code: def test_non_exist_method(self):
      with self.assertRaises(ValueError) as error:
          aug = naa.NormalizeAug(method="test1234")
      self.assertTrue(
          "does not support yet. You may pick one"
          in str(error.exception)
      )
  
file_path: nlpaug/test/augmenter/audio/test_normalization.py
imports: import unittest
  import os
  import numpy
  from dotenv import load_dotenv
  import nlpaug.augmenter.audio
  from nlpaug.util import AudioLoader
label_desc: Use image node_id 3 for calling the TestNormalization obj's underlying member method code with example usage: obj.test_non_exist_method() without return types