code: def _get_image_paths(self, data, image_folder):
      if image_folder is None:
          return []
  
      images = set()
      for item in data:
          possible_images = self._get_attrs(item)
          for image in possible_images:
              images.add(os.path.join(image_folder, image))
  
      return images
  
file_path: mmf/tools/scripts/tests/generate_test_data.py
imports: import argparse
  import json
  import os
  import shutil
  import numpy
  from tools.scripts.features.lmdb_conversion import LMDBConversion
label_desc: Use image node_id 6 for calling the TestDataBuilder obj's underlying member method code with example usage: obj._get_image_paths(data, image_folder) and returns: images, list