We have aneed to create the smartart of type Repeating Bending Process, and we see that this is fully supported as per the documentation in Aspose ( Working with SmartArt Cold Rendering in C#|Aspose.Words for .NET).
We tried gng through the example code from your git repo but couldn’t get much help there. We would need a sample code to achieve the same.
Below is the sample that I would expect from the code