code: def loadStructuredGrid(filename):  # not tested
      
      reader = vtk.vtkStructuredGridReader()
      reader.SetFileName(filename)
      reader.Update()
      gf = vtk.vtkStructuredGridGeometryFilter()
      gf.SetInputConnection(reader.GetOutputPort())
      gf.Update()
      return Actor(gf.GetOutput())
docs: Load a ``vtkStructuredGrid`` object from file and return a ``Actor(vtkActor)`` object.