code: def delete_sessions(
      self, session_uuids: List[str], project_owner: str
  ) -> None:
      for session_uuid in session_uuids:
          if session_uuid in self.sessions:
              self.sessions.pop(session_uuid)
              s = session.get(session_uuid)
              if s and s.owner == project_owner:
                  try:
                      session.delete(session_uuid)
                  except TypeError:
                      logger.error(
                          f"error while deleting the session {session_uuid}"
                      )
  
      self.save()
  
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 7 for calling the Project obj's underlying member method code with example usage: obj.delete_sessions(session_uuids, project_owner) without return types