import { type PartialWithUndefined, type SetRequiredAndNotNull } from '@augment-vir/common';
import { type FullDate } from '../full-date/full-date-shape.js';
import { type Timezone } from '../timezone/timezones.js';
/**
 * Checks that the input has all the requested {@link FullDate} keys.
 *
 * @category Util
 * @example
 *
 * ```ts
 * import {hasFullDateKeys} from 'date-vir';
 *
 * hasFullDateKeys({year: 2024}, ['year']); // `true`
 * hasFullDateKeys({year: 2024}, ['day']); // `false`
 * ```
 */
export declare function hasFullDateKeys<SpecificTimezone extends Timezone, PartialFullDate extends PartialWithUndefined<FullDate<SpecificTimezone>>, 
/** A union of strings. */
RequiredKeys extends keyof FullDate<SpecificTimezone>>(partialFullDate: PartialWithUndefined<FullDate<SpecificTimezone>>, keys: ReadonlyArray<RequiredKeys>): partialFullDate is SetRequiredAndNotNull<PartialFullDate, RequiredKeys>;
/**
 * Asserts that the input has all the requested {@link FullDate} keys.
 *
 * @category Util
 * @example
 *
 * ```ts
 * import {assertHasFullDateKeys} from 'date-vir';
 *
 * assertHasFullDateKeys({year: 2024}, ['year']); // passes
 * assertHasFullDateKeys({year: 2024}, ['day']); // fails
 * ```
 */
export declare function assertHasFullDateKeys<SpecificTimezone extends Timezone, PartialFullDate extends PartialWithUndefined<FullDate<SpecificTimezone>>, 
/** A union of strings. */
RequiredKeys extends keyof FullDate<SpecificTimezone>>(partialFullDate: PartialWithUndefined<FullDate<SpecificTimezone>>, keys: ReadonlyArray<RequiredKeys>): asserts partialFullDate is SetRequiredAndNotNull<PartialFullDate, RequiredKeys>;