code: def datetime_now():
      return datetime.datetime.utcnow().replace(tzinfo=pytz.utc)
  
file_path: aim/aim/web/api/utils.py
imports: import datetime
  import pytz
  from fastapi import APIRouter
  from fastapi import HTTPException
  from fastapi.types import DecoratedCallable
  from starlette.types import ASGIApp, Receive, Scope, Send
  from typing import Any, Callable
label_desc: Use image node_id 2 for calling a global function with example usage: datetime_now() and returns: datetime