code: def testLowFrequency(self):
      hpcp = HPCP(minFrequency=100, maxFrequency=1000)([99], [1])
      self.assertEqualVector(
          hpcp,
          [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0],
      )
  
file_path: essentia/test/src/unittests/spectral/test_hpcp.py
imports: from essentia_test import *
label_desc: Use image node_id 9 for calling the TestHPCP obj's underlying member method code with example usage: obj.testLowFrequency() without return types