Update agent.py

agent.py

@@ -1,5 +1,5 @@
 from typing import TypedDict, Annotated
-from tool import add, substract, multiply, divide, DuckDuckGoSearchTool, WikipediaSearchTool, ArxivSearchTool, PubmedSearchTool
+from tool import add, substract, multiply, divide, DuckDuckGoSearchTool, TavilySearchTool, WikipediaSearchTool, ArxivSearchTool, PubmedSearchTool
 from os import getenv
 from langgraph.graph.message import add_messages
 from langchain_core.messages import AnyMessage, SystemMessage, HumanMessage, AIMessage
@@ -28,6 +28,7 @@ tools = [add,
          multiply, 
          divide, 
          DuckDuckGoSearchTool, 
+         TavilySearchTool,
          WikipediaSearchTool, 
          ArxivSearchTool, 
          PubmedSearchTool]