code: def setUpClass(cls):
      cls.boston = load_boston()
  
file_path: AIX360/tests/rbm/test_Linear_Rule_Regression.py
imports: import json
  import numpy
  from numpy.testing import assert_allclose
  import pandas
  from pandas.util.testing import assert_frame_equal
  import unittest
  from sklearn.datasets import load_boston
  from sklearn.model_selection import train_test_split
  from sklearn.metrics import r2_score, explained_variance_score, mean_absolute_error, max_error
  from aix360.algorithms.rbm import FeatureBinarizer, GLRMExplainer, LinearRuleRegression
label_desc: Use image node_id 1 for calling the TestLinearRuleRegression obj's underlying member method code with example usage: obj.setUpClass(cls) without return types