code: def strategy(self) -> Union[None, Strategy, Dict[str, Strategy]]:
      strategies: Dict[str, Strategy] = {}
      if self.epistemic_enabled:
          strategies[f"{self.name}_epistemic"] = Epistemic()
      return strategies
  
imports: import logging
  import os
  from typing import Any, Dict, Optional, Union
  import lib.infers
  import lib.trainers
  from lib.scoring import CVATEpistemicScoring
  from monai.networks.nets import BasicUNet
  from monailabel.interfaces.config import TaskConfig
  from monailabel.interfaces.tasks.infer_v2 import InferTask
  from monailabel.interfaces.tasks.scoring import ScoringMethod
  from monailabel.interfaces.tasks.strategy import Strategy
  from monailabel.interfaces.tasks.train import TrainTask
  from monailabel.tasks.activelearning.epistemic import Epistemic
  from monailabel.utils.others.generic import download_file, strtobool
label_desc: Use image node_id 4 for calling the DeepEdit obj's underlying member method code with example usage: obj.strategy() and returns: strategies