code: def test_normalized_coords_transform(self):
      bbox = (32, 24, 288, 216)
      x0, y0, w, h = bbox
      xmin, ymin, xmax, ymax = x0, y0, x0 + w, y0 + h
      f = normalized_coords_transform(*bbox)
      # Top-left
      expected_p, actual_p = (-1, -1), f((xmin, ymin))
      self.assertEqual(expected_p, actual_p)
      # Top-right
      expected_p, actual_p = (1, -1), f((xmax, ymin))
      self.assertEqual(expected_p, actual_p)
      # Bottom-left
      expected_p, actual_p = (-1, 1), f((xmin, ymax))
      self.assertEqual(expected_p, actual_p)
      # Bottom-right
      expected_p, actual_p = (1, 1), f((xmax, ymax))
      self.assertEqual(expected_p, actual_p)
  
imports: import unittest
  from densepose.structures import normalized_coords_transform
label_desc: Use image node_id 1 for calling the TestStructures obj's underlying member method code with example usage: obj.test_normalized_coords_transform() without return types