import Service from "../service";
import type { ProducerConfig } from "./config";
import { RetryQueue } from "./retry_queue";
import type { Batch } from "./batch";
/**
 * 负责将 Batch 发送到 TLS 服务，并在失败时按照重试策略将批次重新放入重试队列。
 */
export declare class Sender {
    private readonly service;
    private readonly retryQueue;
    private readonly config;
    private readonly headers?;
    private readonly noRetryStatusCodeSet;
    private readonly decreaseBufferedSize;
    private readonly putLogs;
    private stopped;
    constructor(params: {
        service: Service;
        retryQueue: RetryQueue;
        config: ProducerConfig;
        headers?: Record<string, string>;
        noRetryStatusCodeList: number[];
        decreaseBufferedSize: (delta: number) => void;
    });
    stop(): void;
    /**
     * 将一个批次发送到服务端；若失败则根据状态码和重试次数决定是否进入重试队列。
     */
    send(batch: Batch): Promise<void>;
    private handleSuccess;
    private handleFailure;
    private failedCallback;
    private addErrorAttempt;
    /**
     * 从 AxiosError 中解析状态码、RequestId、错误码与错误信息。
     */
    private extractErrorInfo;
}