code: def process_chunks(
      self, chunks: List[Chunk]
  ) -> Union[
      bool,
      "ProcessedChunk",
      "ProcessedBinaryChunk",
      List["ProcessedChunk"],
  ]:
      chunk_id = self._chunk_id
      self._chunk_id += len(chunks)
      return {"offset": chunk_id, "content": [c.data for c in chunks]}
  
imports: import base64
  import functools
  import itertools
  import logging
  import os
  import queue
  import random
  import sys
  import threading
  import time
  from types import TracebackType
  from typing import TYPE_CHECKING, Any, Callable, Dict, List, NamedTuple, Optional, Set, Tuple, Type, Union
  import requests
  import wandb
  from wandb import util
  from wandb.sdk.internal import internal_api
  from ..lib import file_stream_utils
label_desc: Use image node_id 2 for calling the DefaultFilePolicy obj's underlying member method code with example usage: obj.process_chunks(chunks) and returns: dict