code: def testZero(self):
      input = [0.0] * 100 * 1024  # 100 frames of size 1024
      expected = [0, [], [], []]
      result = self.runInstance(input, poolInit=True)
      self._assertEqualResults(result, expected)
  
file_path: essentia/test/src/unittests/rhythm/test_rhythmextractor.py
imports: from essentia_test import *
  from essentia.streaming import RhythmExtractor
  from essentia.standard import MonoLoader, RhythmExtractor
  from math import fabs
label_desc: Use image node_id 9 for calling the TestRhythmExtractor obj's underlying member method code with example usage: obj.testZero() without return types