/**
 * URL Parser with LRU Cache
 *
 * Caching mechanism to reduce `new URL()` creation cost
 *
 * @module utils/url-parser
 */
/**
 * Parse query string from URL with caching
 *
 * Cache query parameters of frequently called URLs to improve performance
 * because `new URL()` creation cost is high.
 *
 * @param url - Request URL (e.g., '/users?page=1&limit=10')
 * @returns Parsed query parameters
 *
 * @example
 * ```typescript
 * const query = parseQuery('/users?page=1&limit=10')
 * // { page: '1', limit: '10' }
 * ```
 *
 * @performance
 * - First call: URL parsing cost (slow)
 * - Repeated calls: Cache lookup (very fast, 20-30% performance improvement)
 */
export declare function parseQuery(url: string): Record<string, any>;
/**
 * Parse full URL (path + query)
 *
 * Parse entire URL to separate path and query.
 *
 * @param url - Request URL
 * @returns Object with path and query
 *
 * @example
 * ```typescript
 * const { path, query } = parseUrl('/users?page=1')
 * // path: '/users', query: { page: '1' }
 * ```
 */
export declare function parseUrl(url: string): {
    path: string;
    query: Record<string, any>;
};
/**
 * Clear cache (for testing)
 */
export declare function clearQueryCache(): void;
/**
 * Return cache size (for testing/debugging)
 */
export declare function getQueryCacheSize(): number;
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