code: def __get_cached_checkpoint_filename():
      tid = threading.current_thread().ident
      checkpoint_filename = (
          PatchPyTorchModelIO._checkpoint_filename.get(tid)
      )
      return checkpoint_filename or None
  
imports: import sys
  import six
  import threading
  from pathlib2 import Path
  from ...binding.frameworks.base_bind import PatchBaseModelIO
  from ..frameworks import _patched_call, _patched_call_no_recursion_guard, WeightsFileHandler, _Empty
  from ..import_bind import PostImportHookPatching
  from ...config import running_remotely
  from ...model import Framework
label_desc: Use image node_id 10 for calling the PatchPyTorchModelIO obj's underlying member method code with example usage: obj.__get_cached_checkpoint_filename() and returns: unknown