fix codecheck

Author: liuximeng

recipe/transfer_queue/ray_trainer.py

@@ -60,8 +60,8 @@
     compute_timing_metrics,
     process_validation_metrics,
 )
-from verl.trainer.ppo.reward import compute_reward, compute_reward_async
 from verl.trainer.ppo.ray_trainer import RayPPOTrainer, ResourcePoolManager
+from verl.trainer.ppo.reward import compute_reward, compute_reward_async
 from verl.trainer.ppo.utils import (
     Role,
     WorkerType,
@@ -324,7 +324,7 @@ def __init__(
             val_dataset,
             collate_fn,
             train_sampler,
-            device_name
+            device_name,
         )
         self._create_dataloader(train_dataset, val_dataset, collate_fn, train_sampler)