code: def test_init(self):
      self.assertTrue(self.eval.name == "TestEval")
      self.assertTrue(self.eval.detection, 9)
      self.assertTrue(self.eval.annotation, 18)
  
imports: from __future__ import absolute_import, division, print_function
  import unittest
  from os.path import join
  from madmom.evaluation.key import *
  from .None import ANNOTATIONS_PATH, DETECTIONS_PATH
label_desc: Use image node_id 2 for calling the TestKeyEvaluationClass obj's underlying member method code with example usage: obj.test_init() without return types