import type { RDAPResponse } from '../../shared/types';
import type { ICache } from './CacheManager';
export declare class InMemoryCache implements ICache {
    private cache;
    private readonly maxSize;
    private accessOrder;
    constructor(maxSize?: number);
    get(key: string): Promise<RDAPResponse | null>;
    set(key: string, value: RDAPResponse, ttl?: number): Promise<void>;
    delete(key: string): Promise<void>;
    clear(): Promise<void>;
    has(key: string): Promise<boolean>;
    size(): Promise<number>;
    private updateAccessOrder;
    private removeFromAccessOrder;
    private evictLRU;
    private cleanupExpired;
    getStats(): Promise<{
        size: number;
        maxSize: number;
        hitRate?: number;
    }>;
}
//# sourceMappingURL=InMemoryCache.d.ts.map