code: def test_import(self):
      # this does not work
      # from statsmodels.api.nonparametric import lowess as lowess1
      import statsmodels.api as sm
  
      lowess1 = sm.nonparametric.lowess
      assert_(lowess is lowess1)
  
imports: import os
  import numpy
  from numpy.testing import assert_, assert_allclose, assert_almost_equal, assert_equal, assert_raises
  import pytest
  from statsmodels.nonparametric.smoothers_lowess import lowess
  import pandas
label_desc: Use image node_id 1 for calling the TestLowess obj's underlying member method code with example usage: obj.test_import() without return types