diff --git a/src/llmtuner/extras/constants.py b/src/llmtuner/extras/constants.py
index cf68a225..5b81a9a9 100644
--- a/src/llmtuner/extras/constants.py
+++ b/src/llmtuner/extras/constants.py
@@ -995,6 +995,7 @@ register_model_group(
     template="atom",
 )
 
+
 register_model_group(
     models={
         "C4AI-Command-R-35B": {
@@ -1005,6 +1006,7 @@ register_model_group(
     template="c4ai",
 )
 
+
 register_model_group(
     models={
         "C4AI-Command-R-plus-104B": {