/**
 * Replaces the matched pattern with the replacement string.
 *
 * @param {string} target - The target string.
 * @param {string | RegExp} pattern - The pattern to match.
 * @param {string | ((substring: string, ...args: any[]) => string)} replacement - The replacement string or a function that returns the replacement string.
 * @returns {string} The new string with the matched pattern replaced.
 *
 * @example
 * replace('abcde', 'de', '123'); // 'abc123'
 * replace('abcde', /[bd]/g, '-'); // 'a-c-e'
 * replace('abcde', 'de', substring => substring.toUpperCase()); // 'abcDE'
 * replace('abcde', /[bd]/g, substring => substring.toUpperCase()); // 'aBcDe'
 */
declare function replace(target: string | undefined, pattern: string | RegExp, replacement: string | ((substring: string, ...args: any[]) => string)): string;

export { replace };