code: def create_transaction(self, name, description=None,
                             tx_date=datetime.min.date(),
                             dt_account=None, cr_account=None,
                             source=None, amount=0.00):
          
  
          new_tx = Transaction(name, description, tx_date,
                               dt_account, cr_account, source, amount)
          self.transactions.append(new_tx)
          return new_tx
docs: Create a transaction in the general ledger.
  
          :param name: The transaction's name.
          :param description: The transaction's description.
          :param tx_date: The date of the transaction.
          :param cr_account: The transaction's credit account's name.
          :param dt_account: The transaction's debit account's name.
          :param source: The name of source the transaction originated from.
          :param amount: The transaction amount.
  
          :returns: The created transaction.