Offset Curve To Both Sides + Cap via C#

I can’t seem to find this in the developer reference. Does anyone know if the option to offset curves to “BothSides” is available via RhinoCommon? In Rhino, you can offset a curve to both sides and cap it in one single operation. Screenshot:

You will have to make it yourself like I’ve done in the Pufferfish offset curve which has both sides and capping options. It doesn’t simply exist that way in Rhinocommon.

Ok. Thanks. Will build something out.