@abc.abstractmethod<EOL><INDENT>def apply_package_query(self, package_query):<DEDENT>
pass<EOL>
Applies a package query to this depot.

        :param package_query: the package query
        :type package_query: ``osid.installation.PackageQuery``
        :raise: ``NullArgument`` -- ``package_query`` is ``null``
        :raise: ``OperationFailed`` -- unable to complete request
        :raise: ``PermissionDenied`` -- authorization failure occurred
        :raise: ``Unsupported`` -- ``package_query`` not of this service

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