export class XhrLoader {
    static isSupported(): boolean;
    _xhr: any;
    _aborted: boolean;
    _timeoutTimer: any;
    _range: any;
    _receivedLength: number;
    _url: any;
    _onProgress: any;
    _index: number;
    _headers: any;
    _currentChunkSizeKB: number;
    _timeout: any;
    _dynamicTimeoutIns: any;
    _withCredentials: any;
    _startTime: number;
    _loadCompleteResolve: any;
    _loadCompleteReject: any;
    _runing: boolean;
    _logger: boolean;
    _vid: string;
    _responseType: any;
    _credentials: any;
    _method: any;
    _transformResponse: any;
    _firstRtt: any;
    _onCancel: any;
    _priOptions: any;
    load(req: any): Promise<any>;
    _body: any;
    _onTimeout: any;
    _request: any;
    _startLoad(): void;
    _internalOpen(range: any): void;
    _running: any;
    _onReadyStatechange(e: any): void;
    _onLoad(e: any): any;
    cancel(): any;
    get receiveLen(): number;
    set running(arg: any);
    get running(): any;
    _getHeaders(xhr: any): {};
}