code: def test_wheel_graph(self):
      for n, G in [
          ("", nx.null_graph()),
          (0, nx.null_graph()),
          (1, nx.empty_graph(1)),
          (2, nx.path_graph(2)),
          (3, nx.complete_graph(3)),
          (4, nx.complete_graph(4)),
      ]:
          g = nx.wheel_graph(n)
          assert is_isomorphic(g, G)
  
      g = nx.wheel_graph(10)
      assert sorted(d for n, d in g.degree()) == [
          3,
          3,
          3,
          3,
          3,
          3,
          3,
          3,
          3,
          9,
      ]
  
      pytest.raises(
          nx.NetworkXError, nx.wheel_graph, 10, create_using=nx.DiGraph
      )
  
      mg = nx.wheel_graph(10, create_using=nx.MultiGraph())
      assert edges_equal(mg.edges(), g.edges())
  
      G = nx.wheel_graph("abc")
      assert len(G) == 3
      assert G.size() == 3
  
      G = nx.wheel_graph("abcb")
      assert len(G) == 3
      assert G.size() == 4
      G = nx.wheel_graph("abcb", nx.MultiGraph)
      assert len(G) == 3
      assert G.size() == 6
  
imports: import itertools
  import typing
  import pytest
  import networkx
  from networkx.algorithms.isomorphism.isomorph import graph_could_be_isomorphic
  from networkx.utils import edges_equal, nodes_equal
label_desc: Use image node_id 41 for calling the TestGeneratorClassic obj's underlying member method code with example usage: obj.test_wheel_graph() without return types