+ grouping base-node-error-notification {
+ leaf node {
+ ext:context-reference "inv:node-context";
+ type inv:node-ref;
+ }
+ }
+
+ grouping node-error-reference {
+ choice object-reference {
+ case flow-ref{
+ leaf flow-ref {
+ type types:flow-ref;
+ }
+ }
+ case group-ref{
+ leaf group-ref {
+ type group-type:group-ref;
+ }
+ }
+ case meter-ref{
+ leaf meter-ref {
+ type meter-type:meter-ref;
+ }
+ }
+ }
+ }
+