Can user workers define their own durable objects, e.g. `class UserDurableObject extends DurableObje
Can user workers define their own durable objects, e.g.
For instance, what if I wanted a user worker to receive emails. A standard worker would define an
class UserDurableObject extends DurableObject<Env>?For instance, what if I wanted a user worker to receive emails. A standard worker would define an
send_email binding. What would a secure setup look like where the email goes through the dispatch worker, and for any user worker supporting email, it would pass it on to be handled by the user worker?

