@abc.abstractmethod<EOL><INDENT>def get_catalog_form_for_update(self, catalog_id):<DEDENT>
return<EOL>
Gets the catalog form for updating an existing catalog.

        A new catalog form should be requested for each update
        transaction.

        :param catalog_id: the ``Id`` of the ``Catalog``
        :type catalog_id: ``osid.id.Id``
        :return: the catalog form
        :rtype: ``osid.cataloging.CatalogForm``
        :raise: ``NotFound`` -- ``catalog_id`` is not found
        :raise: ``NullArgument`` -- ``catalog_id`` is ``null``
        :raise: ``OperationFailed`` -- unable to complete request
        :raise: ``PermissionDenied`` -- authorization failure

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