code: def setup_common_static_routes(routes):
      global _compiled
  
      if not _compiled:
          sass_compile("web_common")
          _compiled = True
      routes.static("/common_static", f"{WEB_COMMON_ROOT}/static")
  
file_path: hail/web_common/web_common/web_common.py
imports: import importlib
  import os
  from typing import Any, Dict, Optional
  import aiohttp_jinja2
  import aiohttp_session
  import jinja2
  import sass
  from aiohttp import web
  from gear import UserData, new_csrf_token
  from hailtop.config import get_deploy_config
label_desc: Use image node_id 3 for calling a global function with example usage: setup_common_static_routes(routes) without return types