code: def token_uri():
      return open_id_configuration(
          settings.MONAI_LABEL_AUTH_REALM_URI
      ).get("token_endpoint")
  
imports: import logging
  from typing import List, Sequence, Union
  import requests
  from cachetools import cached
  from fastapi import Depends, HTTPException, Security, status
  from fastapi.security import OAuth2PasswordBearer
  from jose import JWTError, jwt
  from passlib.context import CryptContext
  from pydantic import BaseModel
  from monailabel.config import settings
label_desc: Use image node_id 3 for calling a global function with example usage: token_uri() and returns: open_id_configuration