code: def get_datamodule(
      self, cfg: VideoClassificationDataModuleConf
  ) -> Any:
      test_data_module = instantiate(
          cfg,
          _recursive_=False,
      )
      return test_data_module
  
file_path: pytorchvideo/pytorchvideo_trainer/tests/test_task_module_all.py
imports: import unittest
  from typing import Any
  import hydra
  from hydra import compose, initialize_config_module
  from hydra.utils import instantiate
  from omegaconf import OmegaConf
  from pytorch_lightning import Trainer
  from pytorchvideo_trainer.datamodule.datamodule import VideoClassificationDataModuleConf
  from pytorchvideo_trainer.train_app import VideoClassificationTrainAppConf
  from util import create_small_kinetics_dataset, run_locally, tempdir
label_desc: Use image node_id 1 for calling the TestMain obj's underlying member method code with example usage: obj.get_datamodule(cfg) and returns: test_data_module