from dataclasses import dataclass

@dataclass
class Dish:
    id: int
    name: str
    price: float
    description: str = ""
    is_available: bool = True

    def with_new_price(self, new_price: float) -> 'Dish':
        return Dish(
            id=self.id,
            name=self.name,
            price=new_price,
            description=self.description,
            is_available=self.is_available
        )

plat_01 = Dish(id=1, name="Spaghetti Carbonara", price=12.99, description="Classic Italian pasta dish with eggs, cheese, pancetta, and pepper.")