code: def test_all_pairs_all_shortest_paths(self):
      ans = dict(nx.all_pairs_all_shortest_paths(nx.cycle_graph(4)))
      assert sorted(ans[1][3]) == [[1, 0, 3], [1, 2, 3]]
      ans = dict(
          nx.all_pairs_all_shortest_paths(nx.cycle_graph(4)),
          weight="weight",
      )
      assert sorted(ans[1][3]) == [[1, 0, 3], [1, 2, 3]]
      ans = dict(
          nx.all_pairs_all_shortest_paths(nx.cycle_graph(4)),
          method="bellman-ford",
          weight="weight",
      )
      assert sorted(ans[1][3]) == [[1, 0, 3], [1, 2, 3]]
      G = nx.cycle_graph(4)
      G.add_node(4)
      ans = dict(nx.all_pairs_all_shortest_paths(G))
      assert sorted(ans[4][4]) == [[4]]
  
imports: import pytest
  import networkx
label_desc: Use image node_id 11 for calling the TestGenericPath obj's underlying member method code with example usage: obj.test_all_pairs_all_shortest_paths() without return types