code: def test_octs_to_hz(tuning, bins_per_octave):
      freq = np.asarray([55, 110, 220, 440]) * (
          2.0 ** (tuning / bins_per_octave)
      )
      freq_out = librosa.octs_to_hz(
          [1, 2, 3, 4], tuning=tuning, bins_per_octave=bins_per_octave
      )
  
      assert np.allclose(freq, freq_out)
  
imports: import os
  import sys
  import warnings
  import librosa
  import numpy
  import pytest
label_desc: Use image node_id 7 for calling a global function with example usage: test_octs_to_hz(tuning, bins_per_octave) without return types