Update app.py

app.py

@@ -406,7 +406,7 @@ def generate_response(input_dict, use_openai=False, max_tokens=700):
 
 
 # =================== RAG Chain ===================
-def get_rag_chain(retriever, use_openai=False):
+def get_rag_chain(retriever, use_openai=False, max_tokens=700):
     def merge_contexts(inputs):
         retrieved_chunks = format_docs(retriever.invoke(inputs["question"]))
         combined = "\n\n".join(filter(None, [