nit

api/extensions/ext_storage.py

@@ -1,16 +1,14 @@
 import logging
 from collections.abc import Generator
-from typing import TYPE_CHECKING, Union
+from typing import Union
 
 from flask import Flask
 
 from configs import dify_config
+from dify_app import DifyApp
 from extensions.storage.base_storage import BaseStorage
 from extensions.storage.storage_type import StorageType
 
-if TYPE_CHECKING:
-    from dify_app import DifyApp
-
 
 class Storage:
     def __init__(self):
@@ -125,5 +123,5 @@ def delete(self, filename):
 storage = Storage()
 
 
-def init_app(app: "DifyApp"):
+def init_app(app: DifyApp):
     storage.init_app(app)