diff --git a/src/delta_barth/types.py b/src/delta_barth/types.py
index 667dc8a..96dafea 100644
--- a/src/delta_barth/types.py
+++ b/src/delta_barth/types.py
@@ -91,4 +91,7 @@ class CustomerDataSalesForecast:
     sales: list[float] = field(default_factory=list)
 
 
-FcResult: TypeAlias = tuple[DataPipelineErrors, pd.DataFrame | None]
+@dataclass(slots=True)
+class doptResult:
+    resp: doptResponse
+    res: pd.DataFrame | None