code: def tearDown(self):
      pass
  
imports: from __future__ import division, print_function
  import os
  import sys
  import unittest
  import numpy
  from numpy.testing import assert_allclose, assert_array_less, assert_equal, assert_raises
  from scipy.stats import rankdata
  from sklearn.base import clone
  from sklearn.metrics import roc_auc_score
  from pyod.models.sampling import Sampling
  from pyod.utils.data import generate_data
label_desc: Use image node_id 3 for calling the TestSamplingMahalanobis obj's underlying member method code with example usage: obj.tearDown() without return types