@abc.abstractmethod<EOL><INDENT>def register_for_deleted_package(self, package_id):<DEDENT>
pass<EOL>
Registers for notification of a deleted package.

        ``PackageReceiver.deletedPackages()`` is invoked when the
        specified package is removed from this depot.

        :param package_id: the ``Id`` of the ``Package`` to monitor
        :type package_id: ``osid.id.Id``
        :raise: ``NullArgument`` -- ``package_id is null``
        :raise: ``OperationFailed`` -- unable to complete request
        :raise: ``PermissionDenied`` -- authorization failure

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