docstr: Shutdown server (admin-only).
code: def shutdown(self, auth: Authentication):
      """Shutdown server (admin-only)."""
      params = {"auth": json.dumps(asdict(auth))}
      try:
          response = requests.get(
              f"{self.base_url}/api/shutdown?{urllib.parse.urlencode(params)}"
          ).json()
          RemoteService._check_response(response)
      except requests.exceptions.ConnectionError:
          # A ConnectionError is expected when shutting down the server.
          pass
  
imports: import argparse
  import json
  import requests
  import urllib.parse
  from dataclasses import asdict
  from typing import Any, List, Optional
  from helm.common.authentication import Authentication
  from helm.common.critique_request import CritiqueRequest, CritiqueRequestResult
  from helm.common.perspective_api_request import PerspectiveAPIRequest, PerspectiveAPIRequestResult
  from helm.common.tokenization_request import WindowServiceInfo, TokenizationRequest, TokenizationRequestResult, DecodeRequestResult, DecodeRequest
  from helm.common.request import Request, RequestResult
  from dacite import from_dict
  from helm.proxy.accounts import Account
  from helm.proxy.query import Query, QueryResult
  from .service import Service, GeneralInfo
label_desc: Use image node_id 17 for calling the RemoteService obj's underlying member method code with example usage: obj.shutdown(auth) without return types