import { Request, XHRBackend, BrowserXhr, ResponseOptions, XSRFStrategy } from '@angular/http';
export declare class AuthenticateXHRBackend extends XHRBackend {
    constructor(_browserXhr: BrowserXhr, _baseResponseOptions: ResponseOptions, _xsrfStrategy: XSRFStrategy);
    createConnection(request: Request): import("@angular/http").XHRConnection;
}