code: def get(self, item):
      feature_path = item.get(self.feature_key, None)
  
      if feature_path is None:
          feature_path = self._get_feature_path_based_on_image(item)
  
      return self.from_path(feature_path)
  
file_path: mmf/mmf/datasets/databases/features_database.py
imports: import logging
  from multiprocessing.pool import ThreadPool
  import tqdm
  from mmf.datasets.databases.image_database import ImageDatabase
  from mmf.datasets.databases.readers.feature_readers import FeatureReader
  from mmf.utils.distributed import is_main
  from mmf.utils.general import get_absolute_path
label_desc: Use image node_id 8 for calling the FeaturesDatabase obj's underlying member method code with example usage: obj.get(item) and returns: self