import { DateTime } from 'luxon';
import { YearlessDate } from '../types';
export declare function convertStringToDate(v: string | null | undefined): DateTime | null | undefined;
export declare function validateDate({ date, constraints, }: {
    date: DateTime | null;
    constraints: {
        required?: boolean;
        unavailable?: {
            dates?: DateTime[];
            daysOfWeek?: number[];
        };
        minDate?: DateTime;
        maxDate?: DateTime;
    };
}): boolean;
export declare function validateYearlessDate({ value, constraints, }: {
    value: YearlessDate | null;
    constraints: {
        required?: boolean;
        unavailable?: {
            dates?: YearlessDate[];
        };
        minDate?: YearlessDate | null;
        maxDate?: YearlessDate | null;
    };
}): boolean;