diff --git a/api/onnx_web/convert/utils.py b/api/onnx_web/convert/utils.py
index 7bb02e82..0466e5dc 100644
--- a/api/onnx_web/convert/utils.py
+++ b/api/onnx_web/convert/utils.py
@@ -150,6 +150,7 @@ class Config(object):
     """
     Shim for pydantic-style config.
     """
+
     def __init__(self, kwargs):
         self.__dict__.update(kwargs)
         for k, v in self.__dict__.items():