code: def get_obj_size_bytes(obj, version, at: Optional[int] = None) -> int:
      return len(
          json.dumps(
              {"obj": obj.__dict__, "version": version, "at": at}
          )
      )
  
imports: import json
  import random
  import threading
  import unittest
  from glob import glob
  from pathlib import Path
  from tempfile import TemporaryDirectory
  from typing import Optional
  from unittest.mock import patch
  from neptune.internal.disk_queue import DiskQueue, QueueElement
label_desc: Use image node_id 1 for calling the TestDiskQueue obj's underlying member method code with example usage: obj.get_obj_size_bytes(obj, version, at) and returns: len