Dataclass combining other dataclass

dataclass_combine.py

from dataclasses import dataclass
from typing import List
import datetime

@dataclass
class Order:
    date: datetime.datetime
    price: float = 0.0
 
@dataclass
class User:
    email: str
    orders: List[Order]
    name: str = "First name"
    surname: str = "Last name"

user_instance = User('test@test.com',[],'Petros', 'Demetrakopoulos',)
print(user_instance)