code: def test_mkl(self):
      o = specdesc("mkl")
      c = cvec()
      assert_equal(0.0, o(c))
      a = arange(c.length, dtype=float_type)
      c.norm = a
      assert_almost_equal(
          sum(log(1.0 + a / 1.0e-1)) / o(c), 1, decimal=6
      )
  
imports: from numpy.testing import TestCase, assert_equal, assert_almost_equal
  from numpy import random, arange, log, zeros
  from aubio import specdesc, cvec, float_type
label_desc: Use image node_id 7 for calling the aubio_specdesc obj's underlying member method code with example usage: obj.test_mkl() without return types