code: def parse_args():
      parser = ArgumentParser(
          description="Chat with UForm generative model"
      )
  
      parser.add_argument(
          "--model", type=str, default="unum-cloud/uform-gen-chat"
      )
      parser.add_argument("--image", type=str, help="", required=True)
      parser.add_argument("--device", type=str, required=True)
      parser.add_argument("--fp16", action="store_true")
  
      return parser.parse_args()
  
file_path: uform/src/uform/chat.py
imports: from argparse import ArgumentParser
  import torch
  import requests
  from PIL import Image
  from transformers import TextStreamer
  from uform.gen_model import VLMForCausalLM, VLMProcessor
label_desc: Use image node_id 1 for calling a global function with example usage: parse_args() and returns: parser