import { Readable } from "node:stream";
import type { MultiPartFile } from "../lara/client";
import { S3Client, type S3UploadFields } from "./client";
import type { LaraStream } from "./laraStream";
/** @internal */
export declare class NodeS3Client extends S3Client {
    protected _upload(url: string, fields: S3UploadFields, file: Readable, length?: number): Promise<void>;
    download(url: string): Promise<Buffer>;
    downloadStream(url: string): Promise<LaraStream>;
    wrapMultiPartFile(file: MultiPartFile): Readable;
}