code: def download(datapath):
      """
      Download the model.
      """
      opt = {
          "datapath": datapath,
          "model_type": "transresnet_multimodal",
      }
      fnames = ["transresnet_multimodal.tgz"]
      download_models(opt, fnames, "image_chat")
  
label_desc: Use image node_id 1 for calling a global function with example usage: download(datapath) without return types