import type { BackgroundTask, LaunchInput, BackgroundTaskConfig } from './types';
export declare class BackgroundManager {
    private readonly client;
    private readonly tasks;
    private readonly queues;
    private readonly processing;
    private readonly pollingTimers;
    private readonly lastPollResult;
    private readonly concurrencyManager;
    private readonly taskTTL;
    private readonly staleTimeout;
    private readonly minStabilityTime;
    /**
     * Initialize background manager with client and configuration
     * 使用客户端和配置初始化后台管理器
     */
    constructor(client: unknown, config?: BackgroundTaskConfig);
    /**
     * Launch a new background task
     * 启动新的后台任务
     */
    launch(input: LaunchInput): BackgroundTask;
    /**
     * Get a background task by ID
     * 通过 ID 获取后台任务
     */
    getTask(taskId: string): BackgroundTask | undefined;
    /**
     * Cancel a specific background task
     * 取消特定的后台任务
     */
    cancelTask(taskId: string): boolean;
    /**
     * Cancel all background tasks (optionally filtered by parent session)
     * 取消所有后台任务（可选择按父会话过滤）
     */
    cancelAll(parentSessionID?: string): number;
    /**
     * Get all background tasks for a parent session
     * 获取父会话的所有后台任务
     */
    getTasksByParent(parentSessionID: string): BackgroundTask[];
    /**
     * Process the next item in a concurrency queue
     * 处理并发队列中的下一个项目
     */
    private processKey;
    /**
     * Start executing a background task
     * 开始执行后台任务
     */
    private startTask;
    /**
     * Poll a background task for completion or timeout
     * 轮询后台任务以检查完成或超时
     */
    private pollTask;
    /**
     * Generate a concurrency key based on agent and model information
     * 根据代理和模型信息生成并发键
     */
    private getConcurrencyKey;
    /**
     * Generate a unique task ID
     * 生成唯一的任务 ID
     */
    private generateId;
}