code: def build_dataset_from_cfg(cfg, default_args=None):
      """
      Build a dataset, defined by `dataset_name`.
      Args:
          cfg (eDICT):
      Returns:
          Dataset: a constructed dataset specified by dataset_name.
      """
      return DATASETS.build(cfg, default_args=default_args)
  
label_desc: Use image node_id 1 for calling a global function with example usage: build_dataset_from_cfg(cfg, default_args) and returns: DATASETS