code: def test_custom_graph4_different_labels(self):
      G1 = nx.Graph()
      edges1 = [
          (1, 2),
          (2, 3),
          (3, 8),
          (3, 4),
          (4, 5),
          (4, 6),
          (3, 6),
          (8, 7),
          (8, 9),
          (5, 9),
          (10, 11),
          (11, 12),
          (12, 13),
          (11, 13),
      ]
  
      mapped = {
          1: "n",
          2: "m",
          3: "l",
          4: "j",
          5: "k",
          6: "i",
          7: "g",
          8: "h",
          9: "f",
          10: "b",
          11: "a",
          12: "d",
          13: "e",
      }
  
      G1.add_edges_from(edges1)
      G2 = nx.relabel_nodes(G1, mapped)
      nx.set_node_attributes(
          G1, dict(zip(G1, it.cycle(labels_many))), "label"
      )
      nx.set_node_attributes(
          G2,
          dict(zip([mapped[n] for n in G1], it.cycle(labels_many))),
          "label",
      )
      assert vf2pp_isomorphism(G1, G2, node_label="label") == mapped
  
imports: import itertools
  import pytest
  import networkx
  from networkx import vf2pp_is_isomorphic, vf2pp_isomorphism
label_desc: Use image node_id 7 for calling the TestGraphISOVF2pp obj's underlying member method code with example usage: obj.test_custom_graph4_different_labels() without return types