code: def test_no_flow_satisfying_demands(simple_no_flow_graph):
      G = simple_no_flow_graph
      pytest.raises(nx.NetworkXUnfeasible, nx.network_simplex, G)
  
imports: import bz2
  import importlib.resources
  import os
  import pickle
  import pytest
  import networkx
label_desc: Use image node_id 9 for calling a global function with example usage: test_no_flow_satisfying_demands(simple_no_flow_graph) without return types