def METHOD_NAME(self):
    cmd = ui.Subcommand('info', help='show file metadata')
    cmd.func = self.run
    cmd.parser.add_option(
        '-l', '--library', action='store_true',
        help='show library fields instead of tags',
    )
    cmd.parser.add_option(
        '-a', '--album', action='store_true',
        help='show album fields instead of tracks (implies "--library")',
    )
    cmd.parser.add_option(
        '-s', '--summarize', action='store_true',
        help='summarize the tags of all files',
    )
    cmd.parser.add_option(
        '-i', '--include-keys', default=[],
        action='append', dest='included_keys',
        help='comma separated list of keys to show',
    )
    cmd.parser.add_option(
        '-k', '--keys-only', action='store_true',
        help='show only the keys',
    )
    cmd.parser.add_format_option(target='item')
    return [cmd]