import { IAsynchronousCacheType } from '../../types/cache.types.js';
export declare class FsJsonStorage implements IAsynchronousCacheType {
    jsonFilePath: string;
    constructor(jsonFilePath: string);
    getItem<T>(key: string): Promise<T | undefined>;
    setItem(key: string, content: any): Promise<void>;
    clear(): Promise<void>;
    private createEmptyCache;
    private setCache;
    private getCacheObject;
}