/**
 * Count sequentially forever
 *
 * @param start (optional, default 1)
 * @param step (optional, default 1)
 */
export declare function count(start?: number, step?: number): Iterable<number>;
/**
 * Cycle through the elements of a collection sequentially forever
 *
 * @param iterable
 */
export declare function cycle<T>(iterable: Iterable<T> | Iterator<T>): Iterable<T>;
/**
 * Cycle through the elements of a async iterable sequentially forever
 *
 * @param iterable
 */
export declare function cycleAsync<T>(iterable: AsyncIterable<T> | AsyncIterator<T> | Iterable<T> | Iterator<T>): AsyncIterable<T>;
/**
 * Repeat an item forever
 *
 * @param item
 */
export declare function repeat<T>(item: T): Iterable<T>;