code: def on_validation_epoch_end(self):
      nni.report_intermediate_result(self._get_validation_metrics())
  
imports: import warnings
  from typing import Dict, List, Optional, Union, Type
  import torch.nn
  import torch.optim
  import torchmetrics
  from torch.utils.data import DataLoader
  import nni
  from ..lightning import LightningModule, _AccuracyWithLogits, Lightning
  from .trainer import Trainer
label_desc: Use image node_id 8 for calling the _MultiModelSupervisedLearningModule obj's underlying member method code with example usage: obj.on_validation_epoch_end() without return types