@Override
    public String toString() {
        return new StringJoiner(", ", CreateNotificationFilterDto.class.getSimpleName() + "[", "]")
                .add("source='" + source + "'")
                .add("notificationType=" + notificationType)
                .add("expression='" + expression + "'")
                .add("enabled=" + enabled)
                .add("message='" + message + "'")
                .toString();
    }
@author Marc Savy {@literal <marc@blackparrotlabs.io>}
manager/api/beans/src/main/java/io/apiman/manager/api/beans/notifications/dto/CreateNotificationFilterDto.java