code: def yield_pile(start_offsets=None, checkpoint_offset=None):
      directory = "pile"
  
      if not os.path.exists(directory):
          print(
              "We expect the pile archives to be in the 'pile' directory, but this was not found."
          )
          raise Exception("Pile directory not found.")
  
      files = list(
          sorted(glob.glob(os.path.join(directory, "*.jsonl.zst*")))
      )
  
      pile_global_offset = 0
      start_file = 0
      if checkpoint_offset:
          for file_i, start_offset in enumerate(start_offsets):
              if start_offset > checkpoint_offset:
                  break
  
              start_file = file_i
              pile_global_offset = start_offset
  
      for file_i, file in enumerate(files):
          if file_i < start_file:
              logger.info(f"Skipping file {file}")
              continue
          logger.info(f"Reading from pile file: {file}")
          reader = Reader()
          for document in reader.read(file):
              yield (pile_global_offset, document)
              pile_global_offset += 1
  
imports: import argparse
  import json
  import pickle
  import os
  import sys
  from pathlib import Path
  import glob
  import signal
  from signal import SIGINT
  from tqdm import tqdm
  from lm_eval.decontamination.janitor import Janitor, word_ngrams
  from lm_eval.decontamination.archiver import TextArchive, Reader
  import logging
  from tqdm_multiprocess.logger import setup_logger_tqdm
label_desc: Use image node_id 2 for calling a global function with example usage: yield_pile(start_offsets, checkpoint_offset) without return types