class Article(models.Model):
	name = models.CharField(max_length=100)


class Post(models.Model):
	is_published = models.BooleanField(default=False)
  article = models.ForeignKey(Article, related_name='posts')


print(Article.objects.prefetch_related(
		Prefetch(
			'posts', 
    	queryset=Post.objects.filter(is_consider=False).annotate( ... ), 
    	to_attr='annotated_posts'
    )
)

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