code: def test_get_markov_blanket(self):
      self.network.add_edges_from(
          [
              (("a", 0), ("a", 1)),
              (("a", 0), ("b", 1)),
              (("b", 0), ("b", 1)),
          ]
      )
  
      markov_blanket = self.network.get_markov_blanket(("a", 1))
      self.assertListEqual(
          markov_blanket,
          [
              ("a", 0),  # parent
              ("a", 1),  # child 1's parent
              ("a", 2),  # child 1
              ("b", 1),  # child 2's parent
              ("b", 2),  # child 2
          ],
      )
  
imports: import unittest
  import numpy
  import numpy.testing
  import pandas
  import pgmpy.tests.help_functions
  from pgmpy.factors.discrete import TabularCPD
  from pgmpy.inference import CausalInference, DBNInference, VariableElimination
  from pgmpy.models import BayesianNetwork
  from pgmpy.models import DynamicBayesianNetwork
label_desc: Use image node_id 15 for calling the TestDynamicBayesianNetworkMethods obj's underlying member method code with example usage: obj.test_get_markov_blanket() without return types