code: def test_network_name(self):
      name_expected = "Dog-Problem"
      self.assertEqual(self.reader.network_name, name_expected)
  
imports: import os
  import unittest
  import networkx
  import numpy
  import numpy.testing
  from pgmpy import config
  from pgmpy.factors.discrete import TabularCPD
  from pgmpy.models import BayesianNetwork
  from pgmpy.readwrite import BIFReader, BIFWriter
label_desc: Use image node_id 2 for calling the TestBIFReader obj's underlying member method code with example usage: obj.test_network_name() without return types