/**
 * Cache layer for check results
 */
import type { CheckResult, CacheOptions } from './types.js';
/**
 * Hybrid cache that uses memory for current session and file for persistence
 */
export declare class CheckResultCache {
    private memoryCache;
    private fileCache;
    private readonly type;
    constructor(options?: CacheOptions);
    /**
     * Get a cached result
     */
    get(siteKey: string, username: string): CheckResult | null;
    /**
     * Set a cached result
     */
    set(siteKey: string, username: string, result: CheckResult): void;
    /**
     * Check if a result is cached
     */
    has(siteKey: string, username: string): boolean;
    /**
     * Clear the cache
     */
    clear(): void;
    /**
     * Get cache statistics
     */
    stats(): {
        type: string;
        memorySize: number;
        fileSize?: number;
    };
    private getCacheKey;
}