import type { IsoDateStamp } from '../../domain.objects/IsoTimeStamp';
import { castInputToDate } from '../../domain.operations/casts/castInputToDate';
/**
 * .what = casts input to IsoDateStamp format in UTC
 * .why = converts various input types to strict ISO date
 * .format = yyyy-MM-dd
 *
 * timezone is always 'utc' — dates are extracted from UTC representation
 */
export declare const asIsoDateStamp: (input: Parameters<typeof castInputToDate>[0], options?: {
    /** output timezone — always 'utc' */
    timezone?: 'utc';
}) => IsoDateStamp;
/**
 * .what = validates string is IsoDateStamp format
 * .why = runtime validation for external input
 */
export declare const isIsoDateStamp: import("type-fns").AssessWithAssure<string, string & import("domain-glossaries").OfGlossary<"iso-time.IsoTimeStamp" | "iso-time.IsoDateStamp">>;