code: def get_dataset(which, baseurl="http://ann-benchmarks.com/"):
      hdf5_fn = get_dataset_fn(which)
      try:
          url = "%s%s.hdf5" % (baseurl, which)
          download(url, hdf5_fn)
      except:
          raise IOError("Cannot download %s" % url)
  
imports: import os
  import argparse
label_desc: Use image node_id 3 for calling a global function with example usage: get_dataset(which, baseurl) without return types