I should add that this will not be at all the final implementation for Flask 0.10 in case I want to change that. If the change of the implementation will happe

I should add that this will not be at all the final implementation for Flask 0.10 in case I want to change that. If the change of the implementation will happen I will make itsdangerous (separate Python module) have a way to serialize the custom objects properly and then add this as a dependency.