old_contents: image_size = 28
  pixel_depth = 255.0
  number_of_train_images = 40000
  number_of_test_images = 13000
  color_channels = 3
  
new_contents: image_size = 28
  pixel_depth = 255.0
  color_channels = 3
  
  name_of_info_file = 'images_info.csv'
  
subject: Update settings