How to set Refinemet in SPHVolumeInterpolator in PvPython

I found the volume refinement is important on SPHVolumeInterpolation. And I can set it easily in GUI. But I can not find this in both the guide and script tracer.

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Thus, I’d like to ask if there any functions in pvPyhon to set these parameters?
Thanks

if “sPHVolumeInterpolator1” is your Python object in pvbatch/pvpython, then the resolution can be set like this:

sPHVolumeInterpolator1.Source.Resolution = [512,512,512]