code: def test_plane():
      surf = pv.Plane()
      assert np.any(surf.points)
      assert np.any(surf.faces)
      assert np.array_equal(surf.center, (0, 0, 0))
  
imports: from itertools import permutations
  import re
  import numpy
  import pytest
  import pyvista
label_desc: Use image node_id 22 for calling a global function with example usage: test_plane() without return types