code: def test_configuration():
      deg_seq = nx.random_powerlaw_tree_sequence(100, tries=5, seed=72)
      G = nx.Graph(nx.configuration_model(deg_seq))
      G.remove_edges_from(nx.selfloop_edges(G))
      _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 8 for calling a global function with example usage: test_configuration() without return types