How to use vtkTemporalStatistics?

I’m trying to use vtkTemporalStatistics in python. Basically I have several vtkUnstructuredGrid objects and I want to feed them into vtkTemporalStatistics to take time-average over them. I’m not sure how to feed each time-step into the vtkTemporalStatistics class. Is it correct to use it this way?

temporalStatisticsFilter = vtk.vtkTemporalStatistics()
temporalStatisticsFilter.ComputeAverageOn()
for vtu in VTUs:
    temporalStatisticsFilter.SetInputData(vtu)
temporalStatisticsFilter.Update()

Where VTUs is the list of vtkUnstructuredGrid objects.

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