class_docstr: Base DataModule.
code: def val_dataloader(self):
      return DataLoader(
          self.data_val,
          shuffle=False,
          batch_size=self.batch_size,
          num_workers=self.num_workers,
          drop_last=True,
      )
  
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 7 for calling the BaseDataModule obj's underlying member method code with example usage: obj.val_dataloader() and returns: DataLoader