Class SiteXsrfSecretKeyNDB

source code

NDB Model for storage for the sites XSRF secret key.

Since this model uses the same kind as SiteXsrfSecretKey, it can be used
interchangeably. This simply provides an NDB model for interacting with the
same data the DB model interacts with.

There should only be one instance stored of this model, the one used for the
site.