@ServiceInterface public interface FsManagerDecorator extends java.util.function.UnaryOperator<FsManager>
ServiceImplementation are subject to service location by the
FsManagerLocator.SINGLETON.
If multiple decorator services are locatable on the class path at run time, they are applied in ascending order of their ServiceImplementation.priority() so that the product of the decorator service with the greatest number becomes the head of the resulting decorator chain.