Нужно ли удалять после создание CreateForce()

library LocalEffect {
    #include "cj_types_priv.j"
    #include "cj_typesEX_priv.j"

    private force  allies = new force;
    private string temp;

    private string ForAllies(player ofPlayer, string modelName) {
        temp = " ";
        ForceEnumAllies(allies, ofPlayer, null);
        if (IsPlayerInForce(GetLocalPlayer(), allies)) {
            temp = modelName;
        }
        ForceClear(allies);
        return temp;
    }

    effect AddEffectForAllies(player ofPlayer, string modelName, float x, float y) {
        return AddSpecialEffect(ForAllies(ofPlayer, modelName), x, y);
    }

    effect AddEffectTargetForAllies(player ofPlayer, string modelName, widget targetWidget, string attachPointName) {
        return AddSpecialEffectTarget(ForAllies(ofPlayer, modelName), targetWidget, attachPointName);
    }
}