import { AbstractType } from "./AbstractType";
import { MomentType } from "./MomentType";
import { Req, scalar } from "@huz-com/types";
import moment from "moment";
import { IsoDateTypeOption } from "./index.interfaces";
declare type T = scalar.IsoDate;
declare type O = IsoDateTypeOption;
export declare class IsoDateType extends AbstractType<T, O> {
    protected static readonly _PATTERN: RegExp;
    protected static readonly _FORMAT = "yyyy-mm-dd";
    protected static _ins: IsoDateType;
    protected _momentType: MomentType;
    /**
     * Returns skeleton instance
     * */
    static ins(): IsoDateType;
    constructor();
    /**
     * Checks is iso-date?
     */
    is(value: scalar.Unknown, opt?: O, req?: Req): boolean;
    protected _format(value: moment.Moment): scalar.DatetimeStr;
    /**
     * Converts a value to formatted iso datetime
     */
    cast(value: scalar.Unknown, opt?: O, req?: Req): T | null;
}
export {};