code: def __setitem__(self, key, value):
      raise TypeError("'frozendict' object is immutable.")
  
imports: import asyncio
  import dataclasses
  import json
  import re
  import time
  from typing import Dict, List, Optional, Sequence, Tuple, Union, cast
  import httpstan.models
  import httpstan.schemas
  import httpstan.services.arguments
  import httpstan.utils
  import numpy
  import simdjson
  from clikit.io import ConsoleIO
  import stan.common
  import stan.fit
  import stan.plugins
label_desc: Use image node_id 1 for calling the frozendict obj's underlying member method code with example usage: obj.__setitem__(key, value) without return types