Update rag_langgraph.py

rag_langgraph.py

@@ -125,10 +125,10 @@ def run_multi_agent(topic, word_count):
     print("###")
     print(result)
     print("###")
-    print(result.messages)
+    print(result['messages'])
     print("###")
-    print(result.messages[1])
+    print(result['messages'][1])
     print("###")
-    print(result.messages[1]).content
+    print(result['messages'][1].content)
     print("###")
-    return result
+    return result['messages'][1].content