@service
@service
(serviceName: string): PropertyDecorator
Property decorator: turns the decorated property of a managed object into a read-only reference to the last registered service with given name (case insensitive). See ManagedService.
The value of the decorated property becomes undefined when the service is destroyed, and updates immediately when a new service is registered with the same name.
Changes and events can be observed by an observer, but only after the property has been read at least once.