code: def generate_random_word(length=4):
      import string, random
  
      letters = string.ascii_lowercase
      return "".join(random.choice(letters) for _ in range(length))
  
file_path: litellm/litellm/tests/test_proxy_server_caching.py
imports: import sys, os
  import traceback
  from dotenv import load_dotenv
  import os, io
  import pytest, logging, asyncio
  import litellm
  from litellm import embedding, completion, completion_cost, Timeout
  from litellm import RateLimitError
  from fastapi.testclient import TestClient
  from fastapi import FastAPI
  from litellm.proxy.proxy_server import router, save_worker_config, initialize
label_desc: Use image node_id 2 for calling a global function with example usage: generate_random_word(length) and returns: str