code: def test_case_insensitive(self):
      retry_cnt = 10
  
      text = "Good"
      aug = naw.WordEmbsAug(
          model_type="word2vec",
          model_path=self.word2vec_model_path,
          top_k=2,
      )
  
      for _ in range(retry_cnt):
          augmented_data = aug.augment(text)
          augmented_text = augmented_data[0]
          self.assertNotEqual(text.lower(), augmented_text.lower())
  
      self.assertLess(0, retry_cnt)
  
file_path: nlpaug/test/augmenter/word/test_word_embs.py
imports: import unittest
  import os
  from dotenv import load_dotenv
  import nlpaug.augmenter.word
label_desc: Use image node_id 7 for calling the TestWordEmbsAug obj's underlying member method code with example usage: obj.test_case_insensitive() without return types