code: def test_values(self):
      self.assertEqual(WINDOW, 0.025)
  
imports: from __future__ import absolute_import, division, print_function
  import math
  import unittest
  from madmom.evaluation.notes import *
  from .None import ANNOTATIONS_PATH, DETECTIONS_PATH
label_desc: Use image node_id 2 for calling the TestNoteConstantsClass obj's underlying member method code with example usage: obj.test_values() without return types