+ (group_class == 'project' or group_class == 'filter') ? 'Project' : super
+ end
+
+ def textile_attributes
+ [ 'description' ]
+ end
+
+ def self.creatable?
+ false
+ end
+
+ def untrash
+ arvados_api_client.api(self.class, "/#{self.uuid}/untrash", {"ensure_unique_name" => true})