import type { CachedDocument } from '@grubtech/integration-core';
export declare class FileCache {
    private cacheDir;
    private readonly TTL;
    constructor(cacheDir?: string);
    get(key: string): Promise<CachedDocument | null>;
    set(key: string, document: Omit<CachedDocument, 'cachedAt' | 'expiresAt'>): Promise<void>;
    getAllCachedDocs(): Promise<CachedDocument[]>;
}
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