code: def _download_movielens(dest_path):
      """
      Download the dataset.
      """
  
      url = "http://files.grouplens.org/datasets/movielens/ml-100k.zip"
      req = requests.get(url, stream=True)
  
      with open(dest_path, "wb") as fd:
          for chunk in req.iter_content():
              fd.write(chunk)
  
file_path: lightfm/examples/movielens/data.py
imports: import itertools
  import os
  import zipfile
  import numpy
  import requests
  import scipy.sparse
label_desc: Use image node_id 2 for calling a global function with example usage: _download_movielens(dest_path) without return types