code: def parse_args():
      parser = ArgumentParser(description="Prepare data.")
      parser.add_argument(
          "--data_dir", type=Path, help="Path to raw data."
      )
      parser.add_argument(
          "--prefix",
          type=str,
          help="Prefix that will be added to utt id.",
      )
      parser.add_argument(
          "--output_dir",
          type=Path,
          help="Path to save the output data.",
      )
      parser.add_argument(
          "--splits",
          type=str,
          nargs="+",
          default=["DEV", "L"],
          help="Data splits to prepare.",
      )
  
      args = parser.parse_args()
      return args
  
file_path: espnet/egs2/owsm_v2/s2t1/local/prepare_wenetspeech.py
imports: import json
  from argparse import ArgumentParser
  from collections import defaultdict
  from pathlib import Path
  from typing import Dict, List, Optional, Tuple, Union
  from utils import SYMBOL_NA, SYMBOL_NOSPEECH, SYMBOLS_TIME, LongUtterance, Utterance, generate_long_utterances
label_desc: Use image node_id 3 for calling a global function with example usage: parse_args() and returns: args