code: def warm_start_components(self):
      return ["reward_net"]
  
imports: import logging
  from enum import Enum
  from typing import Optional
  import numpy
  import reagent.core.types
  import torch
  from reagent.core.dataclasses import field
  from reagent.models.base import ModelBase
  from reagent.optimizer.union import Optimizer__Union
  from reagent.training.reagent_lightning_module import ReAgentLightningModule
label_desc: Use image node_id 9 for calling the RewardNetTrainer obj's underlying member method code with example usage: obj.warm_start_components() and returns: list