import { HttpEvent, HttpHandler, HttpInterceptor, HttpRequest } from '@angular/common/http';
import { Observable } from 'rxjs';
import * as i0 from "@angular/core";
export declare class NgHttpCachingInterceptorService implements HttpInterceptor {
    private readonly cacheService;
    intercept(req: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>>;
    /**
     * Send http request (next handler)
     */
    sendRequest(req: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>>;
    static ɵfac: i0.ɵɵFactoryDeclaration<NgHttpCachingInterceptorService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<NgHttpCachingInterceptorService>;
}