/**
 * Return the year from a UTC datetime string.
 *
 * - Returns the year as a string (e.g., "2024").
 * - Returns "" for invalid input.
 *
 * @param value ISO UTC datetime string (e.g., "2024-03-17T14:30:45Z")
 * @returns Year (YYYY) or "" on invalid input
 *
 * @example parseYearFromUtc("2024-03-17T14:30:45Z") // "2024"
 * @example parseYearFromUtc("invalid") // ""
 */
export declare function parseYearFromUtc(value: string): string;