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