Introduce BudgetarySubItem type

from dataclasses import dataclass

from decimal import Decimal

from typing import Any

from .BudgetarySubItem import BudgetarySubItem

@dataclass(frozen=True, eq=False)

    740.0208, Projekte und Veranstaltungen kultureller Art, 550.00 €

    Every payment order needs to reference a budgetary item out of which the money is taken.

    An item in a budget plan can have sub items.

    """

    id: str

    name: str

    amount: Decimal

    sub_items: tuple[BudgetarySubItem, ...] = ()

    @property

    def as_dict(self) -> dict[str, str]:

        return {"id": self.id, "name": self.name, "amount": str(self.amount)}

    def as_dict(self) -> dict[str, Any]:

        return {

            "id": self.id,

            "name": self.name,

            "amount": str(self.amount),

            "subItems": [sub_item.as_dict for sub_item in self.sub_items],

        }

from dataclasses import dataclass

from decimal import Decimal

@dataclass(frozen=True, eq=False)

class BudgetarySubItem:

    """A sub-item of an item in a budget plan.

    Has a name and an amount, e.g.,

    Sommerfest, 350.00 €

    """

    name: str

    amount: Decimal

    @property

    def as_dict(self) -> dict[str, str]:

        return {"name": self.name, "amount": str(self.amount)}