@abc.abstractmethod<EOL><INDENT>def register_for_changed_bank(self, bank_id):<DEDENT>
pass<EOL>
Registers for notification of an updated bank.

        ``BankReceiver.changedBanks()`` is invoked when the specified
        bank is changed.

        :param bank_id: the Id of the bank to monitor
        :type bank_id: ``osid.id.Id``
        :raise: ``NullArgument`` -- ``bank_id is null``
        :raise: ``OperationFailed`` -- unable to complete request
        :raise: ``PermissionDenied`` -- authorization failure occurred

        *compliance: mandatory -- This method must be implemented.*