code: def test_get_intra_and_inter_edges(self):
      self.network.add_edges_from(
          [
              (("a", 0), ("b", 0)),
              (("a", 0), ("a", 1)),
              (("b", 0), ("b", 1)),
          ]
      )
      self.assertListEqual(
          sorted(self.network.get_intra_edges()), [(("a", 0), ("b", 0))]
      )
      self.assertListEqual(
          sorted(self.network.get_intra_edges(1)),
          [(("a", 1), ("b", 1))],
      )
      self.assertRaises(ValueError, self.network.get_intra_edges, -1)
      self.assertRaises(ValueError, self.network.get_intra_edges, "-")
      self.assertListEqual(
          sorted(self.network.get_inter_edges()),
          [(("a", 0), ("a", 1)), (("b", 0), ("b", 1))],
      )
  
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 3 for calling the TestDynamicBayesianNetworkMethods obj's underlying member method code with example usage: obj.test_get_intra_and_inter_edges() without return types