@abc.abstractmethod<EOL><INDENT>def get_depots_by_query(self, depot_query):<DEDENT>
return<EOL>
Gets a list of ``Depot`` objects matching the given depot query.

        :param depot_query: the depot query
        :type depot_query: ``osid.installation.DepotQuery``
        :return: the returned ``DepotList``
        :rtype: ``osid.installation.DepotList``
        :raise: ``NullArgument`` -- ``depot_query`` is ``null``
        :raise: ``OperationFailed`` -- unable to complete request
        :raise: ``PermissionDenied`` -- authorization failure
        :raise: ``Unsupported`` -- ``depot_query`` is not of this service

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