code: def wrap(vtkdataset):
      
      wrappers = {
          'vtkUnstructuredGrid' : vtki.UnstructuredGrid,
          'vtkRectilinearGrid' : vtki.RectilinearGrid,
          'vtkStructuredGrid' : vtki.StructuredGrid,
          'vtkPolyData' : vtki.PolyData,
          'vtkImageData' : vtki.UniformGrid,
          'vtkStructuredPoints' : vtki.UniformGrid,
          'vtkMultiBlockDataSet' : vtki.MultiBlock,
          }
      key = vtkdataset.GetClassName()
      try:
          wrapped = wrappers[key](vtkdataset)
      except:
          logging.warning('VTK data type ({}) is not currently supported by vtki.'.format(key))
          return vtkdataset # if not supported just passes the VTK data object
      return wrapped
docs: This is a convenience method to safely wrap any given VTK data object
      to its appropriate ``vtki`` data object.