import BaseLayer from '../../../models/layers/baselayer';
declare class DragHelper {
    static checkParents(dragged: BaseLayer, dropped: BaseLayer): void;
    static reorderLayers(dragged: BaseLayer, dropped: BaseLayer, adjustOrder: (childOrder: number, draggedOrder: number) => boolean, increment: number): void;
    static moveLayerAfter(dragged: BaseLayer, dropped: BaseLayer): void;
    static moveLayerBefore(dragged: BaseLayer, dropped: BaseLayer): void;
}
export default DragHelper;