code: def setup_method(self):
      self.Graphs = [
          nx.Graph,
          nx.DiGraph,
          nx.MultiGraph,
          nx.MultiDiGraph,
      ]
  
imports: import pickle
  import pytest
  import networkx
label_desc: Use image node_id 1 for calling the TestFilteredGraphs obj's underlying member method code with example usage: obj.setup_method() without return types