code: def test_unbounded():
      G = nx.complete_graph(5)
      for flow_func in flow_funcs:
          assert 4 == len(
              minimum_st_edge_cut(G, 1, 4, flow_func=flow_func)
          )
  
imports: import pytest
  import networkx
  from networkx.algorithms import flow
  from networkx.algorithms.connectivity import minimum_st_edge_cut, minimum_st_node_cut
  from networkx.utils import arbitrary_element
label_desc: Use image node_id 12 for calling a global function with example usage: test_unbounded() without return types