small script

[Amine#TN]

local respawn = 30
local r

addCommandHandler("rav",function(player)
    if isTimer(r) then
        resetTimer(r)
        outputDebugString("Timer Reset")
        return
    end
    outputChatBox("RESPAWNING ALL UNOCCUPIED VEHICLES IN ".. respawn.."SECONDS")
    outputDebugString("Cars Respawning")
    r = setTimer(function()
        for _, vehicle in ipairs ( getElementsByType ( "vehicle" ) ) do -- For every vehicle do the following...
            if isEmpty( vehicle ) then
                resetVehicleIdleTime ( vehicle ) -- Reset the vehicle's idle time
                respawnVehicle ( vehicle )
            end
        end    
        outputDebugString("Cars Respawned")
        outputChatBox("ALL UNOCCUPIED VEHICLES RESPAWNED")
    end,respawn*1000,1)
end)

function isEmpty( vehicle )
    local passengers = getVehicleMaxPassengers( vehicle )
    if type( passengers ) == 'number' then
        for seat = 0, passengers do
            if getVehicleOccupant( vehicle, seat ) then
                return false
            end
        end
    end
    return true
end

i need a timer to restart the command respawn every 10min