code: def unpack_archive(self) -> None:
      os.makedirs(self._temporary_directory, exist_ok=True)
      file_pointer = self._client.download(self._file_path)
      _unzip_file(
          fp=file_pointer, extract_dir=self._temporary_directory
      )
  
file_path: gokart/gokart/gcs_zip_client.py
imports: import os
  import shutil
  from gokart.gcs_config import GCSConfig
  from gokart.zip_client import ZipClient, _unzip_file
label_desc: Use image node_id 4 for calling the GCSZipClient obj's underlying member method code with example usage: obj.unpack_archive() without return types