code: def __init__(self):
      self.best_para = None
      self.best_score = None
      self.best_since_iter = None
      self.eval_times = None
      self.iter_times = None
      self.search_data = None
      self.random_seed = None
  
label_desc: Use image node_id 1 to create a new OptimizerAttributes object  with example: obj = OptimizerAttributes()