code: def test_hide_show_nodes(self):
      SubGraph = nx.subgraph_view
      for Graph in self.Graphs:
          G = nx.path_graph(4, Graph)
          SG = G.subgraph([2, 3])
          RG = SubGraph(G, filter_node=nx.filters.hide_nodes([0, 1]))
          assert SG.nodes == RG.nodes
          assert SG.edges == RG.edges
          SGC = SG.copy()
          RGC = RG.copy()
          assert SGC.nodes == RGC.nodes
          assert SGC.edges == RGC.edges
  
imports: import pickle
  import pytest
  import networkx
label_desc: Use image node_id 2 for calling the TestFilteredGraphs obj's underlying member method code with example usage: obj.test_hide_show_nodes() without return types