code: def test_color_noise(self):
      colors = naa.NoiseAug().model.COLOR_NOISES
  
      for color in colors:
          aug = naa.NoiseAug(color=color)
          augmented_data = aug.augment(self.audio)
          augmented_audio = augmented_data[0]
  
          self.assertFalse(np.array_equal(self.audio, augmented_audio))
          self.assertTrue(len(self.audio), len(augmented_audio))
          self.assertTrue(self.sampling_rate > 0)
  
file_path: nlpaug/test/augmenter/audio/test_noise.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 4 for calling the TestNoise obj's underlying member method code with example usage: obj.test_color_noise() without return types