Chainable "tagger object" documentation

Under "Controlling Tags", there is the phrase "Some functions are chainable (returns a Tagger object), and can be used to move the data around outside of the plugin"

It would be really nice to see some sort of example of this in the documentation / example files as I'm trying to join this rather nice tagging plugin to database functionality (i.e. an ajax call to a database)

Thanks!
