docs: public NotificationChain basicSetTerminal(AbstractElement newTerminal, NotificationChain msgs) {
  		AbstractElement oldTerminal = terminal;
  		terminal = newTerminal;
  		if (eNotificationRequired()) {
  			ENotificationImpl notification = new ENotificationImpl(this, Notification.SET, XtextPackage.CROSS_REFERENCE__TERMINAL, oldTerminal, newTerminal);
  			if (msgs == null) msgs = notification; else msgs.add(notification);
  		}
  		return msgs;
  	}