Update src/chat_langraph.py

src/chat_langraph.py

@@ -218,8 +218,10 @@ def input_node(state: chatstate):
 
 
 def llmresponse(state: chatstate):
-    response = llm.invoke(state["messages"])
-    return {"messages": [response]}
+    response = llm.stream(state["messages"])
+    for chunk in response:
+        
+        yield {"messages": [chunk]};
 
 
 def checktool(state: chatstate):