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