code: def setup_class(cls):
      # kidney data taken from JT's course
      # do not know the license
      cls.data = kidney_table
      cls.kidney_lm = ols(
          "np.log(Days+1) ~ C(Duration) * C(Weight) - 1", data=cls.data
      ).fit()
  
imports: from io import StringIO
  import numpy
  from statsmodels.stats.anova import anova_lm
  from statsmodels.formula.api import ols
  from pandas import read_csv
label_desc: Use image node_id 1 for calling the TestAnovaLMNoconstant obj's underlying member method code with example usage: obj.setup_class(cls) without return types