def group(self, name):
        """GROUP command.
        """
        args = name

        code, message = self.command("GROUP", args)
        if code != 211:
            raise NNTPReplyError(code, message)

        parts = message.split(None, 4)
        try:
            total = int(parts[0])
            first = int(parts[1])
            last  = int(parts[2])
            group = parts[3]
        except (IndexError, ValueError):
            raise NNTPDataError("Invalid GROUP status '%s'" % message)

        return total, first, last, group
GROUP command.