class PipWrapper {

  void searchDownloadInfo(Set<PipInstalledPackage> _packs, String _out) throws IOException {
    if (_packs != null) for (PipInstalledPackage pack : _packs) this.searchDownloadInfo(pack, _out);
  }

  public  PipWrapper();
  public  PipWrapper(Path _path_to_pip, Path _log_dir);

}