code: def __call__(self, sample):
      return self.val_transforms([sample]), [sample]
  
imports: import random
  from typing import List
  import sentencepiece
  import torch
  import torchvision
  from data_module import LRS3DataModule
  from lightning import Batch
  from lightning_av import AVBatch
label_desc: Use image node_id 2 for calling the TestTransform obj's underlying member method code with example usage: obj.__call__(sample) and returns: self,  list