code: def tearDown(self):
      if hasattr(self, "temp_file_path"):
          os.remove(self.temp_file_path)
  
imports: import contextlib
  import os
  import tempfile
  import unittest
  import numpy
  import chainer
  from chainer import links
  from chainer import testing
label_desc: Use image node_id 2 for calling the TestDecorrelatedBatchNormalizationCompat obj's underlying member method code with example usage: obj.tearDown() without return types