* @param colony The <code>Colony</code> to set the goods levels in.
     * @param exportData The new <code>ExportData</code>.
     * @return An <code>Element</code> encapsulating this action.
     */
    public Element setGoodsLevels(ServerPlayer serverPlayer, Colony colony,
                                  ExportData exportData) {
        colony.setExportData(exportData);
        return new ChangeSet().add(See.only(serverPlayer), colony)
            .build(serverPlayer);
    }