docstr: This function prepares a list of PIL images.
docstr_tok: ["This","function","prepares","a","list","of","PIL","images","."]
code: def prepare_image_inputs(self):
      """This function prepares a list of PIL images."""
  
      image_input = np.random.randint(
          255, size=(3, 30, 400), dtype=np.uint8
      )
  
      image_input = Image.fromarray(np.moveaxis(image_input, 0, -1))
  
      return image_input
  
imports: import json
  import os
  import shutil
  import tempfile
  import unittest
  import numpy
  import pytest
  from transformers import MgpstrTokenizer
  from transformers.models.mgp_str.tokenization_mgp_str import VOCAB_FILES_NAMES
  from transformers.testing_utils import require_torch, require_vision
  from transformers.utils import IMAGE_PROCESSOR_NAME, is_torch_available, is_vision_available
label_desc: Use image node_id 6 for calling the MgpstrProcessorTest obj's underlying member method code with example usage: obj.prepare_image_inputs() and returns: image_input