import { HttpRequest, HttpResponse } from '@angular/common/http';
declare type RequestTester = ((request: HttpRequest<any>) => boolean) | RegExp | string;
export declare class CacheService {
    private readonly cache;
    setCacheable(tester: RequestTester, ttl?: number): void;
    isCacheable(request: HttpRequest<any>): boolean;
    getCache(request: HttpRequest<any>): HttpResponse<any> | undefined;
    putCache(request: HttpRequest<any>, response: HttpResponse<any>): void;
    private getCacheRecord;
    private testRequest;
}
export {};