Sorry that this is probably a super noob question. But the following code give me an error saying that there are invalid arguments in my call of

doStuffToLines(segments)

shouldnt I be able to do this since I have my DimensionLineSegment inherits from Lines?

   private void doStuff()
    {
        List<DimensionLineSegment> segments = new List<DimensionLineSegment>();

        doStuffToLines(segments);

    }

    private void doStuffToLines(List<Line> lines)
    {

    }