/** @packageDocumentation
 * @module OrbitGT
 */
import { ABuffer } from "../buffer/ABuffer";
import { StringMap } from "../collection/StringMap";
import { Downloader } from "./Downloader";
/**
 * Class DownloaderXhr implements a downloader using an XmlHttpRequest (XHR).
 */
/** @internal */
export declare class DownloaderXhr extends Downloader {
    constructor();
    private static readResponseHeaders;
    private download0;
    downloadBytes(method: string, requestURL: string, requestHeaders: StringMap<string>, postText: string, postData: ABuffer, responseHeaders: StringMap<string>): Promise<ABuffer>;
    downloadText(method: string, requestURL: string, requestHeaders: StringMap<string>, postText: string, postData: ABuffer, responseHeaders: StringMap<string>): Promise<string>;
    downloadText2(requestURL: string): Promise<string>;
}
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