code: def _get_image_info(self, idx):
      # Deep copy so that we can directly update the nested dicts
      return copy.deepcopy(self.scene_graph_db[self._get_image_id(idx)])
  
file_path: mmf/mmf/datasets/builders/visual_genome/dataset.py
imports: import copy
  import json
  import torch
  from mmf.common.sample import Sample, SampleList
  from mmf.datasets.builders.vqa2 import VQA2Dataset
  from mmf.datasets.databases.scene_graph_database import SceneGraphDatabase
label_desc: Use image node_id 4 for calling the VisualGenomeDataset obj's underlying member method code with example usage: obj._get_image_info(idx) and returns: copy