Helix in RhinoCommon

When I browse RhinoCommon using “helix” as a search term all I find is a Get method. Is there no method to build a helix? Would this be an oversight or just not needed because anyone smarter than me would know how to build a helix using existing methods? I’m thinking of something that would duplicate the functionality of the native command using the option info that it works with.

https://developer.rhino3d.com/api/RhinoCommon/html/M_Rhino_Geometry_NurbsCurve_CreateSpiral_1.htm

This one will give you the approximation of a helix.

I’m pretty sure that’s what you get from the native command, so this certainly seems to be what I’m looking for.

Thanks very much for getting me back on track.