/**
 * Extracts the invite ID from a Discord invite URL.
 *
 * Accepts invite links in the following formats:
 * - `https://discord.gg/{id}`
 * - `https://discord.com/invite/{id}`
 *
 * @param url - The Discord invite URL to extract the invite ID from.
 * @returns The extracted invite ID as a string.
 * @throws {Error} If the URL does not match the expected Discord invite link formats.
 */
export declare function extractDiscordInviteId(url: string): string;