code: def test_statsmodels():
      smf = pytest.importorskip("statsmodels.formula.api")
  
      df = DataFrame(
          {
              "Lottery": range(5),
              "Literacy": range(5),
              "Pop1831": range(100, 105),
          }
      )
      smf.ols("Lottery ~ Literacy + np.log(Pop1831)", data=df).fit()
  
imports: import array
  from functools import partial
  import subprocess
  import sys
  import numpy
  import pytest
  from pandas.errors import IntCastingNaNError
  import pandas
  from pandas import DataFrame, DatetimeIndex, Series, TimedeltaIndex
  import pandas._testing
  from pandas.core.arrays import DatetimeArray, TimedeltaArray
label_desc: Use image node_id 9 for calling a global function with example usage: test_statsmodels() without return types