code: def __getitem__(self, idx):
      return self.x[idx], self.y[idx]
  
imports: import torch
  import tensorflow
  import os
  import numpy
  import keras
  from keras import layers
  from keras import ops
label_desc: Use image node_id 3 for calling the ExampleTorchDataset obj's underlying member method code with example usage: obj.__getitem__(idx) and returns: self,  self