              title = serializers.CharField()
              comments = BlogPostCommentSerializer(source='blogpostcomment_set')
  
          self.serializer_class = BlogPostSerializer
  
      def test_reverse_relations(self):
          post = BlogPost.objects.create(title="Test blog post")
          post.blogpostcomment_set.create(text="I hate this blog post")
 
</s>
        self.comment_serializer_class = BlogPostCommentSerializer
              title = serializers.CharField()
              comments = BlogPostCommentSerializer(source='blogpostcomment_set')
  
        self.comment_serializer_class = BlogPostCommentSerializer
          self.serializer_class = BlogPostSerializer
  
      def test_reverse_relations(self):
          post = BlogPost.objects.create(title="Test blog post")
          post.blogpostcomment_set.create(text="I hate this blog post")
keep keep add keep keep keep keep keep
 Fix related serializers with source argument that resolves to a callable
rest_framework/tests/serializer.py