JSON zu Python: JSON mit json.loads und Datenklassen deserialisieren

{
  "user": {
    "id": 12345,
    "name": "Priya Sharma",
    "email": "[email protected]",
    "age": 29,
    "is_premium": true,
    "skills": [
      "Python",
      "Machine Learning",
      "Data Science"
    ],
    "address": {
      "street": "123 Tech Street",
      "city": "Mumbai",
      "country": "India",
      "postal_code": "400001"
    }
  }
}

from dataclasses import dataclass
from typing import List, Optional
import json

@dataclass
class Address:
    street: str
    city: str
    country: str
    postal_code: str

@dataclass
class User:
    id: int
    name: str
    email: str
    age: int
    is_premium: bool
    skills: List[str]
    address: Address

    @classmethod
    def from_json(cls, json_str: str) -> 'User':
        data = json.loads(json_str)
        # Parsing implementation...