export type HierarchyStructure<T> = T & {
    children?: HierarchyStructure<T>[];
};
/**
 * <zh/> 执行深度优先遍历
 *
 * <en/> perform depth first traversal
 * @param node - <zh/> 起始节点 | <en/> start node
 * @param visitor - <zh/> 访问节点函数 | <en/> visitor function
 * @param navigator - <zh/> 获取子节点函数 | <en/> get children function
 * @param mode - <zh/> 访问模式，BT: 自底向上访问，TB: 自顶向下访问 | <en/> traverse mode, BT: bottom to top, TB: top to bottom
 * @param depth - <zh/> 当前深度 | <en/> current depth
 */
export declare function dfs<N>(node: N, visitor: (node: N, depth: number) => void, navigator: (node: N) => N[] | undefined, mode: 'BT' | 'TB', depth?: number): void;
/**
 * <zh/> 执行广度优先遍历
 *
 * <en/> perform breadth first traversal
 * @param node - <zh/> 起始节点 | <en/> start node
 * @param visitor - <zh/> 访问节点函数 | <en/> visitor function
 * @param navigator - <zh/> 获取子节点函数 | <en/> get children function
 */
export declare function bfs<N>(node: N, visitor: (node: N, depth: number) => void, navigator: (node: N) => N[] | undefined): void;