public String toString() {
   return ObjectUtils.printFieldsDeep(this);
 }
 public String toString() {
   return "NotificationData: " + ObjectUtils.printFieldsDeep(this);
 }
 public String toString() {
   return "AddNodesResult: " + ObjectUtils.printFieldsDeep(this);
 }
 public String toString() {
   return "EndpointConfiguration: " + ObjectUtils.printFieldsDeep(this);
 }