code: def get_balance(self, account: SEPAAccount):
          
  
          with self._get_dialog() as dialog:
              hksal = self._find_highest_supported_command(HKSAL5, HKSAL6, HKSAL7)
  
              seg = hksal(
                  account=hksal._fields['account'].type.from_sepa_account(account),
                  all_accounts=False,
              )
  
              response = dialog.send(seg)
  
              for resp in response.response_segments(seg, 'HISAL'):
                  return resp.balance_booked.as_mt940_Balance()
docs: Fetches an accounts current balance.
  
          :param account: SEPA account to fetch the balance
          :return: A mt940.models.Balance object