code: def test_all_pairs_connectivity_nbunch(self):
      G = nx.complete_graph(5)
      nbunch = [0, 2, 3]
      C = approx.all_pairs_node_connectivity(G, nbunch=nbunch)
      assert len(C) == len(nbunch)
  
imports: import pytest
  import networkx
  from networkx.algorithms import approximation
label_desc: Use image node_id 6 for calling the TestAllPairsNodeConnectivityApprox obj's underlying member method code with example usage: obj.test_all_pairs_connectivity_nbunch() without return types