code: def test_getxmp(self):
      with Image.open("Tests/images/color_snakes.png") as im:
          if ElementTree is None:
              with pytest.warns(
                  UserWarning,
                  match="XMP data cannot be read without defusedxml dependency",
              ):
                  assert im.getxmp() == {}
          else:
              xmp = im.getxmp()
  
              description = xmp["xmpmeta"]["RDF"]["Description"]
              assert description["PixelXDimension"] == "10"
              assert description["subject"]["Seq"] is None
  
imports: from __future__ import annotations
  import re
  import sys
  import warnings
  import zlib
  from io import BytesIO
  import pytest
  from PIL import Image, ImageFile, PngImagePlugin, features
  from .helper import PillowLeakTestCase, assert_image, assert_image_equal, assert_image_equal_tofile, hopper, is_win32, mark_if_feature_version, skip_unless_feature
label_desc: Use image node_id 45 for calling the TestFilePng obj's underlying member method code with example usage: obj.test_getxmp() without return types