code: def _get_possible_attrs(self):
      return [
          "Flickr30kID",
          "Flikr30kID",
          "identifier",
          "image_path",
          "image_name",
          "img",
          "image_id",
      ]
  
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 9 for calling the TestDataBuilder obj's underlying member method code with example usage: obj._get_possible_attrs() and returns: list