code: def test_example_1():
      G = graph_example_1()
      _check_separating_sets(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 5 for calling a global function with example usage: test_example_1() without return types