Indentation problem in method perform_create in class PostViewSet

[heniotierra]

class PostViewSet(viewsets.ModelViewSet):
    queryset = Post.objects.order_by('-created_at')
    serializer_class = PostSerializer

    def get_permissions(self):
        if self.request.method in permissions.SAFE_METHODS:
            return (permissions.AllowAny(),)
        return (permissions.IsAuthenticated(), IsAuthorOfPost(),)

def perform_create(self, serializer):
    instance = serializer.save(author=self.request.user)

    return super(PostViewSet, self).perform_create(serializer)