def extract() -> None:
    try:
        os.mkdir(os.path.join(cd, 'ttsdk'))
    except FileExistsError:
        shutil.rmtree(os.path.join(cd, 'ttsdk'))
        os.mkdir(os.path.join(cd, 'ttsdk'))
    patoolib.extract_archive(os.path.join(cd, 'ttsdk.7z'), outdir=os.path.join(cd, 'ttsdk'))
def extract() -> None:
    try:
        os.mkdir(os.path.join(cd, 'ttsdk'))
    except FileExistsError:
        shutil.rmtree(os.path.join(cd, 'ttsdk'))
        os.mkdir(os.path.join(cd, 'ttsdk'))
    patoolib.extract_archive(os.path.join(cd, 'ttsdk.7z'), outdir=os.path.join(cd, 'ttsdk'))