code: def load(self, config, dataset_type, *args, **kwargs):
      config = config
  
      if config.use_features:
          self.dataset_class = MMIMDbFeaturesDataset
  
      self.dataset = super().load(config, dataset_type, *args, **kwargs)
  
      return self.dataset
  
imports: from mmf.common.registry import registry
  from mmf.datasets.builders.mmimdb.dataset import MMIMDbFeaturesDataset, MMIMDbImageDataset
  from mmf.datasets.builders.vqa2.builder import VQA2Builder
label_desc: Use image node_id 3 for calling the MMIMDbBuilder obj's underlying member method code with example usage: obj.load(config, dataset_type) and returns: self