code: def _pretty_serialized_items(self) -> Dict[int, Item]:
      out = {}
      for key, value in self._serialized_items.items():
          # drop `data` as it would make logs unreadable.
          out[key] = Item(
              index=value.index,
              bytes=value.bytes,
              dim=value.dim,
              data=b"",
          )
      return out
  
imports: import json
  import os
  import warnings
  from dataclasses import dataclass
  from time import sleep
  from typing import Any, Dict, List, Optional, Tuple, Union
  import numpy
  import torch
  from lightning.data.streaming.compression import _COMPRESSORS, Compressor
  from lightning.data.streaming.constants import _INDEX_FILENAME, _TORCH_GREATER_EQUAL_2_1_0
  from lightning.data.streaming.serializers import Serializer, _get_serializers
  from lightning.data.utilities.env import _DistributedEnv, _WorkerEnv
  from lightning.data.utilities.format import _convert_bytes_to_int, _human_readable_bytes
label_desc: Use image node_id 19 for calling the BinaryWriter obj's underlying member method code with example usage: obj._pretty_serialized_items() and returns: out