code: def testMissingF0(self):
      f0 = 110
      freqs = [2.9, 3.1]
      mags = [1.0, 0.5]
      freqs = [freq * f0 for freq in freqs]
  
      f, m = HarmonicPeaks(maxHarmonics=3)(freqs, mags, f0)
      self.assertAlmostEqualVector(f, [110, 220, 319])
      self.assertEqualVector(m, [0, 0, 1])
  
file_path: essentia/test/src/unittests/tonal/test_harmonicpeaks.py
imports: from essentia_test import *
label_desc: Use image node_id 5 for calling the TestHarmonicPeaks obj's underlying member method code with example usage: obj.testMissingF0() without return types