/**
 * Code Knowledge Graph — 查询引擎
 * v6.90.0
 *
 * 支持 explain / path / query 三种查询模式
 */
import type { CodeGraph, GraphQueryResult } from './types';
/** explain: 解释一个节点及其直接连接 */
export declare function explainNode(graph: CodeGraph, nameOrId: string): GraphQueryResult;
/** path: BFS 最短路径 */
export declare function findPath(graph: CodeGraph, from: string, to: string): GraphQueryResult;
/** query: 关键词匹配返回子图（简化版） */
export declare function queryGraph(graph: CodeGraph, question: string): GraphQueryResult;
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