def METHOD_NAME(datapath):
    dpath = os.path.join(datapath, 'OpenSubtitles')
    version = '2'
    if not build_data.built(dpath, version_string=version):
        print('[building data: ' + dpath + ']')
        if build_data.built(dpath):
            # An older version exists, so remove these outdated files.
            build_data.remove_dir(dpath)
        build_data.make_dir(dpath)
        # Download the data.
        for downloadable_file in RESOURCES:
            downloadable_file.download_file(dpath)
        create_fb_format(os.path.join(dpath, 'OpenSubtitles', 'en'), dpath)
        # Mark the data as built.
        build_data.mark_done(dpath, version_string=version)
    return dpath