def add_expense(self, bank_action: MbankAction) -> None:
"""Adds an expense to the database."""
bank_action.amount_pln *= -1
self.bank_actions.insert(None).execute(**bank_action.asdict())
def add_positive_transfer(self, positive_action: MbankAction) -> None:
"""Adds a positive transfer to the database."""
self.bank_actions.insert(None).execute(**positive_action.asdict())