code: def test_members(self):
      f = filterbank(40, 512)
      assert_equal([f.n_filters, f.win_s], [40, 512])
  
imports: import numpy
  from numpy.testing import TestCase, assert_equal, assert_almost_equal
  from aubio import cvec, filterbank, float_type
  from utils import array_from_text_file
label_desc: Use image node_id 1 for calling the aubio_filterbank_test_case obj's underlying member method code with example usage: obj.test_members() without return types