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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def resend_presence(self):
 """ Re-send the currently configured presence. :return: Stanza token of the presence stanza or :data:`None` if the stream is not established. :rtype: :class:`~.stream.StanzaToken` .. note:: :meth:`set_presence` automatically broadcasts the new presence if any of the parameters changed. """


        if self.client.established:
            return self.client.enqueue(self.make_stanza())