ICompilationUnit comp_unit = model_element.getCompilationUnit();
ASTNode node = getASTNodeFromCompilationUnit(comp_unit);
// Now, find the corresponding type node
final Box<NODETYPE> result = new Box<NODETYPE>(null);
node.accept(new ASTVisitor() {
@Override
public void postVisit(ASTNode node) {
// If this node is a subtype of the node we are
// interested in, then we can ask the client's