code: def test_tricontour_path():
      x = [0, 4, 4, 0, 2]
      y = [0, 0, 4, 4, 2]
      triang = mtri.Triangulation(x, y)
      _, ax = plt.subplots()
  
      # Line strip from boundary to boundary
      cs = ax.tricontour(triang, [1, 0, 0, 0, 0], levels=[0.5])
      paths = cs.get_paths()
      assert len(paths) == 1
      expected_vertices = [[2, 0], [1, 1], [0, 2]]
      assert_array_almost_equal(paths[0].vertices, expected_vertices)
      assert_array_equal(paths[0].codes, [1, 2, 2])
      assert_array_almost_equal(
          paths[0].to_polygons(closed_only=False), [expected_vertices]
      )
  
      # Closed line loop inside domain
      cs = ax.tricontour(triang, [0, 0, 0, 0, 1], levels=[0.5])
      paths = cs.get_paths()
      assert len(paths) == 1
      expected_vertices = [[3, 1], [3, 3], [1, 3], [1, 1], [3, 1]]
      assert_array_almost_equal(paths[0].vertices, expected_vertices)
      assert_array_equal(paths[0].codes, [1, 2, 2, 2, 79])
      assert_array_almost_equal(
          paths[0].to_polygons(), [expected_vertices]
      )
  
imports: import numpy
  from numpy.testing import assert_array_equal, assert_array_almost_equal, assert_array_less
  import numpy.ma.testutils
  import pytest
  import matplotlib
  import matplotlib.pyplot
  import matplotlib.tri
  from matplotlib.path import Path
  from matplotlib.testing.decorators import image_comparison, check_figures_equal
label_desc: Use image node_id 38 for calling a global function with example usage: test_tricontour_path() without return types