code: def setUpClass(cls):
      env_config_path = os.path.abspath(
          os.path.join(
              os.path.dirname(__file__), "..", "..", "..", ".env"
          )
      )
      load_dotenv(env_config_path)
  
      cls.model_dir = "./models/lambada"
      cls.data = ["0", "1", "2"]
  
file_path: nlpaug/test/augmenter/sentence/test_lambada.py
imports: import unittest
  import os
  import torch
  import pandas
  from dotenv import load_dotenv
  import nlpaug.augmenter.sentence
label_desc: Use image node_id 1 for calling the TestLambadaAug obj's underlying member method code with example usage: obj.setUpClass(cls) without return types