code: def _get_feature_paths(self, data, feature_folder):
      if feature_folder is None:
          return []
  
      features = set()
      for item in data:
          possible_images = self._get_attrs(item)
          for image in possible_images:
              image = ".".join(image.split(".")[:-1])
              feature = image + ".npy"
              info = image + "_info.npy"
              features.add(os.path.join(feature_folder, feature))
              features.add(os.path.join(feature_folder, info))
  
      return features
  
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 7 for calling the TestDataBuilder obj's underlying member method code with example usage: obj._get_feature_paths(data, feature_folder) and returns: features, list