def get_catalog_entry_notification_session_for_catalog(self, catalog_entry_receiver=None, catalog_id=None):
if catalog_entry_receiver is None:<EOL><INDENT>raise NullArgument<EOL><DEDENT>if catalog_id is None:<EOL><INDENT>raise NullArgument<EOL><DEDENT>raise Unimplemented()<EOL>
Gets the notification session for subscribing to changes to catalogs for the given catalog.

        arg:    catalog_entry_receiver
                (osid.cataloging.CatalogEntryReceiver): the notification
                callback
        arg:    catalog_id (osid.id.Id): the ``Id`` of the ``Catalog``
        return: (osid.cataloging.CatalogEntryNotificationSession) - a
                ``CatalogEntryNotificationSession``
        raise:  NullArgument - ``catalog_entry_receiver`` or
                ``catalog_id`` is ``null``
        raise:  OperationFailed - unable to complete request
        raise:  Unimplemented -
                ``supports_catalog_entry_notification()`` or
                ``supports_visible_federation()`` is ``false``
        *compliance: optional -- This method must be implemented if
        ``supports_catalog_entry_notification()`` and
        ``supports_visible_federation()`` are ``true``*