class_docstr: A Simple PL Model.
  
  This model is adapted from BoringModel in
  https://github.com/PyTorchLightning/pytorch-lightning/
  blob/master/pytorch_lightning/demos/boring_classes.py
class_docstr_tok: ["A","Simple","PL","Model",".","This","model","is","adapted","from","BoringModel","in","https",":","\/\/github.com\/PyTorchLightning\/pytorch-lightning\/","blob\/master\/pytorch_lightning\/demos\/boring_classes.py"]
code: def validation_epoch_end(self, outputs) -> None:
      torch.stack([x["x"] for x in outputs]).mean()
  
imports: import torch
  from torch.utils.data import DataLoader, Dataset
  from pytorch_lightning import LightningModule
label_desc: Use image node_id 10 for calling the BoringModel obj's underlying member method code with example usage: obj.validation_epoch_end(outputs) without return types