code: def download(datapath):
      opt = {
          "datapath": datapath,
          "model_type": "biranker_dialogue",
      }  # for builder
      fnames = ["biranker_dialogue.tar.gz"]
      download_models(
          opt, fnames, "light", version="v0.5", use_model_type=True
      )
  
label_desc: Use image node_id 1 for calling a global function with example usage: download(datapath) without return types