export declare class FileUtils {
    static exists(filePath: string): Promise<boolean>;
    static ensureDir(dirPath: string): Promise<void>;
    static copyFile(src: string, dest: string): Promise<void>;
    static removeFile(filePath: string): Promise<void>;
    static readJson<T>(filePath: string): T | null;
    static writeJson(filePath: string, data: any): Promise<void>;
    static writeFile(filePath: string, content: string): Promise<void>;
}
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