code: def custom_get_cache_key(*args, **kwargs):
      # return key to use for your cache:
      key = (
          kwargs.get("model", "")
          + str(kwargs.get("messages", ""))
          + str(kwargs.get("temperature", ""))
          + str(kwargs.get("logit_bias", ""))
      )
      return key
  
imports: import sys, os, uuid
  import time
  import traceback
  from dotenv import load_dotenv
  import os
  import pytest
  import litellm
  from litellm import embedding, completion
  from litellm.caching import Cache
  import random
  import hashlib
  import random
  import string
label_desc: Use image node_id 13 for calling a global function with example usage: custom_get_cache_key() and returns: key