import { Logger } from '../logger.js';
interface CacheEntry {
    url: string;
    method: string;
    headers: Record<string, string>;
    body?: string;
    response: {
        status: number;
        headers: Record<string, string>;
        body: string;
    };
    timestamp: number;
    expiresAt: number;
}
interface CacheOptions {
    maxAge?: number;
    maxSize?: number;
    cacheDir?: string;
}
export declare class RequestCache {
    private cache;
    private logger;
    private options;
    private currentSize;
    constructor(logger: Logger, options?: CacheOptions);
    private initializeCache;
    private loadCacheFromDisk;
    private getCacheKey;
    private calculateEntrySize;
    private saveEntryToDisk;
    private removeEntryFromDisk;
    private cleanup;
    get(url: string, method: string, headers: Record<string, string>): Promise<CacheEntry | null>;
    set(url: string, method: string, headers: Record<string, string>, response: CacheEntry['response'], body?: string): Promise<void>;
    clear(): Promise<void>;
    getMetrics(): {
        size: number;
        entryCount: number;
        hitRate: number;
        maxSize: number;
    };
}
export {};