code: def setUp(self):
      with open("dog_problem.xml", "w") as fout:
          fout.write(TEST_FILE)
      self.reader = XMLBIFReader("dog_problem.xml")
  
imports: import os
  import unittest
  import xml.etree.ElementTree
  import numpy
  import numpy.testing
  from pgmpy import config
  from pgmpy.factors.discrete import TabularCPD
  from pgmpy.models import BayesianNetwork
  from pgmpy.readwrite import XMLBIFReader, XMLBIFWriter
label_desc: Use image node_id 1 for calling the TestXMLBIFReaderMethodsFile obj's underlying member method code with example usage: obj.setUp() without return types