Fix syntax error in script/download_datasets.py

from pathlib import Path

from pv211_utils.trec.loader import load_documents as trec_load_documents

from pv211_utils.arqmath.loader import load_answers as arqmath_load_answers, TEXT_FORMATS

def download_trec(root_directory: Path) -> None:

    from pv211_utils.trec.loader import load_documents

if __name__ == '__main__':

    pathname = str(root_directory/'trec_documents.json.gz')

    load_documents(cache_download=pathname)

def download_arqmath(root_directory: Path) -> None:

    from pv211_utils.arqmath.loader import load_answers, TEXT_FORMATS

    for text_format in TEXT_FORMATS:

        filename = str(root_directory/f'arqmath2020_answers_{text_format}.json.gz')

        load_answers(text_format, cache_download=filename)

def main() -> None:

    root_directory = Path('/var') / 'tmp' / 'pv211'

    root_directory.mkdir(parents=True, exist_ok=True)

    trec_load_documents(cache_download=str(root_directory/'trec_documents.json.gz'))

    for text_format in TEXT_FORMATS:

        arqmath_filename = str(root_directory/f'arqmath2020_answers_{text_format}.json.gz'

        arqmath_load_answers(text_format, cache_download=))

    download_trec(root_directory)

    download_arqmath(root_directory)

if __name__ == '__main__':

    main()