diff --git a/applications/Chat/examples/ray/mmmt_prompt.py b/applications/Chat/examples/ray/mmmt_prompt.py
index 60f049bd5..76929c9d0 100644
--- a/applications/Chat/examples/ray/mmmt_prompt.py
+++ b/applications/Chat/examples/ray/mmmt_prompt.py
@@ -87,8 +87,8 @@ def main(args):
             kl_coef=0.1,
             debug=args.debug,
             update_lora_weights=not (args.lora_rank == 0),
-            # sync_models_from_trainers=True,
-            # generation kwargs:
+    # sync_models_from_trainers=True,
+    # generation kwargs:
             max_length=512,
             do_sample=True,
             temperature=1.0,
@@ -161,12 +161,10 @@ if __name__ == '__main__':
     parser.add_argument('--prompt_path', type=str, default=None)
     parser.add_argument('--num_makers', type=int, default=1)
     parser.add_argument('--num_trainers', type=int, default=1)
-    parser.add_argument('--trainer_strategy',
-                        choices=[
-                            'ddp', 'colossalai_gemini', 'colossalai_zero2', 'colossalai_gemini_cpu',
-                            'colossalai_zero2_cpu'
-                        ],
-                        default='ddp')
+    parser.add_argument(
+        '--trainer_strategy',
+        choices=['ddp', 'colossalai_gemini', 'colossalai_zero2', 'colossalai_gemini_cpu', 'colossalai_zero2_cpu'],
+        default='ddp')
     parser.add_argument('--maker_strategy', choices=['naive'], default='naive')
     parser.add_argument('--model', default='gpt2', choices=['gpt2', 'bloom', 'opt', 'llama'])
     parser.add_argument('--critic_model', default='gpt2', choices=['gpt2', 'bloom', 'opt', 'llama'])