code: def test_smoothconf(self):
      super().test_smoothconf()
  
imports: import os
  import numpy
  from numpy.testing import assert_allclose, assert_array_less
  import pandas
  import pytest
  from statsmodels.sandbox.nonparametric import kernels
label_desc: Use image node_id 1 for calling the TestCosine obj's underlying member method code with example usage: obj.test_smoothconf() without return types