Format files (#541)

## Summary

Format

## Testing Done
<!--- This is a required section; please describe how this change was
tested. --->

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- Hardware Type: <BLANK>
- [ ] run `make test` to ensure correctness
- [X] run `make checkstyle` to ensure code style
- [ ] run `make test-convergence` to ensure convergence

Signed-off-by: Austin Liu <austin362667@gmail.com>

test/convergence/test_mini_models_multimodal.py

@@ -1,6 +1,15 @@
 import functools
 import os
 
+import pytest
+import torch
+
+from datasets import load_dataset
+from torch.utils.data import DataLoader
+from transformers import PreTrainedTokenizerFast
+
+from liger_kernel.transformers import apply_liger_kernel_to_mllama
+from liger_kernel.transformers import apply_liger_kernel_to_qwen2_vl
 from test.utils import FAKE_CONFIGS_PATH
 from test.utils import UNTOKENIZED_DATASET_PATH
 from test.utils import MiniModelConfig
@@ -13,16 +22,6 @@
 from test.utils import supports_bfloat16
 from test.utils import train_bpe_tokenizer
 
-import pytest
-import torch
-
-from datasets import load_dataset
-from torch.utils.data import DataLoader
-from transformers import PreTrainedTokenizerFast
-
-from liger_kernel.transformers import apply_liger_kernel_to_mllama
-from liger_kernel.transformers import apply_liger_kernel_to_qwen2_vl
-
 try:
     # Qwen2-VL is only available in transformers>=4.45.0
     from transformers.models.qwen2.tokenization_qwen2_fast import Qwen2TokenizerFast

test/transformers/test_fused_linear_cross_entropy.py

@@ -1,11 +1,12 @@
-from test.transformers.test_cross_entropy import CrossEntropyWithZLoss
-from test.utils import assert_verbose_allclose
-from test.utils import set_seed
 from typing import Optional
 
 import pytest
 import torch
 
+from test.transformers.test_cross_entropy import CrossEntropyWithZLoss
+from test.utils import assert_verbose_allclose
+from test.utils import set_seed
+
 from liger_kernel.ops.fused_linear_cross_entropy import LigerFusedLinearCrossEntropyFunction
 from liger_kernel.transformers.functional import liger_fused_linear_cross_entropy
 from liger_kernel.transformers.fused_linear_cross_entropy import LigerFusedLinearCrossEntropyLoss

test/transformers/test_rms_norm.py

@@ -1,13 +1,13 @@
 import os
 
-from test.utils import assert_verbose_allclose
-from test.utils import set_seed
-from test.utils import supports_bfloat16
-
 import pytest
 import torch
 import torch.nn as nn
 
+from test.utils import assert_verbose_allclose
+from test.utils import set_seed
+from test.utils import supports_bfloat16
+
 from liger_kernel.ops.rms_norm import LigerRMSNormFunction
 from liger_kernel.transformers.functional import liger_rms_norm
 from liger_kernel.transformers.rms_norm import LigerRMSNorm

test/utils.py

@@ -541,7 +541,9 @@ def get_batch_loss_metrics(
         **loss_kwargs,
     ):
         """Compute the loss metrics for the given batch of inputs for train or test."""
-        forward_output = self.concatenated_forward(_input, weight, target, bias, average_log_prob, preference_labels, nll_target)
+        forward_output = self.concatenated_forward(
+            _input, weight, target, bias, average_log_prob, preference_labels, nll_target
+        )
         (
             policy_chosen_logps,
             policy_rejected_logps,