import { TreeData } from './tree';
export declare const findTreeNodeWrapper: (target: HTMLElement, findedCondition: (target: HTMLElement) => boolean) => HTMLElement | null;
export declare const findParentNode: (tree: TreeData[], node: TreeData | null) => TreeData | null;
export declare const isAncestorNode: (tree: TreeData[], node: TreeData, target: TreeData) => boolean;
export declare const getChildren: <T extends {
    children?: T[];
}>(data: T[], treeNode?: T | null) => T[];