code: def test_weight2(self):
      self.g1.add_edge("A", "B", weight=2)
      assert not nx.is_isomorphic(self.g1, self.g2, edge_match=self.em)
  
imports: import math
  from operator import eq
  import networkx
  import networkx.algorithms.isomorphism
label_desc: Use image node_id 7 for calling the TestNodeMatch_Graph obj's underlying member method code with example usage: obj.test_weight2() without return types