code: def get_topics(self):
      """Get words X topics matrix.
  
      Returns
      --------
      numpy.ndarray:
          The term topic matrix learned during inference, shape (`num_topics`, `vocabulary_size`).
  
      Raises
      ------
      NotImplementedError
  
      """
      raise NotImplementedError
  
label_desc: Use image node_id 3 for calling the BaseTopicModel obj's underlying member method code with example usage: obj.get_topics() without return types