Update reranker/rank_listwise_os_vllm.py

reranker/rank_listwise_os_vllm.py

@@ -8,9 +8,8 @@ import torch
 import numpy as np
 from ftfy import fix_text
 from vllm import LLM, SamplingParams, RequestOutput
-from rankllm import Prompt
 
-from .rankllm import PromptMode, RankLLM
+from .rankllm import Prompt, PromptMode, RankLLM
 from .result import Result
 
 ALPH_START_IDX = ord('A') - 1