import { CredentialsClass } from '@aws-amplify/core';
import { S3Client } from '@aws-sdk/client-s3';
export declare interface Part {
    bodyPart: any;
    partNumber: number;
    emitter: any;
    etag?: string;
    _lastUploadedBytes: number;
}
export declare class StorageChunkManagedUpload {
    private credentials;
    protected minPartSize: number;
    private queueSize;
    private body;
    private params;
    private opts;
    private multiPartMap;
    private cancel;
    private bytesUploaded;
    private totalBytesToUpload;
    private emitter;
    constructor(params: any, credentials: CredentialsClass, opts: any, emitter: any);
    upload(): Promise<string | import("@aws-sdk/client-s3").PutObjectCommandOutput>;
    private createParts;
    private createMultiPartUpload;
    /**
     * @private Not to be extended outside of tests
     * @VisibleFotTesting
     */
    protected uploadParts(uploadId: string, parts: Part[]): Promise<void>;
    private finishMultiPartUpload;
    private checkIfUploadCancelled;
    cancelUpload(): void;
    private cleanup;
    private setupEventListener;
    private progressChanged;
    private byteLength;
    private validateAndSanitizeBody;
    private isBlob;
    private isGenericObject;
    /**
     * @private
     * creates an S3 client with new V3 aws sdk
     */
    protected _createNewS3Client(config: any, emitter?: any): Promise<S3Client>;
    /**
     * @private
     */
    _getCredentials(): any;
}