/// <reference types="node" />
/**
 * Supported implementations:
 * - Node.js 'buffer.Blob', e.g. 'new buffer.Blob([JSON.stringify({someValue: 42})], {type: "application/json"})'
 * - Browser 'Blob', e.g. 'new Blob([JSON.stringify({someValue: 42})], {type: "application/json"})'
 * - Browser 'File', e.g. from a <input type="file" onchange="...">
 */
import { BeginMultipartUploadRequest } from "../gen";
import { ChunkedStream } from "./ChunkedStream";
export interface BlobLike {
    readonly name?: string;
    readonly size: number;
    readonly type?: string;
    slice: (start?: number, end?: number) => BlobLike;
}
export interface CancellationToken {
    isCancelled: boolean;
}
export declare class CancelledError extends Error {
    msg?: string | undefined;
    name: "CancelledError";
    constructor(msg?: string | undefined);
}
export declare type UploadSource = NodeJS.ReadableStream | BlobLike | Buffer | string;
export interface UploadManagerParams extends Omit<BeginMultipartUploadRequest, "size" | "protocol"> {
    accountId: string;
    cancellationToken?: CancellationToken;
    data: UploadSource;
    maxConcurrentUploadParts?: number;
    /**
     * Only required if 'data' is a 'ReadableStream'.
     */
    size?: number;
}
export declare type UploadSourceProcessed = ChunkedStream | BlobLike | Buffer;