/**
 * This function does nothing.
 *
 * @return {void} No return value.
 */
export declare const noop: () => void;
/**
 * @description Add the number of cuts based on the original split and return all subsets after the cut
 * @param str need to split of primitive string
 * @param splitStr split params
 * @param num split limit
 * @returns a new split array, length is num + 1
 */
export declare function mulSplit(str: string, splitStr: string, num?: number): string[];
/**
 * Sleeps for a given delay.
 *
 * @param {number} delay - The delay, in milliseconds.
 * @return {Promise<void>} A promise that resolves after the delay.
 */
export declare const sleep: (delay: number) => Promise<unknown>;