code: def test_contains(self):
      assert (2, 3) in self.G.edges
      assert (3, 2) not in self.G.edges
      assert (2, 3) not in self.rv.edges
      assert (3, 2) in self.rv.edges
  
imports: import pytest
  import networkx
  from networkx.utils import edges_equal, nodes_equal
label_desc: Use image node_id 3 for calling the TestReverseView obj's underlying member method code with example usage: obj.test_contains() without return types