code: def setUp(self):
      self.df_adult = pd.read_csv(
          "pgmpy/tests/test_estimators/testdata/adult.csv"
      )
  
file_path: pgmpy/pgmpy/tests/test_estimators/test_CITests.py
imports: import unittest
  import math
  import numpy
  import pandas
  from numpy import testing
  from pgmpy.estimators.CITests import *
label_desc: Use image node_id 1 for calling the TestChiSquare obj's underlying member method code with example usage: obj.setUp() without return types