code: def test_dataset_viewer_pagexml(self):
      images = os.path.join(
          this_dir, "data", "avicanon_pagexml", "*.nrm.png"
      )
      self.run_dataset_viewer(
          ["--gen", "PageXML", "--gen.images", images]
      )
  
file_path: calamari/calamari_ocr/test/test_scripts.py
imports: import os
  import unittest
label_desc: Use image node_id 3 for calling the TestDatasetViewer obj's underlying member method code with example usage: obj.test_dataset_viewer_pagexml() without return types