/**
 * Async utilities module
 *
 * @module async
 *
 * @example
 * Import async utilities:
 * ```typescript
 * import { filterAsync, mapAsync, replaceAsync } from '@vvlad1973/utils';
 * ```
 */
/**
 * Filters an array asynchronously using a predicate function
 *
 * @template T - Type of array elements
 * @param array - Array to filter
 * @param predicate - Async predicate function
 * @returns Promise resolving to filtered array
 *
 * @example
 * ```typescript
 * const numbers = [1, 2, 3, 4, 5];
 * const result = await filterAsync(numbers, async (n) => n > 2);
 * // result: [3, 4, 5]
 * ```
 */
export declare function filterAsync<T>(array: T[] | undefined, predicate: (item: T, index: number, array: T[]) => Promise<boolean> | boolean): Promise<T[] | undefined>;
/**
 * Maps an array asynchronously using a mapper function
 *
 * @template T - Type of input array elements
 * @template U - Type of output array elements
 * @param array - Array to map
 * @param mapper - Async mapper function
 * @returns Promise resolving to mapped array
 *
 * @example
 * ```typescript
 * const numbers = [1, 2, 3];
 * const result = await mapAsync(numbers, async (n) => n * 2);
 * // result: [2, 4, 6]
 * ```
 */
export declare function mapAsync<T, U>(array: T[] | undefined, mapper: (item: T, index: number, array: T[]) => Promise<U> | U): Promise<U[] | undefined>;
/**
 * Replaces all matches in a string asynchronously
 *
 * @param str - Input string
 * @param regex - Regular expression to match
 * @param replacer - Async replacer function
 * @returns Promise resolving to the replaced string
 *
 * @example
 * ```typescript
 * const text = "hello world";
 * const result = await replaceAsync(text, /\w+/g, async (match) => match.toUpperCase());
 * // result: "HELLO WORLD"
 * ```
 */
export declare function replaceAsync(str: string, regex: RegExp, replacer: (match: string, ...args: any[]) => Promise<string> | string): Promise<string>;