/// <reference types="react" />
import { Key, GetKey, DataNode, DataEntity, FlattenNode } from './interface';
interface Wrapper {
    posEntities: Record<string, DataEntity>;
    keyEntities: Record<Key, DataEntity>;
}
interface CheckedKeys {
    checkedKeys: Key[];
    halfCheckedKeys: Key[];
}
export declare function arrDel(list: Key[], value: Key): import("react").ReactText[];
export declare function arrAdd(list: Key[], value: Key): import("react").ReactText[];
/**
 * Parse `checkedKeys` to { checkedKeys, halfCheckedKeys } style
 */
export declare function parseCheckedKeys(keys: Key[] | {
    checked: Key[];
    halfChecked: Key[];
}): CheckedKeys | null;
export declare function getKey(key: Key, pos: string): import("react").ReactText;
export declare function getPosition(level: string | number, index: number): string;
/**
 * Traverse all the data by `treeData`.
 * Please not use it out of the `rc-tree` since we may refactor this code.
 */
export declare function traverseDataNodes(dataNodes: DataNode[], childrenName: string | undefined, callback: (data: DataEntity) => void, externalGetKey?: GetKey<DataNode> | string): void;
/**
 * Convert `treeData` into entity records.
 */
export declare function convertDataToEntities(dataNodes: DataNode[], childrenName?: string, { initWrapper, processEntity, onProcessFinished, }?: {
    initWrapper?: (wrapper: Wrapper) => Wrapper;
    processEntity?: (entity: DataEntity, wrapper: Wrapper) => void;
    onProcessFinished?: (wrapper: Wrapper) => void;
}, externalGetKey?: GetKey<DataNode> | string): Wrapper;
/**
 * Flat nest tree data into flatten list. This is used for virtual list render.
 * @param treeNodeList Origin data node list
 * @param expandedKeys
 * need expanded keys, provides `true` means all expanded (used in `rc-tree-select`).
 */
export declare function flattenTreeData(treeNodeList?: DataNode[], expandedKeys?: Key[] | true, childrenName?: string): FlattenNode[];
export {};