old_contents: # import numpy
  # with numpy.warnings.catch_warnings():
  #     # numpy.warnings.filterwarnings('ignore', r"== np.dtype(complex).type`.")
  #     numpy.warnings.filterwarnings('ignore')
  #     from vtk.util import numpy_support as VN
  #     VN.numpy_to_vtk(numpy.zeros(10))
  
  import warnings
  from vtki._version import __version__
  from vtki.plotting import *
  from vtki.utilities import *
  from vtki.colors import *
  from vtki.common import Common
  from vtki.polydata import PolyData
  from vtki.grid import UnstructuredGrid
  from vtki.grid import StructuredGrid
  from vtki.grid import Grid
  from vtki.grid import RectilinearGrid
  from vtki.grid import UniformGrid
  from vtki.geometric_objects import *
  from vtki.examples import *
  
  import numpy as np
  
  import vtk
  
  # get the int type from vtk
  if vtk.VTK_ID_TYPE == 12:
      ID_TYPE = np.int64
  else:
      ID_TYPE = np.int32
  
  # determine if using vtk > 5
  if vtk.vtkVersion().GetVTKMajorVersion() < 5:
      raise Exception('VTK version must be 5.0 or greater.')
  
  
  # catch annoying numpy/vtk future warning:
  # vtk/util/numpy_support.py:135: FutureWarning: Conversion of the second argument of issubdtype from `complex` to `np.complexfloating` is deprecated. In future, it will be treated as `np.complex128 == np.dtype(complex).type`.
  #   assert not numpy.issubdtype(z.dtype, complex), \
  warnings.simplefilter(action='ignore', category=FutureWarning)
  
new_contents: # import numpy
  # with numpy.warnings.catch_warnings():
  #     # numpy.warnings.filterwarnings('ignore', r"== np.dtype(complex).type`.")
  #     numpy.warnings.filterwarnings('ignore')
  #     from vtk.util import numpy_support as VN
  #     VN.numpy_to_vtk(numpy.zeros(10))
  
  import warnings
  from vtki._version import __version__
  from vtki.plotting import *
  from vtki.utilities import *
  from vtki.colors import *
  from vtki.common import Common
  from vtki.polydata import PolyData
  from vtki.grid import UnstructuredGrid
  from vtki.grid import StructuredGrid
  from vtki.grid import Grid
  from vtki.grid import RectilinearGrid
  from vtki.grid import UniformGrid
  from vtki.geometric_objects import *
  
  import numpy as np
  
  import vtk
  
  # get the int type from vtk
  if vtk.VTK_ID_TYPE == 12:
      ID_TYPE = np.int64
  else:
      ID_TYPE = np.int32
  
  # determine if using vtk > 5
  if vtk.vtkVersion().GetVTKMajorVersion() < 5:
      raise Exception('VTK version must be 5.0 or greater.')
  
  
  # catch annoying numpy/vtk future warning:
  # vtk/util/numpy_support.py:135: FutureWarning: Conversion of the second argument of issubdtype from `complex` to `np.complexfloating` is deprecated. In future, it will be treated as `np.complex128 == np.dtype(complex).type`.
  #   assert not numpy.issubdtype(z.dtype, complex), \
  warnings.simplefilter(action='ignore', category=FutureWarning)
  
subject: Remove examples import