refactor: import vllm module for improved functionality

generate_summaries_uv.py

@@ -27,6 +27,7 @@ from huggingface_hub import login, dataset_info, snapshot_download
 from tqdm.auto import tqdm
 from transformers import AutoTokenizer
 from vllm import LLM, SamplingParams
+import vllm
 
 # Setup logging
 logging.basicConfig(