code: def __init__(self):
      super().__init__()
      self.dataset_name = "vizwiz"
      self.set_dataset_class(VizWizDataset)
  
imports: from mmf.common.registry import registry
  from mmf.datasets.builders.vizwiz.dataset import VizWizDataset
  from mmf.datasets.builders.vqa2 import VQA2Builder
label_desc: Use image node_id 1 to create a new VizWizBuilder object from inherited base classes: VQA2Builder with example: obj = VizWizBuilder()