code: def tearDown(self):
      if self.IMAGES_DIR:
          print("cleanup {}".format(self.IMAGES_DIR))
          shutil.rmtree(self.IMAGES_DIR)
  
imports: import os
  import mxnet
  import numpy
  import scipy.ndimage
  from mxnet.test_utils import *
  from common import xfail_when_nonstandard_decimal_separator
  import shutil
  import tempfile
  import unittest
  import pytest
label_desc: Use image node_id 2 for calling the TestImage obj's underlying member method code with example usage: obj.tearDown() without return types