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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 init_atom_feed(self, feed):
 """ Initializing an atom feed `feedgen.feed.FeedGenerator` given a feed object :param feed: a feed object :return: an atom feed `feedgen.feed.FeedGenerator` """

        atom_feed = FeedGenerator()
        atom_feed.id(id=self.request.route_url(self.get_atom_feed_url, id=feed.id))
        atom_feed.link(href=self.request.route_url(self.get_atom_feed_url, id=feed.id), rel='self')
        atom_feed.language('nl-BE')
        self.link_to_sibling(feed, 'previous', atom_feed)
        self.link_to_sibling(feed, 'next', atom_feed)
        return atom_feed