class_docstr: Only testing the number of triangles and their type here.
  This doesn't actually test the points in the resulting geometries.
code: def setUp(self):
      self.p = Polygon([(0, 0), (1, 0), (1, 1), (0, 1)])
  
file_path: shapely/shapely/tests/legacy/test_delaunay.py
imports: import unittest
  from shapely.geometry import LineString, Point, Polygon
  from shapely.ops import triangulate
label_desc: Use image node_id 1 for calling the DelaunayTriangulation obj's underlying member method code with example usage: obj.setUp() without return types