@abc.abstractmethod<EOL><INDENT>def get_banks_by_query(self, bank_query):<DEDENT>
return<EOL>
Gets a list of ``Bank`` objects matching the given bank query.

        :param bank_query: the bank query
        :type bank_query: ``osid.assessment.BankQuery``
        :return: the returned ``BankList``
        :rtype: ``osid.assessment.BankList``
        :raise: ``NullArgument`` -- ``bank_query`` is ``null``
        :raise: ``OperationFailed`` -- unable to complete request
        :raise: ``PermissionDenied`` -- authorization failure occurred
        :raise: ``Unsupported`` -- ``bank_query`` is not of this service

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