The default read-only implementation of NotificationProviders.
The default read-only implementation of NotificationProviders. You typically should not need to directly reference this class; instead, use the NotificationProviders.apply method to construct new instances.
This Proxy trait allows you to extend the NotificationProviders trait with additional state or behavior and implement the read-only methods from NotificationProviders using an underlying instance.
Field information in declaration order.
Checks that all required fields are non-null.
Reference to a third-party service used to send notifications