code: def test_pagesplit(self):
      image = pyvips.Image.new_from_file(JPEG_FILE)
      many_page = image.pagejoin([image, image])
      image_list = many_page.pagesplit()
      assert len(image_list) == 3
  
file_path: pyvips/tests/test_image.py
imports: import pyvips
  import pytest
  from helpers import JPEG_FILE
label_desc: Use image node_id 2 for calling the TestImage obj's underlying member method code with example usage: obj.test_pagesplit() without return types