import React, { ReactNode } from 'react';
export interface TreeProps {
    checkable?: boolean;
    checkedKeys?: string[];
    checkStrictly?: boolean;
    defaultCheckedKeys?: string[];
    defaultExpandAll?: boolean;
    defaultExpandRoot?: boolean;
    defaultExpandParent?: boolean;
    defaultExpandedKeys?: string[];
    defaultSelectedKeys?: string[];
    disabled?: boolean;
    draggable?: boolean;
    expandedKeys?: string[];
    filterValue?: string;
    filterTreeNode?: () => boolean;
    height?: number;
    icon?: ReactNode | ((props: any) => ReactNode);
    switcherIcon?: ReactNode | ((props: any) => ReactNode) | [ReactNode | ((props: any) => ReactNode)];
    showLine?: boolean | {
        showLeafIcon: boolean;
    };
    treeData?: TreeNodeData[];
    virtual?: boolean;
    scrollToKey?: string;
    selectedKeys?: string[];
    notFoundContent?: ReactNode;
    loadData?: <T>(data: T) => void;
    onCheck?: (checkedKeys: string[], { checked, node, event, halfCheckedKeys }: any) => void;
    onExpand?: (expandedKeys: string[], { expanded, node }: any) => void;
    onSelect?: (keys: string[], { checked, node, event }: any) => void;
    onDragStart?: ({ event, node }: any) => void;
    onDragOver?: ({ event, node }: any) => void;
    onDragLeave?: ({ event, node }: any) => void;
    onDragEnter?: ({ event, node }: any) => void;
    onDragEnd?: ({ event, node }: any) => void;
    onDrop?: ({ event, node, dragNode, dragNodesKeys }: any) => void;
    setTreeNodeClassName?: (node: any) => string;
    setTreeNodeStyle?: (node: any) => Map<string, string>;
    estimatedItemSize?: number;
    expandOnClickNode?: boolean;
    onlyExpandOnClickIcon?: boolean;
    showIcon?: boolean;
    style?: React.CSSProperties;
    className?: string;
    expandOnFilterNode?: boolean;
    renderExtra?: (node: any) => ReactNode;
}
export declare type TreeNodeData = {
    checkable?: boolean;
    expand?: boolean;
    key: string;
    level?: number;
    title?: string;
    disabled?: boolean;
    draggable?: boolean;
    checked?: boolean;
    pos?: string;
    hasChildNode?: boolean;
    children?: TreeNodeData[];
    indeterminate?: boolean;
    icon?: ReactNode | ((props: any) => ReactNode);
    showLine?: boolean;
    showIcon?: boolean;
    selectable?: boolean;
};
export declare type KeysDataType = {
    [key: string]: TreeNodeData & {
        pathParentKeys: string[];
    };
};
export declare type PosDataType = {
    [key: string]: TreeNodeData;
};
export declare type SearchStatus = 'NONE' | 'SEARCH_START' | 'SEARCH_DONE';
declare const Tree: React.ForwardRefExoticComponent<TreeProps & React.RefAttributes<unknown>>;
export default Tree;