void LocalListUsageExample(int argument)
{
    NativeList<int> list = new NativeList<int>(Allocator.Temp);

    if(argument == 0)
    {
        list.Dispose();
        return;
    }

    list.Dispose();
    list.Add(argument);
    return;
}

void LocalListUsageExample(int argument)
{

    using(NativeList<int> list = new NativeList<int>(Allocator.Temp))
    {
        if(argument == 0)
        {
            return;
        }

        list.Add(argument);
        return;
    }
}