Update rag_langgraph.py

rag_langgraph.py

@@ -96,10 +96,10 @@ def create_graph(topic):
         | JsonOutputFunctionsParser()
     )
 
-    researcher_agent = create_agent(llm, [tavily_tool, today_tool], system_prompt="1. Research content on topic: " + topic + ", prioritizing research papers. "
-                                                                                  "2. Based on your research, write a 2000-word article on the topic. "
-                                                                                  "3. At the beginning of the article, add current date and author: Multi-AI-Agent System. "
-                                                                                  "4. At the end of the article, add a reference section with research papers.")
+    researcher_agent = create_agent(llm, [tavily_tool, today_tool], system_prompt=("1. Research content on topic: {topic}, prioritizing research papers. "
+                                                                                   "2. Based on your research, write a 2000-word article on the topic. "
+                                                                                   "3. At the beginning of the article, add current date and author: Multi-AI-Agent System. "
+                                                                                   "4. At the end of the article, add a reference section with research papers."))
     researcher_node = functools.partial(agent_node, agent=researcher_agent, name="Researcher")
 
     #writer_agent = create_agent(llm, [today_tool], system_prompt=f"Write a 2000-word article on topic: {topic}. At the beginning, add current date and author: Multi-AI-Agent System based on GPT-4o. At the end, add a reference section with research papers.")