fix yapf error

Signed-off-by: Ronald1995 <[email protected]>

Author: Ronald1995

vllm_ascend/worker/npu_input_batch.py

@@ -69,6 +69,7 @@ class CachedRequestState:
     prompt_embeds: Optional[torch.Tensor] = None
 
     prev_num_draft_len: int = 0  # previous number of draft tokens
+
     def __post_init__(self):
         self.num_prompt_tokens = length_from_prompt_token_ids_or_embeds(
             self.prompt_token_ids, self.prompt_embeds)