/**
 * Datetime utilities — branded ISO 8601 datetime Zod schema and factory.
 *
 * @module
 */
import { z } from 'zod';
export declare const Datetime: z.core.$ZodBranded<z.ZodISODateTime, "Datetime", "out">;
export type Datetime = z.infer<typeof Datetime>;
/** Returns an ISO 8601 datetime string for the current time. */
export declare const get_datetime_now: () => Datetime;
export declare const DatetimeNow: z.ZodDefault<z.core.$ZodBranded<z.ZodISODateTime, "Datetime", "out">>;
export type DatetimeNow = z.infer<typeof DatetimeNow>;
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