code: def __init__(self):
      # if users don't provider one, use the default litellm cache
      self.cache_dict = {}
      self.ttl_dict = {}
  
imports: import litellm
  import time, logging
  import json, traceback, ast, hashlib
  from typing import Optional, Literal, List, Union, Any
  from openai._models import BaseModel
label_desc: Use image node_id 1 to create a new InMemoryCache object from inherited base classes: BaseCache with example: obj = InMemoryCache()