import { NTree } from '../interface';
export declare function calcRangeKeys({ treeData, expandedKeys, startKey, endKey, fieldNames }: {
    treeData: NTree.IDataNode[];
    expandedKeys: NTree.TKey[];
    startKey?: NTree.TKey;
    endKey?: NTree.TKey;
    fieldNames?: NTree.IFieldNames;
}): NTree.TKey[];
export declare function convertDirectoryKeysToNodes(treeData: NTree.IDataNode[], keys: NTree.TKey[], fieldNames: NTree.IFieldNames): NTree.IDataNode[];
