fix lint

examples/providers/context_local_resource.py

@@ -33,7 +33,6 @@ class Container(containers.DeclarativeContainer):
 @app.get("/")
 @inject
 async def index(db: AsyncSessionLocal = Depends(Closing[Provide["db_session"]])):
-    global global_list
     if db.id in global_list:
         raise Exception("The db session is already used")  # never reaches here
     global_list.append(db.id)