code: def test_dataset_viewer_hdf5(self):
      files = os.path.join(
          this_dir, "data", "uw3_50lines", "uw3-50lines.h5"
      )
      self.run_dataset_statistics(
          ["--data", "Hdf5", "--data.files", files]
      )
  
file_path: calamari/calamari_ocr/test/test_scripts.py
imports: import os
  import unittest
label_desc: Use image node_id 5 for calling the TestDatasetStatistics obj's underlying member method code with example usage: obj.test_dataset_viewer_hdf5() without return types