export declare class TbxDates {
    static isDate(value: any): value is Date;
    static isNotDate(value: any): value is Date;
    static isValid(date: any): date is Date;
    static isNotValid(date: any): date is Date;
    static isDateIso(value: any): boolean;
    static toIsoDate(value: any): Date | null;
    static toDate(value: any): Date | null;
}