code: def test_dataloader(self) -> wds.DataPipeline:
      return create_loader(
          self.test_datapipeline, **self.test_config.loader
      )
  
file_path: generative-models/sgm/data/dataset.py
imports: from typing import Optional
  import torchdata.datapipes.iter
  import webdataset
  from omegaconf import DictConfig
  from pytorch_lightning import LightningDataModule
label_desc: Use image node_id 5 for calling the StableDataModuleFromConfig obj's underlying member method code with example usage: obj.test_dataloader() and returns: create_loader