Fix: tokenizer issue. (#11902)

#11786
### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

api/apps/sdk/files.py

@@ -33,6 +33,7 @@ from api.utils.web_utils import CONTENT_TYPE_MAP
 from common import settings
 from common.constants import RetCode
 
+
 @manager.route('/file/upload', methods=['POST'])  # noqa: F821
 @token_required
 async def upload(tenant_id):