Update agent.py

agent.py

@@ -181,7 +181,7 @@ tools = [
     arvix_search,
     create_retriever_tool
 ]
-def build_graph()
+def build_graph():
     """Build the graph"""
     llm = init_chat_model("google_genai:gemini-2.0-flash",google_api_key=os.environ["GOOGLE_API_KEY"])
     llm_with_tools = llm.bind_tools(tools)