code: def test_hz_to_fjs_scalar():
      fjs = librosa.hz_to_fjs(110, fmin=55, unicode=False)
  
      assert fjs == "A"
  
imports: import os
  import sys
  import warnings
  import numpy
  import pytest
  import librosa
label_desc: Use image node_id 29 for calling a global function with example usage: test_hz_to_fjs_scalar() without return types