code: def test_changes_reflected_back(fx_asset):
      """Changes on each single image should be reflected back to
      the container image.
  
      """
      with Image(filename=str(fx_asset.joinpath("apple.ico"))) as img:
          with img.sequence[3] as single:
              single.resize(32, 32)
              assert single.size == (32, 32)
              img.sequence.instances[3] = None  # to make new instance
              uncommitted = img.sequence[3]
              assert uncommitted.size == (16, 16)
          img.sequence.instances[3] = None
          with img.sequence[3] as committed:
              assert committed.size == (32, 32)
  
imports: from __future__ import print_function
  from pytest import mark, raises
  from wand.api import library
  from wand.image import Image
label_desc: Use image node_id 26 for calling a global function with example usage: test_changes_reflected_back(fx_asset) without return types