/**
 * 重试机制模块
 * 提供带指数退避的请求重试功能
 */
export interface RetryOptions {
    maxRetries?: number;
    baseDelay?: number;
    maxDelay?: number;
    retryableStatusCodes?: number[];
    retryableErrorTypes?: string[];
    signal?: AbortSignal;
    deadlineAt?: number;
}
interface RetryStats {
    attempts: number;
    successes: number;
    failures: number;
    lastError?: Error;
    lastAttemptTime?: number;
}
declare class RetryManager {
    private stats;
    constructor();
    /**
     * 带重试的函数执行
     */
    execute<T>(fn: () => Promise<T>, options?: RetryOptions): Promise<T>;
    /**
     * 计算重试延迟（指数退避 + 抖动）
     */
    private calculateDelay;
    private assertDeadline;
    /**
     * 检查是否应该重试
     */
    private shouldRetry;
    /**
     * 获取重试统计
     */
    getStats(): RetryStats;
    /**
     * 重置统计
     */
    resetStats(): void;
}
export declare const retryManager: RetryManager;
/**
 * 便捷的重试包装函数
 */
export declare function withRetry<T>(fn: () => Promise<T>, options?: RetryOptions): Promise<T>;
export {};
//# sourceMappingURL=retry.d.ts.map