code: def setUp(self):
      data_folder = dirname(__file__)
      self.folder = join(data_folder, "sample_ws_corpus")
      self.saved_ws_folder = join(data_folder, "sample_saved_ws_corpus")
  
file_path: underthesea/tests/corpus/test_ws.py
imports: from os.path import dirname, join
  from unittest import TestCase
  from underthesea.corpus.ws_corpus import WSCorpus
label_desc: Use image node_id 1 for calling the TestWSCorpus obj's underlying member method code with example usage: obj.setUp() without return types