Add debug print statement in generate function of main.py to output messages before invoking the LLM.

main.py

@@ -84,6 +84,7 @@ def retrieve(state: State):
 def generate(state: State):
     docs_content = "\n\n".join(doc.page_content for doc in state["context"])
     messages = prompt.invoke({"question": state["question"], "context": docs_content})
+    print(messages)
     response = llm.invoke(messages)
     return {"answer": response.content}