code: def tearDown(self):
      pass
  
imports: import unittest
  from nose.plugins.attrib import attr
  from nose.tools import *
  from textblob.tokenizers import WordTokenizer, SentenceTokenizer, word_tokenize, sent_tokenize
  from textblob.compat import PY2
label_desc: Use image node_id 2 for calling the TestWordTokenizer obj's underlying member method code with example usage: obj.tearDown() without return types