Update langgraph

langgraph

@@ -8,7 +8,6 @@ from langchain_core.messages import (
 from langchain_core.prompts import ChatPromptTemplate, MessagesPlaceholder
 from langgraph.graph import END, StateGraph
 
-
 def create_agent(llm, tools, system_message: str):
     """Create an agent."""
     prompt = ChatPromptTemplate.from_messages(
@@ -181,4 +180,7 @@ events = graph.stream(
 )
 for s in events:
     print(s)
-    print("----")
+    print("----")
+
+def run_multi_agent():
+  return "DONE"