code: def _is_langfuse_v2(self):
      import langfuse
  
      return Version(langfuse.version.__version__) >= Version("2.0.0")
  
file_path: litellm/litellm/integrations/langfuse.py
imports: import dotenv, os
  import requests
  import requests
  from datetime import datetime
  import traceback
  from packaging.version import Version
label_desc: Use image node_id 3 for calling the LangFuseLogger obj's underlying member method code with example usage: obj._is_langfuse_v2() and returns: unknown