/**
 * Checks if a URL segment is an identifier (UUID, numeric ID, or long slug).
 * @param segment - The URL path segment to check
 * @returns True if the segment matches any of these patterns:
 * - UUID format (e.g., '123e4567-e89b-12d3-a456-426614174000')
 * - Numeric ID (e.g., '123')
 * - Alphanumeric slug 30 characters or longer (for compatibility)
 */
export declare const isUUIDorID: (segment: string) => boolean;