From e3b642d3137cc99d213bfbbd19229ca811b090a2 Mon Sep 17 00:00:00 2001
From: Anis SMAIL <anis.smail_externe@rte-france.com>
Date: Thu, 30 Jan 2025 09:48:41 +0100
Subject: [PATCH] refactor typing

---
 antarest/study/model.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/antarest/study/model.py b/antarest/study/model.py
index 7d1b835af1..f3d26e4c4b 100644
--- a/antarest/study/model.py
+++ b/antarest/study/model.py
@@ -297,7 +297,7 @@ def validate_folder(self, key: str, folder: t.Optional[str]) -> t.Optional[str]:
         return normalize_path(folder)
 
 
-def normalize_path(path: t.Optional[str]) -> str:
+def normalize_path(path: t.Optional[str]) -> t.Optional[str]:
     """
     Turns any path including a windows path (with \ separator) to a posix path (with / separator).
     """