code: def setUpClass(cls):
      env_config_path = os.path.abspath(
          os.path.join(os.path.dirname(__file__), "..", "..", ".env")
      )
      load_dotenv(env_config_path)
  
      cls.aug = Augmenter(
          name="base",
          method="flow",
          action="insert",
          aug_min=1,
          aug_max=10,
          aug_p=0.5,
      )
  
file_path: nlpaug/test/augmenter/test_base_augmenter.py
imports: import unittest
  import os
  import numpy
  from dotenv import load_dotenv
  from nlpaug import Augmenter
label_desc: Use image node_id 1 for calling the TestBaseAugmenter obj's underlying member method code with example usage: obj.setUpClass(cls) without return types