code: def _get_next_table_key(self):
      # or uuid?
      return f"{self._name}__table_persistent_{self._table_index}__"
  
imports: import io
  import logging
  import pickle
  import struct
  import typing
  from typing import Any, List, Tuple, TypeVar
  from fate.arch.config import cfg
  from ._table_meta import TableMeta
  from ._type import PartyMeta
label_desc: Use image node_id 2 for calling the TableRemotePersistentPickler obj's underlying member method code with example usage: obj._get_next_table_key() and returns: self, str, self, str