code: def _read_raw_data(path):
      
  
      with zipfile.ZipFile(path) as datafile:
          return (
              datafile.read("ml-100k/ua.base").decode().split("\n"),
              datafile.read("ml-100k/ua.test").decode().split("\n"),
              datafile.read("ml-100k/u.item").decode(errors="ignore").split("\n"),
              datafile.read("ml-100k/u.genre").decode(errors="ignore").split("\n"),
          )
docs: Return the raw lines of the train and test files.