@abc.abstractmethod<EOL><INDENT>def get_banks_by_provider(self, resource_id):<DEDENT>
return<EOL>
Gets a ``BankList`` from the given provider ````.

        In plenary mode, the returned list contains all known banks or
        an error results. Otherwise, the returned list may contain only
        those banks that are accessible through this session.

        :param resource_id: a resource ``Id``
        :type resource_id: ``osid.id.Id``
        :return: the returned ``Bank`` list
        :rtype: ``osid.assessment.BankList``
        :raise: ``NullArgument`` -- ``resource_id`` is ``null``
        :raise: ``OperationFailed`` -- unable to complete request
        :raise: ``PermissionDenied`` -- authorization failure occurred

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