code: def setup_method(self):
      self.g1 = nx.Graph()
      self.g2 = nx.Graph()
      self.build()
  
imports: import math
  from operator import eq
  import networkx
  import networkx.algorithms.isomorphism
label_desc: Use image node_id 1 for calling the TestNodeMatch_Graph obj's underlying member method code with example usage: obj.setup_method() without return types