/**
 * Utility function that produces an (async) iterator
 * producing integers starting and ending where you want,
 * which is useful for trying out stuff without manually
 * having to create arrays.
 *
 * * 'from' can be higher than 'to', in which case the iterator will count down
 * * 'step' is always a positive number (but we are forgiving if it's not)
 *
 * @param start start index
 * @param end end index
 * @param end step size, default = 1
 *
 * @category interface/standard
 */
declare function itr8RangeAsync(from: number, to: number, step?: number): AsyncIterableIterator<number>;
export { itr8RangeAsync };