import type { ValidationOptions } from 'class-validator';
import type { ConfigType, OpUnitType } from 'dayjs';
/** @hidden */
export declare const MAX_DAYJS = "maxDayjs";
/**
 * Checks if the given value is a valid Dayjs object not later than `maximum`.
 *
 * #### Example
 * ```typescript
 * // Ensure the value is before the infamous Y2K.
 * @MaxDayjs('2000-01-01Z', { granularity: 'day' })
 * y2kSafeDate: Dayjs
 * ```
 *
 * @category Dayjs
 * @param maximum The maximum allowed value.
 * @param options
 * Accepts the following options (in addition to generic class-validator options):
 *   - `allow_invalid: boolean = false`
 *     If true, allow the Dayjs object to be invalid (see [isValid()](https://day.js.org/docs/en/parse/is-valid)).
 *   - `inclusive: boolean = false`
 *     If true, allow the `maximum` date as well.
 *   - `granularity: string = 'milliseconds'`
 *     Defines the [granularity](https://day.js.org/docs/en/manipulate/start-of#list-of-all-available-units), e.g. "day"
 *     to ignore hours, minutes, seconds and milliseconds.
 */
export declare function MaxDayjs(maximum: ConfigType, options?: {
    allow_invalid?: boolean;
    inclusive?: boolean;
    granularity?: OpUnitType;
} & ValidationOptions): PropertyDecorator;