code: def is_project_session(self, session_uuid: str) -> bool:
      return session_uuid in self.sessions
  
imports: from typing import List, Dict, Union, Optional
  from labml_db import Model, Key, Index
  from .None import run
  from .None import session
  from ..logger import logger
label_desc: Use image node_id 3 for calling the Project obj's underlying member method code with example usage: obj.is_project_session(session_uuid) and returns: unknown