code: def test_prog_res_rt():
      im = roundtrip(test_card, num_resolutions=8, progression="RLCP")
      assert_image_equal(im, test_card)
  
imports: import os
  import re
  from io import BytesIO
  import pytest
  from PIL import Image, ImageFile, Jpeg2KImagePlugin, UnidentifiedImageError, features
  from .helper import assert_image_equal, assert_image_similar, assert_image_similar_tofile, skip_unless_feature
label_desc: Use image node_id 15 for calling a global function with example usage: test_prog_res_rt() without return types