import { S3Client } from '@aws-sdk/client-s3';
import { Readable } from 'stream';
export declare class S3Service {
    private readonly options;
    private readonly s3Client;
    private readonly logger;
    private readonly bucket;
    constructor(options: Record<string, string>, s3Client: S3Client);
    uploadObject(key: string, body: Buffer | Uint8Array | string, contentType?: string): Promise<void>;
    deleteObject(key: string): Promise<void>;
    getObject(key: string): Promise<Readable>;
}