'Replace the extended identity data for a JID/node combination.
The data parameter may provide:
data -- Either a single data form, or a list of data forms.'

def set_extended_info(self, jid, node, ifrom, data):

    with self.static.lock:
        self.del_extended_info(jid, node, ifrom, data)
        self.add_extended_info(jid, node, ifrom, data)
