/**
 * Multi-layer cache implementation that supports multiple cache providers
 * Checks caches in order (first to last) and writes to all available caches
 */
import { CacheProvider } from './cache-provider';
export declare class MultiLayerCache implements CacheProvider {
    private caches;
    private invalidateCache;
    constructor(caches: CacheProvider[], invalidateCache?: boolean);
    get(key: string): Promise<Record<string, any> | null>;
    private getFromCache;
    private populateLowerCaches;
    set(key: string, value: Record<string, any>): Promise<void>;
    invalidate(key: string): Promise<boolean>;
    clear(): Promise<void>;
    /**
     * Get the number of cache layers
     */
    getLayerCount(): number;
    /**
     * Get cache providers
     */
    getCaches(): CacheProvider[];
}
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