code: def test_cycle_graph():
      G = nx.cycle_graph(5)
      solution = [{0, 2}, {0, 3}, {1, 3}, {1, 4}, {2, 4}]
      cuts = list(nx.all_node_cuts(G))
      assert len(solution) == len(cuts)
      for cut in cuts:
          assert cut in solution
  
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 18 for calling a global function with example usage: test_cycle_graph() without return types