code: def __call__(self, graph):
      if graph.a is not None:
          graph.a = normalized_adjacency(graph.a, self.symmetric)
  
      return graph
  
imports: from spektral.utils import normalized_adjacency
label_desc: Use image node_id 2 for calling the NormalizeAdj obj's underlying member method code with example usage: obj.__call__(graph) and returns: graph