code: def test_multidigraph(self):
      G = nx.MultiDiGraph()
      nx.add_path(G, [1, 2, 3])
      H = adjacency_graph(adjacency_data(G))
      assert H.is_directed()
      assert H.is_multigraph()
      assert graphs_equal(G, H)
  
file_path: networkx/networkx/readwrite/json_graph/tests/test_adjacency.py
imports: import copy
  import json
  import pytest
  import networkx
  from networkx.readwrite.json_graph import adjacency_data, adjacency_graph
  from networkx.utils import graphs_equal
label_desc: Use image node_id 4 for calling the TestAdjacency obj's underlying member method code with example usage: obj.test_multidigraph() without return types