/**
 * Parses an ISO date string with timezone handling.
 * If the date string doesn't have a timezone offset, it appends 'Z' (UTC) to ensure consistent parsing.
 * This prevents parseISO from adding timezone based on daylight saving time.
 *
 * @param dateString - The ISO date string to parse
 * @returns A Date object parsed from the string
 */
export declare function parseISOWithTimezoneCheck(dateString: string): Date;