model.setRoot( type );
final ActionUpdateNode action = new ActionUpdateNodeImpl( type );
action.setModify( false );
action.getFieldValues().add( new ActionFieldValueImpl( "age",
new IntegerValue( 25 ) ) );
action.getFieldValues().add( new ActionFieldValueImpl( "name",
new StringValue( "Michael" ) ) );
type.addChild( action );
final String drl = GuidedDecisionTreeDRLPersistence.getInstance().marshal( model );