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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 announce(self, discovery):
 """ With the passed in Discovery class, attempt to announce to the host agent. """

        try:
            url = self.__discovery_url()
            logger.debug("making announce request to %s" % (url))
            response = None
            response = self.client.put(url,
                                       data=self.to_json(discovery),
                                       headers={"Content-Type": "application/json"},
                                       timeout=0.8)

            if response.status_code is 200:
                self.last_seen = datetime.now()
        except (requests.ConnectTimeout, requests.ConnectionError):
            logger.debug("announce", exc_info=True)
        finally:
            return response