class_docstr: Base DataModule.
code: def add_to_argparse(parser):
      parser.add_argument(
          "--batch_size",
          type=int,
          default=BATCH_SIZE,
          help="Number of examples to operate on per forward step.",
      )
      parser.add_argument(
          "--num_workers",
          type=int,
          default=NUM_WORKERS,
          help="Number of additional processes to load data.",
      )
      parser.add_argument(
          "--data_dir",
          type=str,
          default="./dataset/dialogue",
          help="Number of additional processes to load data.",
      )
      return parser
  
file_path: DeepKE/src/deepke/relation_extraction/few_shot/dataset/base_data_module.py
imports: from torch.utils.data import DataLoader
  from torch import nn
label_desc: Use image node_id 2 for calling the BaseDataModule obj's underlying member method code with example usage: obj.add_to_argparse(parser) and returns: parser