From 2ac4492bcee5d129d2045bbdf596ec13a669bb04 Mon Sep 17 00:00:00 2001
From: Viicos <65306057+Viicos@users.noreply.github.com>
Date: Mon, 29 Sep 2025 10:00:38 +0200
Subject: [PATCH] Revert "Match return type of SerializationInfo.mode() to mode
 of model_dump() (#1770)"

This reverts commit d0dbb097ec96e06e4b32fce53acad2013625bc11.
See https://github.com/pydantic/pydantic-core/pull/1747#discussion_r2260241567
for more details.
---
 python/pydantic_core/core_schema.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/python/pydantic_core/core_schema.py b/python/pydantic_core/core_schema.py
index 298b4f3ec..a04427e0c 100644
--- a/python/pydantic_core/core_schema.py
+++ b/python/pydantic_core/core_schema.py
@@ -145,7 +145,7 @@ def context(self) -> ContextT:
         ...
 
     @property
-    def mode(self) -> Literal['python', 'json'] | str:
+    def mode(self) -> Literal['python', 'json']:
         """The serialization mode set during serialization."""
         ...