How to use the tinytag.tinytag.Wma function in tinytag

def _parse_tag(self, fh):
        self.__tag_parsed = True
        guid = fh.read(16)  # 128 bit GUID
        if guid != b'0&\xb2u\x8ef\xcf\x11\xa6\xd9\x00\xaa\x00b\xcel':
            return  # not a valid ASF container! see: http://www.garykessler.net/library/file_sigs.html
        struct.unpack('Q', fh.read(8))[0]  # size
        struct.unpack('I', fh.read(4))[0]  # obj_count
        if fh.read(2) != b'\x01\x02':
            # http://web.archive.org/web/20131203084402/http://msdn.microsoft.com/en-us/library/bb643323.aspx#_Toc521913958
            return  # not a valid asf header!
        while True:
            object_id = fh.read(16)
            object_size = _bytes_to_int_le(fh.read(8))
            if object_size == 0 or object_size > self.filesize:
                break  # invalid object, stop parsing.
            if object_id == Wma.ASF_CONTENT_DESCRIPTION_OBJECT:
                len_blocks = self.read_blocks(fh, [
                    ('title_length', 2, True),
                    ('author_length', 2, True),
                    ('copyright_length', 2, True),
                    ('description_length', 2, True),
                    ('rating_length', 2, True),
                ])
                data_blocks = self.read_blocks(fh, [
                    ('title', len_blocks['title_length'], False),
                    ('artist', len_blocks['author_length'], False),
                    ('', len_blocks['copyright_length'], True),
                    ('comment', len_blocks['description_length'], False),
                    ('', len_blocks['rating_length'], True),
                ])
                for field_name, bytestring in data_blocks.items():
                    if field_name:

('author_length', 2, True),
                    ('copyright_length', 2, True),
                    ('description_length', 2, True),
                    ('rating_length', 2, True),
                ])
                data_blocks = self.read_blocks(fh, [
                    ('title', len_blocks['title_length'], False),
                    ('artist', len_blocks['author_length'], False),
                    ('', len_blocks['copyright_length'], True),
                    ('comment', len_blocks['description_length'], False),
                    ('', len_blocks['rating_length'], True),
                ])
                for field_name, bytestring in data_blocks.items():
                    if field_name:
                        self._set_field(field_name, bytestring, self.__decode_string)
            elif object_id == Wma.ASF_EXTENDED_CONTENT_DESCRIPTION_OBJECT:
                mapping = {
                    'WM/TrackNumber': 'track',
                    'WM/PartOfSet': 'disc',
                    'WM/Year': 'year',
                    'WM/AlbumArtist': 'albumartist',
                    'WM/Genre': 'genre',
                    'WM/AlbumTitle': 'album',
                    'WM/Composer': 'composer',
                }
                # see: http://web.archive.org/web/20131203084402/http://msdn.microsoft.com/en-us/library/bb643323.aspx#_Toc509555195
                descriptor_count = _bytes_to_int_le(fh.read(2))
                for _ in range(descriptor_count):
                    name_len = _bytes_to_int_le(fh.read(2))
                    name = self.__decode_string(fh.read(name_len))
                    value_type = _bytes_to_int_le(fh.read(2))
                    value_len = _bytes_to_int_le(fh.read(2))

'WM/AlbumTitle': 'album',
                    'WM/Composer': 'composer',
                }
                # see: http://web.archive.org/web/20131203084402/http://msdn.microsoft.com/en-us/library/bb643323.aspx#_Toc509555195
                descriptor_count = _bytes_to_int_le(fh.read(2))
                for _ in range(descriptor_count):
                    name_len = _bytes_to_int_le(fh.read(2))
                    name = self.__decode_string(fh.read(name_len))
                    value_type = _bytes_to_int_le(fh.read(2))
                    value_len = _bytes_to_int_le(fh.read(2))
                    value = fh.read(value_len)
                    field_name = mapping.get(name)
                    if field_name:
                        field_value = self.__decode_ext_desc(value_type, value)
                        self._set_field(field_name, field_value)
            elif object_id == Wma.ASF_FILE_PROPERTY_OBJECT:
                blocks = self.read_blocks(fh, [
                    ('file_id', 16, False),
                    ('file_size', 8, False),
                    ('creation_date', 8, True),
                    ('data_packets_count', 8, True),
                    ('play_duration', 8, True),
                    ('send_duration', 8, True),
                    ('preroll', 8, True),
                    ('flags', 4, False),
                    ('minimum_data_packet_size', 4, True),
                    ('maximum_data_packet_size', 4, True),
                    ('maximum_bitrate', 4, False),
                ])
                self.duration = blocks.get('play_duration') / float(10000000)
            elif object_id == Wma.ASF_STREAM_PROPERTIES_OBJECT:
                blocks = self.read_blocks(fh, [

('maximum_data_packet_size', 4, True),
                    ('maximum_bitrate', 4, False),
                ])
                self.duration = blocks.get('play_duration') / float(10000000)
            elif object_id == Wma.ASF_STREAM_PROPERTIES_OBJECT:
                blocks = self.read_blocks(fh, [
                    ('stream_type', 16, False),
                    ('error_correction_type', 16, False),
                    ('time_offset', 8, True),
                    ('type_specific_data_length', 4, True),
                    ('error_correction_data_length', 4, True),
                    ('flags', 2, True),
                    ('reserved', 4, False)
                ])
                already_read = 0
                if blocks['stream_type'] == Wma.STREAM_TYPE_ASF_AUDIO_MEDIA:
                    stream_info = self.read_blocks(fh, [
                        ('codec_id_format_tag', 2, True),
                        ('number_of_channels', 2, True),
                        ('samples_per_second', 4, True),
                        ('avg_bytes_per_second', 4, True),
                        ('block_alignment', 2, True),
                        ('bits_per_sample', 2, True),
                    ])
                    self.samplerate = stream_info['samples_per_second']
                    self.bitrate = stream_info['avg_bytes_per_second'] * 8 / float(1000)
                    already_read = 16
                fh.seek(blocks['type_specific_data_length'] - already_read, os.SEEK_CUR)
                fh.seek(blocks['error_correction_data_length'], os.SEEK_CUR)
            else:
                fh.seek(object_size - 24, os.SEEK_CUR)  # read over onknown object ids

elif object_id == Wma.ASF_FILE_PROPERTY_OBJECT:
                blocks = self.read_blocks(fh, [
                    ('file_id', 16, False),
                    ('file_size', 8, False),
                    ('creation_date', 8, True),
                    ('data_packets_count', 8, True),
                    ('play_duration', 8, True),
                    ('send_duration', 8, True),
                    ('preroll', 8, True),
                    ('flags', 4, False),
                    ('minimum_data_packet_size', 4, True),
                    ('maximum_data_packet_size', 4, True),
                    ('maximum_bitrate', 4, False),
                ])
                self.duration = blocks.get('play_duration') / float(10000000)
            elif object_id == Wma.ASF_STREAM_PROPERTIES_OBJECT:
                blocks = self.read_blocks(fh, [
                    ('stream_type', 16, False),
                    ('error_correction_type', 16, False),
                    ('time_offset', 8, True),
                    ('type_specific_data_length', 4, True),
                    ('error_correction_data_length', 4, True),
                    ('flags', 2, True),
                    ('reserved', 4, False)
                ])
                already_read = 0
                if blocks['stream_type'] == Wma.STREAM_TYPE_ASF_AUDIO_MEDIA:
                    stream_info = self.read_blocks(fh, [
                        ('codec_id_format_tag', 2, True),
                        ('number_of_channels', 2, True),
                        ('samples_per_second', 4, True),
                        ('avg_bytes_per_second', 4, True),

def _get_parser_for_filename(cls, filename, exception=False):
        mapping = {
            ('.mp3',): ID3,
            ('.oga', '.ogg', '.opus'): Ogg,
            ('.wav',): Wave,
            ('.flac',): Flac,
            ('.wma',): Wma,
            ('.m4b', '.m4a', '.mp4'): MP4,
        }
        for fileextension, tagclass in mapping.items():
            if filename.lower().endswith(fileextension):
                return tagclass
        if exception:
            raise TinyTagException('No tag reader found to support filetype! ')