[IndependentGaming]

Hello, I have added something from another script but I got errors

Код:

./includes/functions.pwn(17710) : error 017: undefined symbol "GetGVarInt"
./includes/functions.pwn(17712) : error 017: undefined symbol "GetGVarInt"
./includes/functions.pwn(17713) : error 017: undefined symbol "DeleteGVar"
./includes/functions.pwn(17715) : error 017: undefined symbol "GetGVarInt"
./includes/functions.pwn(17717) : error 017: undefined symbol "GetGVarInt"
./includes/functions.pwn(17718) : error 017: undefined symbol "DeleteGVar"
./includes/functions.pwn(17729) : error 017: undefined symbol "SetGVarInt"
./includes/functions.pwn(17735) : error 017: undefined symbol "SetGVarInt"
./includes/functions.pwn(17741) : error 017: undefined symbol "SetGVarInt"
./includes/functions.pwn(17747) : error 017: undefined symbol "SetGVarInt"
./includes/functions.pwn(17755) : error 017: undefined symbol "SetGVarInt"
./includes/functions.pwn(17756) : error 017: undefined symbol "SetGVarInt"
./includes/functions.pwn(17762) : error 017: undefined symbol "SetGVarInt"

about this:

PHP код:

stock ToggleSiren(vehid, iTogState)
{
    if(iTogState == 1)
    {
        if(GetGVarInt("VehSiren", vehid) != INVALID_OBJECT_ID)
        {
            DestroyDynamicObject(GetGVarInt("VehSiren", vehid));
            DeleteGVar("VehSiren", vehid);
        }
        if(GetGVarInt("VehSiren2", vehid) != INVALID_OBJECT_ID)
        {
            DestroyDynamicObject(GetGVarInt("VehSiren2", vehid));
            DeleteGVar("VehSiren2", vehid);
        }
    }
    else
    {
        switch(GetVehicleModel(vehid))
        {
            case 402:
            {
                new iTempObj = CreateDynamicObject(18646, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, -1, -1, -1, 200.0);
                AttachDynamicObjectToVehicle(iTempObj, vehid, -0.20, 0.5, 0.4, 0.0, 0.0, 0.0);
                SetGVarInt("VehSiren", iTempObj, vehid);
            }
            case 411, 541:
            {
                new iTempObj = CreateDynamicObject(18646, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, -1, -1, -1, 200.0);
                AttachDynamicObjectToVehicle(iTempObj, vehid, 0.0, 0.2, 0.4, 0.0, 0.0, 0.0);
                SetGVarInt("VehSiren", iTempObj, vehid);
            }
            case 415:
            {
                new iTempObj = CreateDynamicObject(18646, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, -1, -1, -1, 200.0);
                AttachDynamicObjectToVehicle(iTempObj, vehid, -0.20, 0.30, 0.3, 0.0, 0.0, 0.0);
                SetGVarInt("VehSiren", iTempObj, vehid);
            }
            case 451:
            {
                new iTempObj = CreateDynamicObject(18646, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, -1, -1, -1, 200.0);
                AttachDynamicObjectToVehicle(iTempObj, vehid, -0.30, 0.4, 0.6, 0.0, 0.0, 0.0);
                SetGVarInt("VehSiren", iTempObj, vehid);
            }
            case 525:
            {
                new iTempObj2 = CreateDynamicObject(19294, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, -1, -1, -1, 200.0);
                new iTempObj3 = CreateDynamicObject(19294, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, -1, -1, -1, 200.0);
                AttachDynamicObjectToVehicle(iTempObj2, vehid, 0.55, -0.5, 1.5, 0.0, 0.0, 0.0);
                AttachDynamicObjectToVehicle(iTempObj3, vehid, -0.55, -0.5, 1.5, 0.0, 0.0, 0.0);
                SetGVarInt("VehSiren", iTempObj2, vehid);
                SetGVarInt("VehSiren2", iTempObj3, vehid);
            }
            default:
            {
                new iTempObj = CreateDynamicObject(18646, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, -1, -1, -1, 200.0);
                AttachDynamicObjectToVehicle(iTempObj, vehid, -0.30, 0.4, 0.4, 0.0, 0.0, 0.0);
                SetGVarInt("VehSiren", iTempObj, vehid);
            }
        }
    }
    return 1;
}
hook OnVehicleSpawn(vehicleid)
{
    if(GetGVarType("VehSiren", vehicleid)) ToggleSiren(vehicleid, 1);
}
public OnVehicleSirenStateChange(playerid, vehicleid, newstate)
{
    if(DynVeh[vehicleid] != -1)
    {
        for(new i = 0; i != MAX_DV_OBJECTS; i++)
        {
            ToggleDVSiren(DynVeh[vehicleid], i, newstate);
        }
    }
    switch(newstate)
    {
        case 0: ToggleSiren(vehicleid, 1);
        case 1:
        {
            if(!GetGVarType("VehSiren", vehicleid)) ToggleSiren(vehicleid, 0);
        }
    }
    return 1;
} 


How to define this and or is it a plugin/include ?