code: def setUp(self):
      self.tmpdirname = tempfile.mkdtemp()
  
      image_processor = Pix2StructImageProcessor()
      tokenizer = T5Tokenizer.from_pretrained("t5-small")
  
      processor = Pix2StructProcessor(image_processor, tokenizer)
  
      processor.save_pretrained(self.tmpdirname)
  
imports: import shutil
  import tempfile
  import unittest
  import numpy
  import pytest
  from transformers.testing_utils import require_torch, require_vision
  from transformers.utils import is_vision_available
label_desc: Use image node_id 1 for calling the Pix2StructProcessorTest obj's underlying member method code with example usage: obj.setUp() without return types