import { HttpEvent, HttpHandler, HttpInterceptor, HttpRequest } from '@angular/common/http';
import { Observable } from 'rxjs';
import * as i0 from "@angular/core";
export declare class NgDocCacheInterceptor implements HttpInterceptor {
    static readonly TOKEN: string;
    private cache;
    intercept<T>(request: HttpRequest<T>, next: HttpHandler): Observable<HttpEvent<T>>;
    static ɵfac: i0.ɵɵFactoryDeclaration<NgDocCacheInterceptor, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<NgDocCacheInterceptor>;
}