code: def test_valid2(self):
      G = networkx.random_clustered_graph(
          [(1, 2), (2, 1), (1, 1), (1, 1), (1, 1), (2, 0)]
      )
      assert G.number_of_nodes() == 6
      assert G.number_of_edges() == 10
  
imports: import pytest
  import networkx
label_desc: Use image node_id 2 for calling the TestRandomClusteredGraph obj's underlying member method code with example usage: obj.test_valid2() without return types