/// <reference types="node" />
import { S3 } from 'aws-sdk';
import { Readable, Stream } from 'stream';
import { StsAssumeRoleConfig } from '../aws/credentials';
import { LogType } from '../log';
import { FileProcessor } from './file';
export declare class FileOperatorS3 implements FileProcessor {
    s3: S3;
    static isS3(obj: any): obj is FileOperatorS3;
    constructor(options?: StsAssumeRoleConfig);
    static parse(uri: string): {
        bucket: string;
        key: string;
    };
    list(filePath: string): Promise<string[]>;
    read(filePath: string): Promise<Buffer>;
    readJson<T>(filePath: string): Promise<T>;
    write(filePath: string, buf: Buffer | Stream, logger?: LogType): Promise<void>;
    writeJson(filePath: string, obj: any, logger?: LogType): Promise<void>;
    exists(filePath: string): Promise<boolean>;
    readStream(filePath: string): Readable;
}
//# sourceMappingURL=file.s3.d.ts.map