellId, _, _, _, nameplateShowAll = UnitAura(nameplate.namePlateUnitToken, 1, filter)
    if nameplateShowPersonal ~= nil then -- still want boolean false
        print(nameplate.namePlateUnitToken, filter, name, caster, nameplateShowAll, nameplateShowPersonal, (nameplateShowPersonal and (caster == "player" or caster == "pet" or caster == "vehicle")))
    end
end)