code: def test_neu():
      """
      Test the NEU meta embedding class.
      """
      graph = nx.newman_watts_strogatz_graph(100, 20, 0.05)
  
      model = NetMF()
      meta_model = NEU()
      meta_model.fit(graph, model)
      embedding = meta_model.get_embedding()
  
      assert embedding.shape[0] == graph.number_of_nodes()
      assert type(embedding) == np.ndarray
  
      graph = nx.newman_watts_strogatz_graph(200, 20, 0.05)
  
      model = DeepWalk()
      meta_model = NEU()
      meta_model.fit(graph, model)
      embedding = meta_model.get_embedding()
  
      assert embedding.shape[0] == graph.number_of_nodes()
      assert type(embedding) == np.ndarray
  
label_desc: Use image node_id 1 for calling a global function with example usage: test_neu() without return types