<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def purge(self, jid, node):
 """ Delete all items from a node. :param jid: JID of the PubSub service :param node: Name of the PubSub node :type node: :class:`str` Requires :attr:`.xso.Feature.PURGE`. """


        iq = aioxmpp.stanza.IQ(
            type_=aioxmpp.structs.IQType.SET,
            to=jid,
            payload=pubsub_xso.OwnerRequest(
                pubsub_xso.OwnerPurge(
                    node
                )
            )
        )

        yield from self.client.send(iq)