import { PutObjectCommandOutput, DeleteObjectCommandOutput, CopyObjectCommandOutput } from '@aws-sdk/client-s3';
export declare function getContentFromS3File(bucketName: string, filepath: string): Promise<string | undefined>;
export declare function getPreSignedUrl(bucketName: string, filepath: string): Promise<string | null>;
export declare function uploadFileToS3(bucketName: string, cloudPath: string, filepath: Buffer | string, isBuffer?: boolean): Promise<PutObjectCommandOutput>;
export declare function downloadFileFromS3(bucketName: string, cloudPath: string, downloadPath: string): Promise<string>;
export declare function invokeLamdba(bucketName: string, funcName: string, payload: any): Promise<any>;
export declare function deleteFileFromS3(bucketName: string, cloudPath: string): Promise<DeleteObjectCommandOutput>;
export declare function copyFileWithinS3(bucketName: string, src: string, destination: string): Promise<CopyObjectCommandOutput>;
export declare function deleteFolderFromS3(bucketName: string, folderName: string): Promise<void>;
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