def newnews(self, pattern, timestamp):
return [x for x in self.newnews_gen(pattern, timestamp)]<EOL>
NEWNEWS command.

        Retrieves a list of message-ids for articles created since the specified
        timestamp for newsgroups with names that match the given pattern. See
        newnews_gen() for more details.

        See <http://tools.ietf.org/html/rfc3977#section-7.4>

        Args:
            pattern: Glob matching newsgroups of intrest.
            timestamp: Datetime object giving 'created since' datetime.

        Returns:
            A list of message-ids as given by newnews_gen()