code: def test_incorrect_model_name(self):
      with self.assertRaises(ValueError) as error:
          naw.ContextualWordEmbsAug(model_path="unknown")
  
      self.assertTrue(
          "Model type value is unexpected." in str(error.exception)
      )
  
imports: import unittest
  import os
  from dotenv import load_dotenv
  import torch
  import nlpaug.augmenter.word
  import nlpaug.model.lang_models
label_desc: Use image node_id 3 for calling the TestContextualWordEmbsAug obj's underlying member method code with example usage: obj.test_incorrect_model_name() without return types