import { HttpEvent, HttpHandler, HttpInterceptor, HttpRequest, HttpResponse } from '@angular/common/http';
import { Observable } from 'rxjs';
import { PghCacheInterceptorOptions } from './models';
import { CacheControllerService } from './cache-controller.service';
import * as i0 from "@angular/core";
export declare class CacheInterceptor implements HttpInterceptor {
    private options;
    private cacheControllerService;
    readonly CACHE_EXPIRE_TIME: number;
    readonly cachedResponses: Map<string, {
        response: HttpResponse<unknown>;
        savedTime: number;
    }>;
    readonly pendingRequests: Map<string, Observable<HttpEvent<unknown>>>;
    constructor(options: PghCacheInterceptorOptions, cacheControllerService: CacheControllerService);
    intercept(req: HttpRequest<unknown>, next: HttpHandler): Observable<HttpEvent<unknown>>;
    static ɵfac: i0.ɵɵFactoryDeclaration<CacheInterceptor, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<CacheInterceptor>;
}