code: def best_para(self, id_):
      best_para_ = self._get_result(id_, "best_para")
  
      if best_para_ is not None:
          return best_para_
  
      raise ValueError("objective function name not recognized")
  
file_path: Hyperactive/hyperactive/results.py
imports: import numpy
  import pandas
label_desc: Use image node_id 4 for calling the Results obj's underlying member method code with example usage: obj.best_para(id_) and returns: best_para_