code: def download_data():
      if not exists("eeg.dat"):
          url = "http://archive.ics.uci.edu/ml/machine-learning-databases/00264/EEG%20Eye%20State.arff"
          with open("eeg.dat", "wb") as f:
              f.write(urlopen(url).read())
  
file_path: pyro/examples/contrib/timeseries/gp_models.py
imports: import argparse
  from os.path import exists
  from urllib.request import urlopen
  import numpy
  import torch
  import pyro
  from pyro.contrib.timeseries import IndependentMaternGP, LinearlyCoupledMaternGP
label_desc: Use image node_id 1 for calling a global function with example usage: download_data() without return types