[CI] Try introducing isort. (#3495)

vllm/model_executor/models/olmo.py

@@ -40,32 +40,27 @@ from typing import List, Optional, Tuple
 
 import torch
 import torch.nn.functional as F
+# this model must need this dependency
+from hf_olmo import OLMoConfig
 from torch import nn
 
 from vllm.attention import Attention, AttentionMetadata
-from vllm.model_executor.layers.linear import (
-    ColumnParallelLinear,
-    LinearMethodBase,
-    QKVParallelLinear,
-    RowParallelLinear,
-)
-from vllm.model_executor.layers.rotary_embedding import get_rope
+from vllm.model_executor.layers.linear import (ColumnParallelLinear,
+                                               LinearMethodBase,
+                                               QKVParallelLinear,
+                                               RowParallelLinear)
 from vllm.model_executor.layers.logits_processor import LogitsProcessor
+from vllm.model_executor.layers.rotary_embedding import get_rope
 from vllm.model_executor.layers.sampler import Sampler
 from vllm.model_executor.layers.vocab_parallel_embedding import (
     VocabParallelEmbedding)
 from vllm.model_executor.parallel_utils.parallel_state import (
-    get_tensor_model_parallel_world_size, )
+    get_tensor_model_parallel_world_size)
 from vllm.model_executor.sampling_metadata import SamplingMetadata
-from vllm.model_executor.weight_utils import (
-    default_weight_loader,
-    hf_model_weights_iterator,
-)
+from vllm.model_executor.weight_utils import (default_weight_loader,
+                                              hf_model_weights_iterator)
 from vllm.sequence import SamplerOutput
 
-# this model must need this dependency
-from hf_olmo import OLMoConfig
-
 
 class SwiGLU(nn.Module):