/**
 * Performance optimization: LRU Cache for validation results
 * Reduces redundant validation calls for the same class names
 */
export declare class PerformanceCache<K, V> {
    private cache;
    private maxSize;
    constructor(maxSize?: number);
    get(key: K): V | undefined;
    set(key: K, value: V): void;
    has(key: K): boolean;
    clear(): void;
    get size(): number;
}
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