vtkCPPythonPipeline: fix Python API
vtkSmartPointers don't get Python wrapped correctly. Adding an API to vtkCPPythonPipeline for Python use that does not return smart pointers.
Fixes #20357 (closed).
Backport: release
A GitLab update will be applied on April 24th, between 8am and 10am, EST (UTC-05:00). This site may have intermittent delays during that time.
vtkSmartPointers don't get Python wrapped correctly. Adding an API to vtkCPPythonPipeline for Python use that does not return smart pointers.
Fixes #20357 (closed).
Backport: release