interface ContextManagerConfig {
    maxCacheSize?: number;
    ttl?: number;
    maxContextSize?: number;
}
interface ContextMetadata {
    created: string;
    [key: string]: any;
}
interface Context {
    id: string;
    metadata: ContextMetadata;
}
export declare class ContextManager {
    private config;
    private cache;
    private stats;
    constructor(config?: ContextManagerConfig);
    /**
     * 获取或创建上下文
     */
    getContext(contextId: string, metadata?: object): Promise<Context>;
    /**
     * 更新上下文
     */
    updateContext(contextId: string, updates: object): Promise<Context>;
    /**
     * 使上下文失效
     */
    invalidateContext(contextId: string, metadata?: object): void;
    /**
     * 获取缓存数据
     */
    getCachedData<T = any>(key: string): T | undefined;
    /**
     * 设置缓存数据
     */
    setCachedData(key: string, data: any): void;
    /**
     * 使缓存项失效
     */
    invalidateCacheKey(key: string): void;
    /**
     * 获取缓存统计信息
     */
    getStats(): {
        size: number;
        maxSize: number;
        ttl: number;
        hits: number;
        misses: number;
        invalidations: number;
    };
    /**
     * 生成缓存键（基于上下文ID和元数据）
     */
    private generateCacheKey;
}
export declare const contextManager: ContextManager;
export {};
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