Why some code works in workbench mechanical scripting, but not in pymechanical, How to systematically proceed

[lordlzy]

Following script works in workbench mechanical scripting, but not in pymechanical embedded.

analysis = Model.Analyses[0]
shaft_obj1 = analysis.CreateLoadObject("Shaft", "ANSYSMotion")
Shaft1_BRG_attach = shaft_obj1.Properties["Attachments/RollingBearings"]
Shaft1_BRG_attach.ValidState = ValidStateEnum.StateValid
-> NameError: name 'ValidStateEnum' is not defined

ANSYSMotionHelper.DrivetrainCallbackClass.ImportDTGeometry(shaft_obj)
-> NameError: name 'ANSYSMotionHelper' is not defined (discussion: #1144)