code: def test_bad_method(self):
      with pytest.raises(ValueError):
          G = nx.path_graph(2)
          nx.average_shortest_path_length(
              G, weight="weight", method="SPAM"
          )
  
imports: import pytest
  import networkx
label_desc: Use image node_id 9 for calling the TestAverageShortestPathLength obj's underlying member method code with example usage: obj.test_bad_method() without return types