/**
 * Cache service using WeakRef to allow garbage collection of values
 * when they're no longer referenced elsewhere and memory pressure occurs.
 * Uses string keys with weakly-referenced values.
 */
export declare class WeakCacheService {
    #private;
    constructor();
    /**
     * Get a cached value by key
     * @param {string} key - String key to lookup
     * @returns {*} The cached value or undefined if not found or garbage collected
     */
    get(key: string): any;
    /**
     * Create/store a value in the cache with weak reference
     * @param {string} key - String key for the cache entry
     * @param {Object} value - Value to cache (must be an object, not a primitive)
     * @returns {Object} The cached value
     */
    create(key: string, value: unknown): object;
    /**
     * Check if a key exists and its value is still alive
     * @param {string} key - String key to check
     * @returns {boolean} True if key exists and value hasn't been garbage collected
     */
    has(key: string): boolean;
    /**
     * Manually delete a cache entry
     * @param {string} key - String key to delete
     * @returns {boolean} True if deletion was successful
     */
    delete(key: string): boolean;
    /**
     * Get the number of cache entries (including potentially garbage collected ones)
     * @returns {number} Cache size
     */
    size(): number;
    /**
     * Clear all cache entries
     */
    clear(): void;
}
export declare const weakCacheService: WeakCacheService;