code: def download_path():
      path = Path("tests").joinpath("test_data")
      path.mkdir(parents=True, exist_ok=True)
      return str(path)
  
file_path: pykale/tests/download_test_data.py
imports: from pathlib import Path
  from tdc.multi_pred import DTI
  from torchvision.datasets import CIFAR10, CIFAR100, MNIST, SVHN
  from kale.loaddata.mnistm import MNISTM
  from kale.loaddata.usps import USPS
  from kale.prepdata.image_transform import get_transform
  from kale.utils.download import download_file_by_url
label_desc: Use image node_id 1 for calling a global function with example usage: download_path() and returns: str