code: def test_invalid_auxiliary():
      with pytest.raises(nx.NetworkXError):
          G = nx.complete_graph(5)
          list(nx.node_disjoint_paths(G, 0, 3, auxiliary=G))
  
imports: import pytest
  import networkx
  from networkx.algorithms import flow
  from networkx.utils import pairwise
label_desc: Use image node_id 21 for calling a global function with example usage: test_invalid_auxiliary() without return types