/** Ensure a directory exists */
export declare function ensureDir(path: string): Promise<void>;
/** Write data to a file if it does not exist */
export declare function writeIfNotExist(filepath: string, bytes: Uint8Array): Promise<boolean>;
/** Remove a file if it exists */
export declare function removeFile(path: string): Promise<boolean>;
export declare function readFile(path: string): Promise<Uint8Array | null>;
export declare function readFileNames(folderPath: string): Promise<string[]>;
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