/**
 * @license
 * Copyright Google Inc. All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
import { Injector, Provider } from '@alterior/di';
import { Observable } from 'rxjs';
import { HttpEvent } from './response';
import { HttpRequest } from './request';
import { HttpBackend } from './backend';
import { BrowserXhr } from './xhr';
export declare class ServerXhr implements BrowserXhr {
    build(): XMLHttpRequest;
}
export declare abstract class ZoneMacroTaskWrapper<S, R> {
    wrap(request: S): Observable<R>;
    protected abstract delegate(request: S): Observable<R>;
}
export declare class ZoneClientBackend extends ZoneMacroTaskWrapper<HttpRequest<any>, HttpEvent<any>> implements HttpBackend {
    private backend;
    constructor(backend: HttpBackend);
    handle(request: HttpRequest<any>): Observable<HttpEvent<any>>;
    protected delegate(request: HttpRequest<any>): Observable<HttpEvent<any>>;
}
export declare function zoneWrappedInterceptingHandler(backend: HttpBackend, injector: Injector): ZoneClientBackend;
export declare const SERVER_HTTP_PROVIDERS: Provider[];
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