import { TreeNodeData, KeysDataType, SearchStatus } from './tree';
import React from 'react';
export declare const useViewportHeight: (height: number, listRef: React.RefObject<HTMLElement>) => number[];
export declare const useVisibleDataMemo: (virtual: boolean, filterData: TreeNodeData[], viewportHeight: number, estimatedItemSize: number, start: number) => TreeNodeData[][];
export declare const usePlantomHeightEffect: (plantomRef: React.RefObject<HTMLElement>, filterData: TreeNodeData[], estimatedItemSize: number) => void;
export declare const useChecked: (checkStrictly: boolean, checkedKeysProps: string[], defaultCheckedKeys: string[], _flattenAllData: any[], _maxLevel: number, checkable: boolean, keysData: KeysDataType) => readonly [string[], string[], React.Dispatch<React.SetStateAction<string[]>>, React.Dispatch<React.SetStateAction<string[]>>];
export declare const useExpand: (flattenAllData: any[], expandedKeysProps: string[], defaultExpandedKeys: string[], defaultExpandAll: boolean, defaultExpandRoot: boolean, defaultExpandParent: boolean, scrollKey: string, isInit: boolean, filterTreeNode: FunctionConstructor, isSearching: boolean, keysData: KeysDataType, searchStatus: SearchStatus, filterValue: string, expandOnFilterNode: boolean) => readonly [string[], React.Dispatch<React.SetStateAction<string[]>>];
export declare const useScrollToKey: (scrollKey: string, index: number, estimatedItemSize: number, scrollRef: any, viewportHeight: number, treeNodePrefixCls: string) => void;
export declare const useSelect: (selectedKeysProps: string[], defaultSelectedKeys: string[]) => readonly [string[], React.Dispatch<React.SetStateAction<string[]>>];