src/main/java/org/intellimate/izou/sdk/frameworks/permanentSoundOutput/events/EndedEvent.java
public static Optional<EndedEvent> createEndedEvent(Identification source) {
        try {
            EndedEvent stopRequest = new EndedEvent(source);
            return Optional.of(stopRequest);
        } catch (IllegalArgumentException e) {
            return Optional.empty();
        }
    }
public static Optional<EndedEvent> createEndedEvent(Identification source) {
        try {
            EndedEvent stopRequest = new EndedEvent(source);
            return Optional.of(stopRequest);
        } catch (IllegalArgumentException e) {
            return Optional.empty();
        }
    }
creates a new EndedEvent
@param source the caller
@return the optional StartMusicRequest