code: def setUpClass(cls):
      env_config_path = os.path.abspath(
          os.path.join(
              os.path.dirname(__file__), "..", "..", "..", ".env"
          )
      )
      load_dotenv(env_config_path)
  
      ppdb_model_file_path = os.path.join(
          os.environ.get("MODEL_DIR"), "word", "ppdb", "ppdb-2.0-s-all"
      )
  
      cls.augs = [
          naw.SynonymAug(aug_src="wordnet"),
          naw.SynonymAug(
              aug_src="ppdb", model_path=ppdb_model_file_path
          ),
      ]
  
file_path: nlpaug/test/augmenter/word/test_synonym.py
imports: import unittest
  import os
  from dotenv import load_dotenv
  import nlpaug.augmenter.word
label_desc: Use image node_id 1 for calling the TestSynonym obj's underlying member method code with example usage: obj.setUpClass(cls) without return types