code: def __repr__(self):
      return "m_{}_s_{}".format(self.model_id, self.score)
  
file_path: singa/examples/model_selection/TRAILS-Database-Native-Model-Selection/internal/ml/model_selection/src/controller/controler.py
imports: import time
  from src.controller.core.sample import Sampler
  from src.third_pkg.models import CellStructure
label_desc: Use image node_id 2 for calling the ModelScore obj's underlying member method code with example usage: obj.__repr__() and returns: str