code: def test_is_separating_set_complete_graph():
      G = nx.complete_graph(5)
      assert _is_separating_set(G, {0, 1, 2, 3})
  
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 15 for calling a global function with example usage: test_is_separating_set_complete_graph() without return types