function()
    local health = UnitHealth("target")
    local abbr = ""
    if health >= 10000 then
        health = health / 1000
        abbr = "k"
    end
    if health >= 10000 then
        health = health / 1000
        abbr = "m"
    end

    return ("%.0f%s"):format(health, abbr)
end