code: def test_iter_0(self):
      self.generate(
          "test_iter_0",
          "test_lowess_iter.csv",
          out="out_0",
          kwargs={"it": 0},
      )
  
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 6 for calling the TestLowess obj's underlying member method code with example usage: obj.test_iter_0() without return types