https://monticore.github.io/monticore/monticore-grammar/javadoc/de/monticore/types3/SymTypeRelationsOfIterables.html
SymTypeRelationsOfIterables (monticore-grammar 7.9.0-SNAPSHOT API)
declaration: package: de.monticore.types3, class: SymTypeRelationsOfIterables
grammarsnapshotapi