code: def flush_cache(self):
      self.redis_client.flushall()
  
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 4 for calling the RedisCache obj's underlying member method code with example usage: obj.flush_cache() without return types