code: def test_change_volume_intensity(self):
      intensity = audaugs.change_volume_intensity(
          metadata={}, volume_db=10.0
      )
      self.assertAlmostEqual(intensity, 9.090909091)
  
imports: import unittest
  import numpy
  from augly import audio
label_desc: Use image node_id 3 for calling the IntensityAudioUnitTest obj's underlying member method code with example usage: obj.test_change_volume_intensity() without return types