This will print in chat the number of any active cooldowns.
I used this for my spell caster to get all the IDs of unknown spells on custom servers such as Evolunia

hotkey("F1", "Cooldown print", function()
    local tStr = {}
    for i = 1, 255 do
        if (modules.game_cooldown.isCooldownIconActive(i)) then
            table.insert(tStr, i)
        end
    end

    if table.getn(tStr) >=1 then
        modules.game_textmessage.displayGameMessage('Active Cooldowns:\n'..table.concat(tStr, ', '))
    else
        modules.game_textmessage.displayGameMessage('No active cooldowns')
    end
end)