code: def test_Z_weighting(min_db):
      # Check that 1KHz is around 0dB
      d_khz = librosa.Z_weighting(np.linspace(2e1, 2e4), min_db=min_db)
      assert np.allclose(d_khz, 0, atol=1e-3)
  
imports: import os
  import sys
  import warnings
  import librosa
  import numpy
  import pytest
label_desc: Use image node_id 29 for calling a global function with example usage: test_Z_weighting(min_db) without return types