code: def app_reload_callback():
      for c in callback_map["callbacks_on_reload"]:
          try:
              c.callback()
          except Exception:
              report_exception(c, "callbacks_on_reload")
  
imports: import inspect
  import os
  from collections import namedtuple
  from typing import Optional, Any
  from fastapi import FastAPI
  from gradio import Blocks
  from modules import errors, timer
label_desc: Use image node_id 4 for calling a global function with example usage: app_reload_callback() without return types