code: def test_polygon():
      geom = pv.Polygon()
      assert np.any(geom.points)
  
      geom1 = pv.Polygon(fill=True)
      assert geom1.n_cells == 2
      geom2 = pv.Polygon(fill=False)
      assert geom2.n_cells == 1
  
imports: from itertools import permutations
  import re
  import numpy
  import pytest
  import pyvista
label_desc: Use image node_id 31 for calling a global function with example usage: test_polygon() without return types