diff --git a/lib/dl_file_uploader_lib/dl_file_uploader_lib/yadocs_client.py b/lib/dl_file_uploader_lib/dl_file_uploader_lib/yadocs_client.py
index 1ab528df2..435e03908 100644
--- a/lib/dl_file_uploader_lib/dl_file_uploader_lib/yadocs_client.py
+++ b/lib/dl_file_uploader_lib/dl_file_uploader_lib/yadocs_client.py
@@ -1,6 +1,9 @@
 from __future__ import annotations
 
-from typing import Any
+from typing import (
+    Any,
+    Type,
+)
 
 from aiohttp.client import ClientSession
 
@@ -8,6 +11,8 @@
 
 
 def yadocs_error_to_file_uploader_exception(status_code: int, resp_info: dict) -> file_upl_exc.DLFileUploaderBaseError:
+    err_cls: Type[file_upl_exc.DLFileUploaderBaseError]
+
     if status_code == 401:
         err_cls = file_upl_exc.PermissionDenied
     elif status_code == 404: