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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 get_queryset(self):
 """ Return a queryset containing published entries. """

        now = timezone.now()
        return super(
            EntryRelatedPublishedManager, self).get_queryset().filter(
            models.Q(entries__start_publication__lte=now) |
            models.Q(entries__start_publication=None),
            models.Q(entries__end_publication__gt=now) |
            models.Q(entries__end_publication=None),
            entries__status=PUBLISHED,
            entries__sites=Site.objects.get_current()
            ).distinct()