code: def __init__(self):
      super().__init__()
      self.dataset_name = "stvqa"
      self.set_dataset_class(STVQADataset)
  
imports: from mmf.common.registry import Registry
  from mmf.datasets.builders.stvqa.dataset import STVQADataset
  from mmf.datasets.builders.textvqa.builder import TextVQABuilder
label_desc: Use image node_id 1 to create a new STVQABuilder object from inherited base classes: TextVQABuilder with example: obj = STVQABuilder()