code: def setUpClass(cls):
      cls.corpus = build_hamlet_jz_corpus()
  
file_path: scattertext/scattertext/test/test_ZScores.py
imports: from unittest import TestCase
  import pandas
  import numpy
  from scattertext import OncePerDocFrequencyRanker
  from scattertext.termscoring.ZScores import ZScores
  from scattertext.test.test_termDocMatrixFactory import build_hamlet_jz_corpus, build_hamlet_jz_corpus_with_meta
label_desc: Use image node_id 1 for calling the TestZScores obj's underlying member method code with example usage: obj.setUpClass(cls) without return types