minor change

neural_searcher.py

@@ -15,7 +15,7 @@ class NeuralSearcher:
     
     async def search(self, text: str):
   
-        dense_query = next(self.dense_model.encode(text).tolist())
+        dense_query = next(iter(self.dense_model.encode(text)))
         sparse_query = next(self.sparse_model.query_embed(text))
         late_query = next(self.late_interaction_embedding_model.query_embed(text))