/**
 * Shuffle the given array
 *
 * @param {T[]} items Array of items to be shuffled
 * @returns {T[]} shuffeled array of items
 */
declare function shuffleArray<T>(items: T[]): T[];
/**
 * ConcatArrays takes n number arrays and returns a joint Uint8Array
 * @param arrs - An arbitrary number of n array-like number list arguments
 * @returns [a,b]
 */
declare function concatArrays(...arrs: ArrayLike<number>[]): Uint8Array;
export { shuffleArray, concatArrays };