Broadcast a message to users in the chatroom

def broadcast(self, body, html_body=None, exclude=()):
        """Broadcast a message to users in the chatroom"""
        logger.info('broadcast on %s: %s' % (self.name, body,))
        for member in filter(lambda m: m.get('STATUS') == 'ACTIVE' and m not in exclude, self.params['MEMBERS']):
            logger.debug(member['JID'])
            self.send_message(body, member, html_body=html_body, quiet=True)