Caching and offline storage for models?

Is there a way to cache data or use local storage for the models? The ToDo sample has some LocalStorage property on the model, but can't find this in the documentation: https://github.com/addyosmani/todomvc/blob/gh-pages/architecture-examples/canjs/js/models/todo.js. I was hoping for something like AmplifyJS or maybe a better way to do this.