import { type IActionHttp } from '@comunica/bus-http';
import type { ICachePolicy, ICacheResponseHead, IRevalidationPolicy } from '@comunica/types';
import CachePolicy = require('http-cache-semantics');
import type { IFetchInitPreprocessor } from './IFetchInitPreprocessor';
/**
 * Wrapper over the cache policy of http-cache-semantics to expose it as an ICachePolicy.
 */
export declare class CachePolicyHttpCacheSemanticsWrapper implements ICachePolicy<IActionHttp> {
    private readonly cachePolicy;
    private readonly queryTimestamp;
    private readonly fetchInitPreprocessor;
    constructor(cachePolicy: CachePolicy, queryTimestamp: number | undefined, fetchInitPreprocessor: IFetchInitPreprocessor);
    storable(): boolean;
    satisfiesWithoutRevalidation(action: IActionHttp): Promise<boolean>;
    responseHeaders(): Headers;
    timeToLive(): number;
    revalidationHeaders(newAction: IActionHttp): Promise<Headers>;
    revalidatedPolicy(revalidationAction: IActionHttp, revalidationResponse: ICacheResponseHead): Promise<IRevalidationPolicy<IActionHttp>>;
    static convertFromFetchRequest(request: IActionHttp, fetchInitPreprocessor: IFetchInitPreprocessor): Promise<CachePolicy.Request>;
    static convertToFetchHeaders(headers: CachePolicy.Headers): Headers;
}