The dispatcher on which to re-dispatch events.
The readonly event host that emits the events to be re-dispatched.
The event types from eventHost to delegate to the dispatcher. These are the keys in the event map that should be delegated.
Returns a method that when invoked, will unsubscribe from all delegated events.
Listens to an event host for a list of events, re-dispatching those events on this target dispatcher. Useful for event delegation.