code: def download_dataset(root: str):
      """
      Download the iWildCam2020 dataset
      URL taken from:
      https://github.com/p-lambda/wilds/blob/main/wilds/datasets/iwildcam_dataset.py
      """
      URL = "https://worksheets.codalab.org/rest/bundles/0x6313da2b204647e79a14b468131fcd64/contents/blob/"
      download_and_extract_archive(
          url=URL, download_root=root, filename="archive.tar.gz"
      )
  
file_path: vissl/extra_scripts/datasets/create_iwilds_cam_data_files.py
imports: import argparse
  import os
  import numpy
  import pandas
  from tqdm import tqdm
  from vissl.utils.download import download_and_extract_archive
  from vissl.utils.io import save_file
label_desc: Use image node_id 2 for calling a global function with example usage: download_dataset(root) without return types