update fn

chain.py

@@ -161,7 +161,7 @@ class ChainBuilder:
         # query_rewrite_prompt = self.get_query_rewrite_prompt()
 
         def get_date():
-            return {"today": datetime.datetime.now().strftime("%B %d, %Y")}
+            return datetime.datetime.now().strftime("%B %d, %Y")
 
         # RAG Chain
         chain = (