code: def testOnePeak(self):
      f0 = 110
      freqs = [f0]
      mags = [1]
      f, m = HarmonicPeaks(maxHarmonics=1)(freqs, mags, f0)
      self.assertEqualVector(f, freqs)
      self.assertEqualVector(m, mags)
  
file_path: essentia/test/src/unittests/tonal/test_harmonicpeaks.py
imports: from essentia_test import *
label_desc: Use image node_id 8 for calling the TestHarmonicPeaks obj's underlying member method code with example usage: obj.testOnePeak() without return types