diff --git a/secretflow_serving/ops/graph_version.h b/secretflow_serving/ops/graph_version.h
index 404d435..67d4b1f 100644
--- a/secretflow_serving/ops/graph_version.h
+++ b/secretflow_serving/ops/graph_version.h
@@ -1,18 +1,17 @@
 // Copyright 2024 Ant Group Co., Ltd.
-// 
+//
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
-// 
+//
 //   http://www.apache.org/licenses/LICENSE-2.0
-// 
+//
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-
 #pragma once
 
 // Version upgrade when `GraphDef` changed.
diff --git a/secretflow_serving/ops/tree_utils.h b/secretflow_serving/ops/tree_utils.h
index 7fb1c1f..e5bce01 100644
--- a/secretflow_serving/ops/tree_utils.h
+++ b/secretflow_serving/ops/tree_utils.h
@@ -1,18 +1,17 @@
 // Copyright 2024 Ant Group Co., Ltd.
-// 
+//
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
-// 
+//
 //   http://www.apache.org/licenses/LICENSE-2.0
-// 
+//
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-
 #pragma once
 
 #include <cmath>
diff --git a/secretflow_serving/tools/model_view/BUILD.bazel b/secretflow_serving/tools/model_view/BUILD.bazel
index 3b8d485..d08527f 100644
--- a/secretflow_serving/tools/model_view/BUILD.bazel
+++ b/secretflow_serving/tools/model_view/BUILD.bazel
@@ -1,11 +1,11 @@
 # Copyright 2024 Ant Group Co., Ltd.
-# 
+#
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
-# 
+#
 #   http://www.apache.org/licenses/LICENSE-2.0
-# 
+#
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/secretflow_serving/util/test_utils.cc b/secretflow_serving/util/test_utils.cc
index b365d00..19ad4e2 100644
--- a/secretflow_serving/util/test_utils.cc
+++ b/secretflow_serving/util/test_utils.cc
@@ -1,18 +1,17 @@
 // Copyright 2024 Ant Group Co., Ltd.
-// 
+//
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
-// 
+//
 //   http://www.apache.org/licenses/LICENSE-2.0
-// 
+//
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-
 #include "secretflow_serving/util/test_utils.h"
 
 #include <random>
diff --git a/secretflow_serving/util/test_utils.h b/secretflow_serving/util/test_utils.h
index ee50fd9..528f009 100644
--- a/secretflow_serving/util/test_utils.h
+++ b/secretflow_serving/util/test_utils.h
@@ -1,18 +1,17 @@
 // Copyright 2024 Ant Group Co., Ltd.
-// 
+//
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
-// 
+//
 //   http://www.apache.org/licenses/LICENSE-2.0
-// 
+//
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-
 #pragma once
 
 #include "arrow/api.h"
diff --git a/secretflow_serving_lib/api_test.py b/secretflow_serving_lib/api_test.py
index 33ccd78..9fee453 100644
--- a/secretflow_serving_lib/api_test.py
+++ b/secretflow_serving_lib/api_test.py
@@ -1,12 +1,11 @@
-
 # Copyright 2024 Ant Group Co., Ltd.
-# 
+#
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
-# 
+#
 #   http://www.apache.org/licenses/LICENSE-2.0
-# 
+#
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/secretflow_serving_lib/attr_pb2.py b/secretflow_serving_lib/attr_pb2.py
index fac355c..81634a1 100755
--- a/secretflow_serving_lib/attr_pb2.py
+++ b/secretflow_serving_lib/attr_pb2.py
@@ -1,12 +1,11 @@
-
 # Copyright 2024 Ant Group Co., Ltd.
-# 
+#
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
-# 
+#
 #   http://www.apache.org/licenses/LICENSE-2.0
-# 
+#
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/secretflow_serving_lib/bundle_pb2.py b/secretflow_serving_lib/bundle_pb2.py
index 2dafad5..61f58f0 100755
--- a/secretflow_serving_lib/bundle_pb2.py
+++ b/secretflow_serving_lib/bundle_pb2.py
@@ -1,12 +1,11 @@
-
 # Copyright 2024 Ant Group Co., Ltd.
-# 
+#
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
-# 
+#
 #   http://www.apache.org/licenses/LICENSE-2.0
-# 
+#
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/secretflow_serving_lib/compute_trace_pb2.py b/secretflow_serving_lib/compute_trace_pb2.py
index 857e99b..b9ac0f5 100644
--- a/secretflow_serving_lib/compute_trace_pb2.py
+++ b/secretflow_serving_lib/compute_trace_pb2.py
@@ -1,12 +1,11 @@
-
 # Copyright 2024 Ant Group Co., Ltd.
-# 
+#
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
-# 
+#
 #   http://www.apache.org/licenses/LICENSE-2.0
-# 
+#
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/secretflow_serving_lib/data_type_pb2.py b/secretflow_serving_lib/data_type_pb2.py
index a3cb447..91f49a2 100755
--- a/secretflow_serving_lib/data_type_pb2.py
+++ b/secretflow_serving_lib/data_type_pb2.py
@@ -1,12 +1,11 @@
-
 # Copyright 2024 Ant Group Co., Ltd.
-# 
+#
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
-# 
+#
 #   http://www.apache.org/licenses/LICENSE-2.0
-# 
+#
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/secretflow_serving_lib/feature_pb2.py b/secretflow_serving_lib/feature_pb2.py
index 87610f8..3fc882b 100755
--- a/secretflow_serving_lib/feature_pb2.py
+++ b/secretflow_serving_lib/feature_pb2.py
@@ -1,12 +1,11 @@
-
 # Copyright 2024 Ant Group Co., Ltd.
-# 
+#
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
-# 
+#
 #   http://www.apache.org/licenses/LICENSE-2.0
-# 
+#
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/secretflow_serving_lib/graph_pb2.py b/secretflow_serving_lib/graph_pb2.py
index 6c009a8..cdef4a2 100755
--- a/secretflow_serving_lib/graph_pb2.py
+++ b/secretflow_serving_lib/graph_pb2.py
@@ -1,12 +1,11 @@
-
 # Copyright 2024 Ant Group Co., Ltd.
-# 
+#
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
-# 
+#
 #   http://www.apache.org/licenses/LICENSE-2.0
-# 
+#
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/secretflow_serving_lib/link_function_pb2.py b/secretflow_serving_lib/link_function_pb2.py
index dc8b92d..b9b9cc4 100644
--- a/secretflow_serving_lib/link_function_pb2.py
+++ b/secretflow_serving_lib/link_function_pb2.py
@@ -1,12 +1,11 @@
-
 # Copyright 2024 Ant Group Co., Ltd.
-# 
+#
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
-# 
+#
 #   http://www.apache.org/licenses/LICENSE-2.0
-# 
+#
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/secretflow_serving_lib/op_pb2.py b/secretflow_serving_lib/op_pb2.py
index 66dd051..44e423c 100644
--- a/secretflow_serving_lib/op_pb2.py
+++ b/secretflow_serving_lib/op_pb2.py
@@ -1,12 +1,11 @@
-
 # Copyright 2024 Ant Group Co., Ltd.
-# 
+#
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
-# 
+#
 #   http://www.apache.org/licenses/LICENSE-2.0
-# 
+#
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.