code: def test_voterank_centrality_2(self):
      G = nx.florentine_families_graph()
      d = nx.voterank(G, 4)
      exact = ["Medici", "Strozzi", "Guadagni", "Castellani"]
      assert exact == d
  
file_path: networkx/networkx/algorithms/centrality/tests/test_voterank.py
imports: import networkx
label_desc: Use image node_id 3 for calling the TestVoteRankCentrality obj's underlying member method code with example usage: obj.test_voterank_centrality_2() without return types