/// <reference types="react" />
import type { DataNode, Key } from 'rc-tree/lib/interface';
/** 计算选中范围，只考虑expanded情况以优化性能 */
export declare function calcRangeKeys({ treeData, expandedKeys, startKey, endKey, }: {
    treeData: DataNode[];
    expandedKeys: Key[];
    startKey?: Key;
    endKey?: Key;
}): Key[];
export declare function convertDirectoryKeysToNodes(treeData: DataNode[], keys: Key[]): import("rc-tree/lib/interface").FieldDataNode<{
    key: Key;
    title?: string | number | boolean | import("react").ReactElement<any, string | ((props: any) => import("react").ReactElement<any, any> | null) | (new (props: any) => import("react").Component<any, any, any>)> | import("react").ReactFragment | import("react").ReactPortal | ((data: import("rc-tree/lib/interface").FieldDataNode<any, "children">) => import("react").ReactNode) | null | undefined;
}, "children">[];