diff --git a/searx/shared/shared_abstract.py b/searx/shared/shared_abstract.py
index b4b15bea6..af4be30ae 100644
--- a/searx/shared/shared_abstract.py
+++ b/searx/shared/shared_abstract.py
@@ -1,20 +1,22 @@
 # SPDX-License-Identifier: AGPL-3.0-or-later
+# pyright: strict
 from abc import ABC, abstractmethod
+from typing import Optional
 
 
 class SharedDict(ABC):
     @abstractmethod
-    def get_int(self, key):
+    def get_int(self, key: str) -> Optional[int]:
         pass
 
     @abstractmethod
-    def set_int(self, key, value):
+    def set_int(self, key: str, value: int):
         pass
 
     @abstractmethod
-    def get_str(self, key):
+    def get_str(self, key: str) -> Optional[str]:
         pass
 
     @abstractmethod
-    def set_str(self, key, value):
+    def set_str(self, key: str, value: str):
         pass