code: def __init__(
      self, config, dataset_type, imdb_file_index, *args, **kwargs
  ):
      super().__init__(
          "masked_visual_genome",
          config,
          dataset_type,
          imdb_file_index,
          *args,
          **kwargs,
      )
      self._add_answer = config.get("add_answer", True)
  
file_path: mmf/mmf/datasets/builders/visual_genome/masked_dataset.py
imports: from mmf.common.sample import Sample
  from mmf.datasets.mmf_dataset import MMFDataset
label_desc: Use image node_id 1 to create a new MaskedVisualGenomeDataset object from inherited base classes: MMFDataset with example: obj = MaskedVisualGenomeDataset(config, dataset_type, imdb_file_index)