code: def test_not_connected_nodes():
      with pytest.raises(nx.NetworkXNoPath):
          G = nx.Graph()
          nx.add_path(G, [1, 2, 3])
          nx.add_path(G, [4, 5])
          list(nx.node_disjoint_paths(G, 1, 5))
  
imports: import pytest
  import networkx
  from networkx.algorithms import flow
  from networkx.utils import pairwise
label_desc: Use image node_id 18 for calling a global function with example usage: test_not_connected_nodes() without return types