code: def test_invalid_auxiliary():
      G = nx.complete_graph(5)
      pytest.raises(
          nx.NetworkXError, minimum_st_node_cut, G, 0, 3, auxiliary=G
      )
  
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 20 for calling a global function with example usage: test_invalid_auxiliary() without return types