/**
 * Simple Time-Based Cache Utility
 * Provides TTL-based caching for values
 */
/**
 * Simple TTL-based cache for single values
 */
export declare class SimpleCache<T> {
    private readonly ttl;
    private entry;
    constructor(ttl: number);
    /**
     * Get cached value if valid, otherwise return null
     */
    get(): T | null;
    /**
     * Set value in cache
     */
    set(value: T): void;
    /**
     * Clear cache
     */
    clear(): void;
    /**
     * Check if cache has valid value
     */
    has(): boolean;
}