code: def test_complete_graph():
      G = nx.complete_graph(5)
      assert nx.node_connectivity(G) == 4
      assert list(nx.all_node_cuts(G)) == []
  
imports: import itertools
  import pytest
  import networkx
  from networkx.algorithms import flow
  from networkx.algorithms.connectivity.kcutsets import _is_separating_set
label_desc: Use image node_id 19 for calling a global function with example usage: test_complete_graph() without return types