DataSource metrics uses wrong format

   "DestroyedCount" => {
                "attributes" => {"DestroyedCount" => {
                    "description" => "The destroyed count",
                    "type" => INT,
                    "required" => false,
                    "read-only" => true
                }},
                "access-type" => "metric",
                "storage" => "runtime"
            }