code: def bad_data(self, request):
      return request.param
  
file_path: benchmark_VAE/tests/test_preprocessing.py
imports: import os
  import numpy
  import pytest
  import torch
  from pythae.data.datasets import BaseDataset
  from pythae.data.preprocessors import DataProcessor
label_desc: Use image node_id 1 for calling the Test_Format_Data obj's underlying member method code with example usage: obj.bad_data(request) and returns: request