export declare type typedArray = String | ArrayBuffer | Int32Array | Uint32Array | Int16Array | Uint16Array | Int8Array | Uint8ClampedArray | Uint8Array | Float32Array | Float64Array;
export declare const encodeFile: (key: string, array: ArrayBuffer, ivBuffer?: typedArray | undefined) => any;
export declare const decodeFile: (key: string, array: ArrayBuffer) => Uint8Array;