import { Temporal } from "@js-temporal/polyfill";
/**
 * Return the current zoned datetime for the specified IANA timeZone.
 *
 * - Uses Temporal.Now.zonedDateTimeISO to get the current time.
 * - Validation is performed on the timezone.
 *
 * @param ianaTimezone IANA timeZone identifier
 * @param optionsArg optional: smallestUnit ("second" | "millisecond" | "microsecond" | "nanosecond")
 * @returns zoned ISO 8601 datetime string or "" on invalid input
 *
 * @example getZonedNow("America/New_York") // "2024-02-29T09:30:45.123-05:00[America/New_York]"
 * @example getZonedNow("Invalid/Zone") // ""
 */
export declare function getZonedNow(ianaTimezone: string, optionsArg?: {
    smallestUnit?: Temporal.ZonedDateTimeToStringOptions["smallestUnit"];
}): string;