/**
 * Divide an array into an array of batch arrays
 *
 * For example:
 * batch([1, 2, 3, 4, 5, 6, 7, 8, 9], 3) -> [[1, 2, 3], [4, 5, 6], [7, 8, 9]]
 */
export declare function batch<T = any>(input: T[], batchSize?: number): T[][];