@abc.abstractmethod<EOL><INDENT>def get_vaults_by_query(self, vault_query):<DEDENT>
return<EOL>
Gets a list of ``Vault`` objects matching the given search.

        :param vault_query: the vault query
        :type vault_query: ``osid.authorization.VaultQuery``
        :return: the returned ``VaultList``
        :rtype: ``osid.authorization.VaultList``
        :raise: ``NullArgument`` -- ``vault_query`` is ``null``
        :raise: ``OperationFailed`` -- unable to complete request
        :raise: ``PermissionDenied`` -- authorization failure
        :raise: ``Unsupported`` -- ``vault_query`` is not of this service

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