class_docstr: OpenLORIS Pytorch Dataset
code: def _download_error_message(self) -> str:
      base_url = openloris_data.base_gdrive_url
      all_urls = [
          base_url + name_url[1]
          for name_url in openloris_data.avl_vps_data
      ]
  
      base_msg = (
          "[OpenLoris] Direct download may no longer be supported!\n"
          "You should download data manually using the following links:\n"
      )
  
      for url in all_urls:
          base_msg += url
          base_msg += "\n"
  
      base_msg += "and place these files in " + str(self.root)
  
      return base_msg
  
file_path: avalanche/avalanche/benchmarks/datasets/openloris/openloris.py
imports: import pickle
  from pathlib import Path
  from typing import Optional, Union
  from torchvision.datasets.folder import default_loader
  from torchvision.transforms import ToTensor
  from avalanche.benchmarks.datasets import DownloadableDataset, default_dataset_location
  from avalanche.benchmarks.datasets.openloris import openloris_data
label_desc: Use image node_id 4 for calling the OpenLORIS obj's underlying member method code with example usage: obj._download_error_message() and returns: base_msg