Update rag_langgraph.py

rag_langgraph.py

@@ -26,7 +26,10 @@ class AgentState(TypedDict):
 def create_agent(llm: ChatOpenAI, tools: list, system_prompt: str):
     prompt = ChatPromptTemplate.from_messages(
         [
-            ("system", system_prompt),
+            (
+                "system", 
+                system_prompt
+            ),
             MessagesPlaceholder(variable_name="messages"),
             MessagesPlaceholder(variable_name="agent_scratchpad"),
         ]
@@ -42,7 +45,7 @@ def agent_node(state, agent, name):
 def create_graph(topic, word_count):
     tavily_tool = TavilySearchResults(max_results=10)
     
-    members = ["Blogger"]
+    members = ["Researcher", "Blogger"]
     
     system_prompt = (
         "You are a manager tasked with managing a conversation between the"