code: def register_model():
      if not st.session_state.started:
          server_state_container.caption(
              "TorchServe is not running. Start it"
          )
          return
      url = (
          f"http://localhost:8081/models?model_name={MODEL_NAME}&url={MODEL_NAME}"
          f".tar.gz&initial_workers=1&synchronous=true"
      )
      _register_model(url)
  
file_path: serve/examples/LLM/llama2/chat_app/torchserve_server_app.py
imports: import json
  import os
  import requests
  import streamlit
label_desc: Use image node_id 4 for calling a global function with example usage: register_model() without return types