code: def test_zero_fmax(self):
      f = filterbank(40, 1024)
      f.set_mel_coeffs(44100, 0, 0)
  
imports: import numpy
  from numpy.testing import TestCase, assert_equal, assert_almost_equal
  from _tools import assert_warns
  from aubio import fvec, cvec, filterbank, float_type
label_desc: Use image node_id 17 for calling the aubio_filterbank_mel_test_case obj's underlying member method code with example usage: obj.test_zero_fmax() without return types