How to use the mediafile.ASFStorageStyle function in mediafile

MP4StorageStyle('----:com.apple.iTunes:DISCSUBTITLE'),
        StorageStyle('DISCSUBTITLE'),
        ASFStorageStyle('WM/SetSubTitle'),
    )
    encoder = MediaField(
        MP3StorageStyle('TENC'),
        MP4StorageStyle('\xa9too'),
        StorageStyle('ENCODEDBY'),
        StorageStyle('ENCODER'),
        ASFStorageStyle('WM/EncodedBy'),
    )
    script = MediaField(
        MP3DescStorageStyle(u'Script'),
        MP4StorageStyle('----:com.apple.iTunes:SCRIPT'),
        StorageStyle('SCRIPT'),
        ASFStorageStyle('WM/Script'),
    )
    language = MediaField(
        MP3StorageStyle('TLAN'),
        MP4StorageStyle('----:com.apple.iTunes:LANGUAGE'),
        StorageStyle('LANGUAGE'),
        ASFStorageStyle('WM/Language'),
    )
    country = MediaField(
        MP3DescStorageStyle(u'MusicBrainz Album Release Country'),
        MP4StorageStyle('----:com.apple.iTunes:MusicBrainz '
                        'Album Release Country'),
        StorageStyle('RELEASECOUNTRY'),
        ASFStorageStyle('MusicBrainz/Album Release Country'),
    )
    albumstatus = MediaField(
        MP3DescStorageStyle(u'MusicBrainz Album Status'),

MP3DescStorageStyle(u'MusicBrainz Artist Id'),
        MP4StorageStyle('----:com.apple.iTunes:MusicBrainz Artist Id'),
        StorageStyle('MUSICBRAINZ_ARTISTID'),
        ASFStorageStyle('MusicBrainz/Artist Id'),
    )
    mb_albumartistid = MediaField(
        MP3DescStorageStyle(u'MusicBrainz Album Artist Id'),
        MP4StorageStyle('----:com.apple.iTunes:MusicBrainz Album Artist Id'),
        StorageStyle('MUSICBRAINZ_ALBUMARTISTID'),
        ASFStorageStyle('MusicBrainz/Album Artist Id'),
    )
    mb_releasegroupid = MediaField(
        MP3DescStorageStyle(u'MusicBrainz Release Group Id'),
        MP4StorageStyle('----:com.apple.iTunes:MusicBrainz Release Group Id'),
        StorageStyle('MUSICBRAINZ_RELEASEGROUPID'),
        ASFStorageStyle('MusicBrainz/Release Group Id'),
    )

    # Acoustid fields.
    acoustid_fingerprint = MediaField(
        MP3DescStorageStyle(u'Acoustid Fingerprint'),
        MP4StorageStyle('----:com.apple.iTunes:Acoustid Fingerprint'),
        StorageStyle('ACOUSTID_FINGERPRINT'),
        ASFStorageStyle('Acoustid/Fingerprint'),
    )
    acoustid_id = MediaField(
        MP3DescStorageStyle(u'Acoustid Id'),
        MP4StorageStyle('----:com.apple.iTunes:Acoustid Id'),
        StorageStyle('ACOUSTID_ID'),
        ASFStorageStyle('Acoustid/Id'),
    )

ASFStorageStyle('WM/BeatsPerMinute'),
        out_type=int,
    )
    comp = MediaField(
        MP3StorageStyle('TCMP'),
        MP4BoolStorageStyle('cpil'),
        StorageStyle('COMPILATION'),
        ASFStorageStyle('WM/IsCompilation', as_type=bool),
        out_type=bool,
    )
    albumartist = MediaField(
        MP3StorageStyle('TPE2'),
        MP4StorageStyle('aART'),
        StorageStyle('ALBUM ARTIST'),
        StorageStyle('ALBUMARTIST'),
        ASFStorageStyle('WM/AlbumArtist'),
    )
    albumtype = MediaField(
        MP3DescStorageStyle(u'MusicBrainz Album Type'),
        MP4StorageStyle('----:com.apple.iTunes:MusicBrainz Album Type'),
        StorageStyle('RELEASETYPE'),
        StorageStyle('MUSICBRAINZ_ALBUMTYPE'),
        ASFStorageStyle('MusicBrainz/Album Type'),
    )
    label = MediaField(
        MP3StorageStyle('TPUB'),
        MP4StorageStyle('----:com.apple.iTunes:LABEL'),
        MP4StorageStyle('----:com.apple.iTunes:publisher'),
        MP4StorageStyle('----:com.apple.iTunes:Label', read_only=True),
        StorageStyle('LABEL'),
        StorageStyle('PUBLISHER'),  # Traktor
        ASFStorageStyle('WM/Publisher'),

StorageStyle('ALBUM'),
        ASFStorageStyle('WM/AlbumTitle'),
    )
    genres = ListMediaField(
        MP3ListStorageStyle('TCON'),
        MP4ListStorageStyle('\xa9gen'),
        ListStorageStyle('GENRE'),
        ASFStorageStyle('WM/Genre'),
    )
    genre = genres.single_field()

    lyricist = MediaField(
        MP3StorageStyle('TEXT'),
        MP4StorageStyle('----:com.apple.iTunes:LYRICIST'),
        StorageStyle('LYRICIST'),
        ASFStorageStyle('WM/Writer'),
    )
    composer = MediaField(
        MP3StorageStyle('TCOM'),
        MP4StorageStyle('\xa9wrt'),
        StorageStyle('COMPOSER'),
        ASFStorageStyle('WM/Composer'),
    )
    composer_sort = MediaField(
        MP3StorageStyle('TSOC'),
        MP4StorageStyle('soco'),
        StorageStyle('COMPOSERSORT'),
        ASFStorageStyle('WM/Composersortorder'),
    )
    arranger = MediaField(
        MP3PeopleStorageStyle('TIPL', involvement='arranger'),
        MP4StorageStyle('----:com.apple.iTunes:Arranger'),

MP3StorageStyle('TDRC'),
        MP4StorageStyle('\xa9day'),
        StorageStyle('DATE'),
        ASFStorageStyle('WM/Year'),
        year=(StorageStyle('YEAR'),))

    year = date.year_field()
    month = date.month_field()
    day = date.day_field()

    # *Original* release date.
    original_date = DateField(
        MP3StorageStyle('TDOR'),
        MP4StorageStyle('----:com.apple.iTunes:ORIGINAL YEAR'),
        StorageStyle('ORIGINALDATE'),
        ASFStorageStyle('WM/OriginalReleaseYear'))

    original_year = original_date.year_field()
    original_month = original_date.month_field()
    original_day = original_date.day_field()

    # Nonstandard metadata.
    artist_credit = MediaField(
        MP3DescStorageStyle(u'Artist Credit'),
        MP4StorageStyle('----:com.apple.iTunes:Artist Credit'),
        StorageStyle('ARTIST_CREDIT'),
        ASFStorageStyle('beets/Artist Credit'),
    )
    albumartist_credit = MediaField(
        MP3DescStorageStyle(u'Album Artist Credit'),
        MP4StorageStyle('----:com.apple.iTunes:Album Artist Credit'),
        StorageStyle('ALBUMARTIST_CREDIT'),

StorageStyle('LANGUAGE'),
        ASFStorageStyle('WM/Language'),
    )
    country = MediaField(
        MP3DescStorageStyle(u'MusicBrainz Album Release Country'),
        MP4StorageStyle('----:com.apple.iTunes:MusicBrainz '
                        'Album Release Country'),
        StorageStyle('RELEASECOUNTRY'),
        ASFStorageStyle('MusicBrainz/Album Release Country'),
    )
    albumstatus = MediaField(
        MP3DescStorageStyle(u'MusicBrainz Album Status'),
        MP4StorageStyle('----:com.apple.iTunes:MusicBrainz Album Status'),
        StorageStyle('RELEASESTATUS'),
        StorageStyle('MUSICBRAINZ_ALBUMSTATUS'),
        ASFStorageStyle('MusicBrainz/Album Status'),
    )
    media = MediaField(
        MP3StorageStyle('TMED'),
        MP4StorageStyle('----:com.apple.iTunes:MEDIA'),
        StorageStyle('MEDIA'),
        ASFStorageStyle('WM/Media'),
    )
    albumdisambig = MediaField(
        # This tag mapping was invented for beets (not used by Picard, etc).
        MP3DescStorageStyle(u'MusicBrainz Album Comment'),
        MP4StorageStyle('----:com.apple.iTunes:MusicBrainz Album Comment'),
        StorageStyle('MUSICBRAINZ_ALBUMCOMMENT'),
        ASFStorageStyle('MusicBrainz/Album Comment'),
    )

    # Release date.

ASFStorageStyle(
            u'R128_TRACK_GAIN'
        ),
    )
    r128_album_gain = QNumberField(
        8,
        MP3DescStorageStyle(
            u'R128_ALBUM_GAIN'
        ),
        MP4StorageStyle(
            '----:com.apple.iTunes:R128_ALBUM_GAIN'
        ),
        StorageStyle(
            u'R128_ALBUM_GAIN'
        ),
        ASFStorageStyle(
            u'R128_ALBUM_GAIN'
        ),
    )

    initial_key = MediaField(
        MP3StorageStyle('TKEY'),
        MP4StorageStyle('----:com.apple.iTunes:initialkey'),
        StorageStyle('INITIALKEY'),
        ASFStorageStyle('INITIALKEY'),
    )

    @property
    def length(self):
        """The duration of the audio in seconds (a float)."""
        return self.mgfile.info.length

MP4StorageStyle('----:com.apple.iTunes:Label', read_only=True),
        StorageStyle('LABEL'),
        StorageStyle('PUBLISHER'),  # Traktor
        ASFStorageStyle('WM/Publisher'),
    )
    artist_sort = MediaField(
        MP3StorageStyle('TSOP'),
        MP4StorageStyle('soar'),
        StorageStyle('ARTISTSORT'),
        ASFStorageStyle('WM/ArtistSortOrder'),
    )
    albumartist_sort = MediaField(
        MP3DescStorageStyle(u'ALBUMARTISTSORT'),
        MP4StorageStyle('soaa'),
        StorageStyle('ALBUMARTISTSORT'),
        ASFStorageStyle('WM/AlbumArtistSortOrder'),
    )
    asin = MediaField(
        MP3DescStorageStyle(u'ASIN'),
        MP4StorageStyle('----:com.apple.iTunes:ASIN'),
        StorageStyle('ASIN'),
        ASFStorageStyle('MusicBrainz/ASIN'),
    )
    catalognum = MediaField(
        MP3DescStorageStyle(u'CATALOGNUMBER'),
        MP4StorageStyle('----:com.apple.iTunes:CATALOGNUMBER'),
        StorageStyle('CATALOGNUMBER'),
        ASFStorageStyle('WM/CatalogNo'),
    )
    barcode = MediaField(
        MP3DescStorageStyle(u'BARCODE'),
        MP4StorageStyle('----:com.apple.iTunes:BARCODE'),

)
    albumtype = MediaField(
        MP3DescStorageStyle(u'MusicBrainz Album Type'),
        MP4StorageStyle('----:com.apple.iTunes:MusicBrainz Album Type'),
        StorageStyle('RELEASETYPE'),
        StorageStyle('MUSICBRAINZ_ALBUMTYPE'),
        ASFStorageStyle('MusicBrainz/Album Type'),
    )
    label = MediaField(
        MP3StorageStyle('TPUB'),
        MP4StorageStyle('----:com.apple.iTunes:LABEL'),
        MP4StorageStyle('----:com.apple.iTunes:publisher'),
        MP4StorageStyle('----:com.apple.iTunes:Label', read_only=True),
        StorageStyle('LABEL'),
        StorageStyle('PUBLISHER'),  # Traktor
        ASFStorageStyle('WM/Publisher'),
    )
    artist_sort = MediaField(
        MP3StorageStyle('TSOP'),
        MP4StorageStyle('soar'),
        StorageStyle('ARTISTSORT'),
        ASFStorageStyle('WM/ArtistSortOrder'),
    )
    albumartist_sort = MediaField(
        MP3DescStorageStyle(u'ALBUMARTISTSORT'),
        MP4StorageStyle('soaa'),
        StorageStyle('ALBUMARTISTSORT'),
        ASFStorageStyle('WM/AlbumArtistSortOrder'),
    )
    asin = MediaField(
        MP3DescStorageStyle(u'ASIN'),
        MP4StorageStyle('----:com.apple.iTunes:ASIN'),

StorageStyle('COMMENT'),
        ASFStorageStyle('WM/Comments'),
        ASFStorageStyle('Description')
    )
    bpm = MediaField(
        MP3StorageStyle('TBPM'),
        MP4StorageStyle('tmpo', as_type=int),
        StorageStyle('BPM'),
        ASFStorageStyle('WM/BeatsPerMinute'),
        out_type=int,
    )
    comp = MediaField(
        MP3StorageStyle('TCMP'),
        MP4BoolStorageStyle('cpil'),
        StorageStyle('COMPILATION'),
        ASFStorageStyle('WM/IsCompilation', as_type=bool),
        out_type=bool,
    )
    albumartist = MediaField(
        MP3StorageStyle('TPE2'),
        MP4StorageStyle('aART'),
        StorageStyle('ALBUM ARTIST'),
        StorageStyle('ALBUMARTIST'),
        ASFStorageStyle('WM/AlbumArtist'),
    )
    albumtype = MediaField(
        MP3DescStorageStyle(u'MusicBrainz Album Type'),
        MP4StorageStyle('----:com.apple.iTunes:MusicBrainz Album Type'),
        StorageStyle('RELEASETYPE'),
        StorageStyle('MUSICBRAINZ_ALBUMTYPE'),
        ASFStorageStyle('MusicBrainz/Album Type'),
    )