@Override
    default int getOrder() {
        return Ordered.HIGHEST_PRECEDENCE;
    }
This is {@link LogoutPostProcessor} that knows how to carry out specific operations upon logout events.
Example ops may include removing tickets from the registry, deleting cookies, sending events, etc.

@author Misagh Moayyed
@since 5.1.0
api/cas-server-core-api-logout/src/main/java/org/apereo/cas/logout/LogoutPostProcessor.java