code: def setUp(self):
      self.fname = datapath(
          "enwiki-latest-pages-articles1.xml-p000000010p000030302-shortened.bz2"
      )
      self.expected_title = "Anarchism"
      self.expected_section_titles = [
          "Introduction",
          "Etymology and terminology",
          "History",
          "Anarchist schools of thought",
          "Internal issues and debates",
          "Topics of interest",
          "Criticisms",
          "References",
          "Further reading",
          "External links",
      ]
  
imports: from __future__ import unicode_literals
  import json
  import logging
  import os.path
  import unittest
  import numpy
  from gensim import utils
  from gensim.scripts.segment_wiki import segment_all_articles, segment_and_write_all_articles
  from gensim.test.utils import datapath, get_tmpfile
  from gensim.scripts.word2vec2tensor import word2vec2tensor
  from gensim.models import KeyedVectors
label_desc: Use image node_id 1 for calling the TestSegmentWiki obj's underlying member method code with example usage: obj.setUp() without return types