Return added transactions in sync

from collections.abc import Generator

from collections.abc import Generator, Sequence

from contextlib import contextmanager

from fints.client import FinTS3PinTanClient

        accounts = client.get_sepa_accounts()

        return next(account for account in accounts if account.iban == str(self.iban))

    def sync(self, password: str) -> None:

    def sync(self, password: str) -> Sequence[Transaction]:

        """

        Retrieve a list of transactions from the bank, and make sure all of them exist locally.

        :return: the newly created transactions, if any

        """

        with self._fints_client(password) as client:

            account = self._fints_account(client)

            mt940_transactions = client.get_transactions(account)

            for mt940_transaction in mt940_transactions:

                if not Transaction.get_corresponding(mt940_transaction, account=self):

                    transaction = Transaction.from_corresponding(

                        mt940_transaction, account=self

            new_transactions = tuple(

                Transaction.from_corresponding(mt940_transaction, account=self)

                for mt940_transaction in mt940_transactions

                if not Transaction.get_corresponding(mt940_transaction, account=self)

            )

                    db.session.add(transaction)

            db.session.add_all(new_transactions)

        db.session.commit()

        return new_transactions