get
Fetches an item for key. If no provider has been registered, this will delegate to ServiceLocator.onMiss.
A convenience extension to fetch a singleton instance from the ServiceLocator using its reified type T as the key.
This is equivalent to calling get(classKey<T>()). If no provider has been registered for T, this will delegate to the locator's onMiss behavior.
Receiver
The ServiceLocator to retrieve the service from.
Return
The singleton instance of type T.