How to create a type from our own class, like z.instanceOf

[Dhruv-Garg79]

I am having my own data class, which I will like to use as a type

export default class MyDate extends Date {
	public fromCloudTimestamp(timestamp: { _seconds: number; _nanoseconds: number }): MyDate {
		return new MyDate(timestamp._seconds * 1000 + timestamp._nanoseconds / 1000000);
	}

	public isAfter = (date: MyDate, unit?: dayjs.OpUnitType): boolean => {
		return dayjs(this).isAfter(date, unit);
	};

	public isBefore = (date: MyDate, unit?: dayjs.OpUnitType): boolean => {
		return dayjs(this).isBefore(date, unit);
	};
}

I want to use above class as type in my schema, like this.

export const userSchema = Type.Object({
	id: Type.String(),
	updated_at: Type.InstanceType(MyDate),
});

Getting this TS error, when using InstanceType

Argument of type 'typeof MyDate' is not assignable to parameter of type 'TConstructor<any[], any>'.
  Type 'typeof MyDate' is missing the following properties from type 'TConstructor<any[], any>': static, type, parameters, returns, and 2 more

is there a way to do this in TypeBox?

[Dhruv-Garg79]

@sinclairzx81 any idea about this?