code: def _unzip(
      file_path: Path, target_dir: Path, delete_old: bool = True
  ):
      if delete_old:
          logger.warning(
              f"will delete the old qlib data directory(features, instruments, calendars, features_cache, dataset_cache): {target_dir}"
          )
          GetData._delete_qlib_data(target_dir)
      logger.info(f"{file_path} unzipping......")
      with zipfile.ZipFile(str(file_path.resolve()), "r") as zp:
          for _file in tqdm(zp.namelist()):
              zp.extract(_file, str(target_dir.resolve()))
  
imports: import os
  import re
  import sys
  import qlib
  import shutil
  import zipfile
  import requests
  import datetime
  from tqdm import tqdm
  from pathlib import Path
  from loguru import logger
  from cryptography.fernet import Fernet
  from qlib.utils import exists_qlib_data
label_desc: Use image node_id 5 for calling the GetData obj's underlying member method code with example usage: obj._unzip(file_path, target_dir, delete_old) without return types