[Twisted-Python] an easy twisted application question

okay, so if i've got a tap with the following updateApplication method: def updateApplication(app, config): app.registry = registry.Registry() ... ... and i want to access that app.registry attribute from an arbitrary location, how do i do it? i seem to remember hearing that there was only one instance of Application in a process, so does that mean that there's some (forgive the Java-speak) static method defined on the Application module that will get the current running instance? thanks in advance, -phil