code: def test_time_stretch_intensity(self):
      intensity = audaugs.time_stretch_intensity(
          metadata={}, factor=1.5
      )
      self.assertAlmostEqual(intensity, 15.0)
  
imports: import unittest
  import numpy
  from augly import audio
label_desc: Use image node_id 19 for calling the IntensityAudioUnitTest obj's underlying member method code with example usage: obj.test_time_stretch_intensity() without return types