code: def test_np_pil_encode_to_the_same(self, gradio_temp_dir):
      arr = np.random.randint(
          0, 255, size=(100, 100, 3), dtype=np.uint8
      )
      pil = Image.fromarray(arr)
      assert processing_utils.save_pil_to_cache(
          pil, cache_dir=gradio_temp_dir
      ) == processing_utils.save_img_array_to_cache(
          arr, cache_dir=gradio_temp_dir
      )
  
imports: import os
  import shutil
  import tempfile
  from copy import deepcopy
  from pathlib import Path
  from unittest.mock import patch
  import ffmpy
  import numpy
  import pytest
  from gradio_client import media_data
  from PIL import Image, ImageCms
  from gradio import processing_utils, utils
label_desc: Use image node_id 5 for calling the TestImagePreprocessing obj's underlying member method code with example usage: obj.test_np_pil_encode_to_the_same(gradio_temp_dir) without return types