From e6958a728f67d82206504cb2b269e691482fdae9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?H=C3=A5kon=20V=2E=20Treider?= <haakonvt@gmail.com>
Date: Wed, 26 Apr 2023 13:50:50 +0200
Subject: [PATCH] more dunder method work

---
 cognite/client/data_classes/_base.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cognite/client/data_classes/_base.py b/cognite/client/data_classes/_base.py
index 0f1616d428..560677e3dc 100644
--- a/cognite/client/data_classes/_base.py
+++ b/cognite/client/data_classes/_base.py
@@ -223,7 +223,7 @@ def __delitem__(self, i: SupportsIndex | slice) -> None:
 
     def __iadd__(self: T_CogniteBaseList, other: Iterable[Any]) -> T_CogniteBaseList:
         self.extend(other)  # type: ignore [arg-type]
-        return cast(T_CogniteBaseList, self)
+        return self
 
     def __mul__(self, n: int) -> NoReturn:
         """Cognite resource lists do not support ops that introduce duplicates, so __[,r,i]mul__ is not supported"""