code: def testStreamingRegression(self):
      from essentia.streaming import (
          MonoLoader as sMonoLoader,
          DynamicComplexity as sDynamicComplexity,
      )
  
      filename = join(testdata.audio_dir, "recorded", "techno_loop.wav")
      loader = sMonoLoader(
          filename=filename, downmix="left", sampleRate=44100
      )
      dyn = sDynamicComplexity()
      pool = Pool()
  
      loader.audio >> dyn.signal
      dyn.dynamicComplexity >> (pool, "complexity")
      dyn.loudness >> (pool, "loudness")
      run(loader)
  
      self.assertAlmostEqual(
          pool["complexity"], 5.865970134735107, 1e-1
      )
      self.assertAlmostEqual(
          pool["loudness"], -21.189722061157227, 1e-1
      )
  
file_path: essentia/test/src/unittests/highlevel/test_dynamiccomplexity.py
imports: from essentia_test import *
label_desc: Use image node_id 5 for calling the TestDynamicComplexity obj's underlying member method code with example usage: obj.testStreamingRegression() without return types