import BaseLayer from '../../../models/layers/baselayer';
import GroupLayer from '../../../models/layers/grouplayer';
import ThemeLayer from '../../../models/layers/themelayer';
import TreeViewElement from './treeviewelement';
export default abstract class TreeViewGroupElement extends TreeViewElement {
    layer: GroupLayer | ThemeLayer;
    constructor(layer: GroupLayer | ThemeLayer, name: string);
    sortedChildren(): BaseLayer[];
    protected deactivateThemeOrGroup(layer: BaseLayer): void;
    toggle(): void;
    private toggleLayers;
}